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Which of the following is not a country: the United States, Gorbachev, or Russia?
The economy of Russia became heavily industrialized, accounting for about two-thirds of the electricity produced in the USSR. It was, by 1961, the third largest producer of petroleum due to new discoveries in the Volga-Urals region and Siberia, trailing only the United States and Saudi Arabia. In 1974, there were 475 i...
Gorbachev
advqa_2900
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
When did the Russian economic structure really start to slow down?
The economy of Russia became heavily industrialized, accounting for about two-thirds of the electricity produced in the USSR. It was, by 1961, the third largest producer of petroleum due to new discoveries in the Volga-Urals region and Siberia, trailing only the United States and Saudi Arabia. In 1974, there were 475 i...
late 1970s
advqa_2901
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which of the following is not a natural landmark: the Volga, the Urals or the USSR?
The economy of Russia became heavily industrialized, accounting for about two-thirds of the electricity produced in the USSR. It was, by 1961, the third largest producer of petroleum due to new discoveries in the Volga-Urals region and Siberia, trailing only the United States and Saudi Arabia. In 1974, there were 475 i...
the USSR
advqa_2902
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Where in the world could you find more of the fuel that runs cars than in Russia?
The economy of Russia became heavily industrialized, accounting for about two-thirds of the electricity produced in the USSR. It was, by 1961, the third largest producer of petroleum due to new discoveries in the Volga-Urals region and Siberia, trailing only the United States and Saudi Arabia. In 1974, there were 475 i...
United States and Saudi Arabia
advqa_2903
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
In what country were there nearly 24 million students in the 1970s?
The economy of Russia became heavily industrialized, accounting for about two-thirds of the electricity produced in the USSR. It was, by 1961, the third largest producer of petroleum due to new discoveries in the Volga-Urals region and Siberia, trailing only the United States and Saudi Arabia. In 1974, there were 475 i...
Russia
advqa_2904
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
A practitioner and her partner who are adults would do their Sport Aerobics routine in which space?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
larger floor (10x10m)
advqa_2905
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the smallest number of practitioners who can perform sport aerobics?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
individuals
advqa_2906
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Who can do Aerobic Gymnastics other than individuals, trios, and six people groups?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
pairs
advqa_2907
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
If a person and her two friends wanted to form an aerobic gymnastics group, what category would they fall into?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
trios
advqa_2908
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What kind of group is one third as large as the largest allowed group for an aerobic gymnastics routine?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
pairs
advqa_2909
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Who performs on the same floor as single competitors?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
12–14 and 15-17 trios and mixed pairs
advqa_2910
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Lifting weights can help with what foundation of aerobic gymnastics?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
strength
advqa_2911
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Whether or not a practitioner can do the splits during her routine falls under what foundation of Sports Aerobics?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
flexibility
advqa_2912
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the routine called when 3 people perform?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
trios
advqa_2913
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the length of one side of an individual aerobic gymnasts performance area?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
7x7m
advqa_2914
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
For adults performing in groups, what is the area of their performance space?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
10x10m
advqa_2915
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Who can do Aerobic Gymnastics other than individuals, pairs, and six people groups?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
trios
advqa_2916
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the youngest an aerobic gymnast must be to compete?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
12
advqa_2917
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is a routine called when only 2 people perform?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
pairs
advqa_2918
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is a routine called when only one person performs?
Aerobic gymnastics (formally Sport Aerobics) involves the performance of routines by individuals, pairs, trios or groups up to 6 people, emphasizing strength, flexibility, and aerobic fitness rather than acrobatic or balance skills. Routines are performed for all individuals on a 7x7m floor and also for 12–14 and 15-17...
individuals
advqa_2919
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which of the following is affected by the time the landing takes: flight phase, the shape of the area, or ground reaction force?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
shape of the area
advqa_2920
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which of the following is a type of momentum: linear, vertical, or external?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
linear
advqa_2921
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What do gymnasts have to overcome with their muscle force?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
external force
advqa_2922
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is another important variable that affects linear and angular momentum?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
time the landing takes
advqa_2923
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Gymnasts can overcome what by increasing the time taken to perform a landing?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
vertical ground reaction force
advqa_2924
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What does increasing height result in?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
higher vertical ground reaction force
advqa_2925
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Why might a gymnast increase lower body amplitude?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
perform the landing
advqa_2926
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What rises the bars with an increase of height?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
amplitude
advqa_2927
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which of the following is not a key part of increasing the time taken to perform the landing: hip, muscle, or ankle?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
muscle
advqa_2928
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How do gymnasts combat outside forces?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
muscle force
advqa_2929
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What benefits comes from more height?
A higher flight phase results in a higher vertical ground reaction force. Vertical ground reaction force represents external force which the gymnasts have to overcome with their muscle force and has an impact on the gymnasts linear and angular momentum. Another important variable that affects linear and angular momentu...
rise the bars
advqa_2930
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is not required of the athletes?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
a final routine
advqa_2931
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How are routines scored
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
for difficulty
advqa_2932
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is not part of preliminary routines: free to perform any routine or a sequence of aerial skills?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
sequence of aerial skills
advqa_2933
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which are there more of, bounces with pause or moves scored for difficulty during preliminary routines?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
bounces without pause
advqa_2934
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the gymanist routine?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
trampolining
advqa_2935
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the minimum possible score?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
zero
advqa_2936
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is different about the top competitions other than points?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
two preliminary routines
advqa_2937
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which are there more of: preliminary routines or points in the maximum score?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
points
advqa_2938
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How many additional points can be earned
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
no maximum
advqa_2939
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the equipment being used by the gymnast?
Individual routines in trampolining involve a build-up phase during which the gymnast jumps repeatedly to achieve height, followed by a sequence of ten bounces without pause during which the gymnast performs a sequence of aerial skills. Routines are marked out of a maximum score of 10 points. Additional points (with no...
trampolining
advqa_2940
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What requires great flexibility?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
gymnastics
advqa_2941
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the opposite of groups?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
individuals
advqa_2942
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is performed in the air?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
double rings
advqa_2943
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What measures level of difficulty?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
10-point scale
advqa_2944
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the opposite of individuals?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
Groups
advqa_2945
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Name one of the four seasons?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
spring
advqa_2946
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What comes before December?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
November
advqa_2947
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How many seasons are there?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
four
advqa_2948
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is different about individuals versus groups?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
For individuals, only four types of apparatus are used
advqa_2949
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What kind of rules came in the 1970's?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
The technical rules for the Japanese version of men's rhythmic gymnastics
advqa_2950
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is not excluded when there is more than one person?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
apparatus
advqa_2951
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How many points are possible?
The technical rules for the Japanese version of men's rhythmic gymnastics came around the 1970s. For individuals, only four types of apparatus are used: the double rings, the stick, the rope, and the clubs. Groups do not use any apparatus. The Japanese version includes tumbling performed on a spring floor. Points are a...
10
advqa_2952
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What does polishing fix?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
Scratches on the clear side
advqa_2953
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is found in CDs that the candidum in Belize consumes?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
The fungus Geotrichum candidum, found in Belize, has been found to consume the polycarbonate plastic and aluminium found in CDs
advqa_2954
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Why would you rather damage the non label side of a CD?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
Scratches on the clear side can be repaired by refilling them with similar refractive plastic or by careful polishing
advqa_2955
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How do CDs get ruined?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
during handling and from environmental exposure
advqa_2956
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is something that can happen to a CD in Belize?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
The fungus Geotrichum candidum, found in Belize, has been found to consume the polycarbonate plastic and aluminium found in CDs
advqa_2957
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the process of using similar plastic to repair a disc?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
refilling them with similar refractive plastic or by careful polishing
advqa_2958
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What damage occurs on the label side?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
Pits
advqa_2959
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How might steam damage a CD?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
The edges of CDs are sometimes incompletely sealed
advqa_2960
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
The plastic used to replace a clear side of a disc must be what to repair it?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
similar
advqa_2961
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Why do CDs get corroded?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
The edges of CDs are sometimes incompletely sealed
advqa_2962
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which part of the disc must be kept safest?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
label side of a disc
advqa_2963
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What can "eat" CDs?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
Geotrichum candidum
advqa_2964
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
The CDs are sometimes what that allows it to become defective?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
The edges of CDs are sometimes incompletely sealed, allowing gases and liquids to corrode the metal reflective layer and to interfere with the focus of the laser on the pits
advqa_2965
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Which side of a CD is easier to fix?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
Scratches on the clear side can be repaired by refilling them with similar refractive plastic or by careful polishing
advqa_2966
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What can happen to the edges of the disc's?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
sometimes incompletely sealed, allowing gases and liquids to corrode the metal reflective layer and to interfere with the focus of the laser on the pits
advqa_2967
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What natural organism can disintegrate CDs?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
The fungus Geotrichum candidum
advqa_2968
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How could water damage a CD specifically?
CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clea...
gases and liquids to corrode the metal reflective layer and to interfere with the focus of the laser on the pits
advqa_2969
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what is been discussed?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
CD player
advqa_2970
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How is the information stored on the disc?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
spiral pattern
advqa_2971
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what aspect of a CD is mentioned?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
polycarbonate layer
advqa_2972
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How is data placed on a disc?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
spiral pattern
advqa_2973
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How can you decipher data in the middle of a CD?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
swing arm
advqa_2974
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How far does the laser span?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
the centre to the edge of a disc
advqa_2975
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what was the last word in the passage?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
itself
advqa_2976
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What are essentially the eyes of the laser?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
light
advqa_2977
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What does the laser have that protects it?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
polycarbonate layer
advqa_2978
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What reads a CD?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
semiconductor laser
advqa_2979
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Based on the size of the wavelength, what kind of light is basically used in the semiconductor?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
infrared
advqa_2980
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What identifies the highs and lows of the light sources?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
photodiode
advqa_2981
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
How is the bouncing of rays used?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
The change in height between pits and lands results in a difference in the way the light is reflected
advqa_2982
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what is the first word in the second paragraph?
A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the dat...
change
advqa_2983
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What began on 3rd month of the 83rd year of the 20th century?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
the "Big Bang" of the digital audio revolution
advqa_2984
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What happened during the 88th year of the 20th century?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
400 million CDs were manufactured by 50 pressing plants around the world
advqa_2985
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what is the first period in time mentioned?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
March 1983
advqa_2986
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is placed into CD players to play music?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
CDs
advqa_2987
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what is the last place mentioned?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
the world
advqa_2988
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what are the first machines mentioned?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
CD players
advqa_2989
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
Who made the first CD players?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
The Japanese
advqa_2990
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what is the last period in time mentioned?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
1988
advqa_2991
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What was first released during the 85th year of the 20th century?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
Brothers in Arms
advqa_2992
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what is the first region mentioned?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
Europe
advqa_2993
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is the shape/form of CDs?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
discs
advqa_2994
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What kind of major artist was David Bowie?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
rock music
advqa_2995
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What is a CD?
The Japanese launch was followed in March 1983 by the introduction of CD players and discs to Europe and North America (where CBS Records released sixteen titles). This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopti...
digital audio
advqa_2996
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what piece of technology is mentioned last?
Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le...
Compact Disc
advqa_2997
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
What occurred in the 77th year of the 20th century?
Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le...
Sony showed the press a 30 cm disc that could play 60 minutes of digital audio (44,100 Hz sampling rate and 16-bit resolution) using MFM modulation
advqa_2998
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}
what period in time is mentioned second to last?
Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the le...
1 March 1979
advqa_2999
adversarial_qa
expert
adversarial_reading_comprehension
null
[]
{}