Split (1)

train · 2.03M rows

text stringlengths 255 17.6k
for National Geographic News As tech gadgetry from MP3 players to PDAs continues to evolve, the lithium- based batteries that run these power-thirsty gizmos are increasingly unable to keep up. Just think how annoying a laptop running out of juice can be. Now chemical engineers at Purdue University in West Lafayette, In...
Where did all the water go? Billions of years ago when the Red Planet was young, it likely had a thick atmosphere that was warm enough to support oceans of liquid water, a critical ingredient for life, NASA believes. Mars today is a barren desert however -- so what happened? NASA aims to solve a piece of that puzzle wi...
HIV stands for human immunodeficiency virus. HIV is the virus that causes AIDS. AIDS is a life-threatening but preventable disease. HIV attacks the body's immune system. It destroys infection-fighting cells. When these cells are destroyed, the immune system can no longer defend the body against infections and cancers. ...
Reinforce measurement and nonstandard units of measurement. Introduce concept of height, width, length and volume. Introduce different tools used to measure. Select an appropriate tool for measuring. Materials: Measuring Penny by Loreen Leedy and computer with Internet connection. Lisa has an important homework assignm...
During normal hearing, sound waves travel through the ear canal and strike the eardrum causing it to vibrate. The eardrum is attached to three tiny bones in the middle ear. The last bone, the stapes, pushes on a fluid-filled chamber in the inner ear, called the cochlea. This fluid movement causes sensitive hair cells w...
A Star with a Mystery Partner? When stars are more massive than about 8 times the Sun, they end their lives in a spectacular explosion called a supernova. The outer layers of the star are hurtled out into space at millions of miles per hour, leaving a debris field of gas and dust. Where the star once was located, a sma...
To help students learn more about what it takes to become To become familiar with names of Apollo astronauts. To use technology to locate, evaluate, and collect information. NETS Standards Categories supported 3, 5, 6 Learn how to become an astronaut Have students visit the NASA Astronaut site which covers the selectio...
Wilson thought the hot spot was located in the center of a mantle convection cell where movement was slow. The upper, faster moving part of the convection cell helped carry the Pacific Plate to the northwest. By the early 1970s, the plate tectonic theory and the presence of hot spots was generally accepted. In 1971, W....
\|+ Visit the NASA portal\| Lunar Research Station Design Challenge By the Murphy Science Research 9 Classes The Peary Crater is the closest large crater to the Lunar North Pole (88.6° N 33.0° E) that is around 73 km wide. From the Earth the crater appears on the northern lunar limb, and is seen from the side. The crater...
In music, any one of eight scalar modes employed for medieval liturgical melodies. The modal system was conceived for the purpose of codifying plainchant (seeGregorian chant); the names of the modes were borrowed from the system used by the ancient Greeks, though the Greek system was inadequately understood and the con...
A new study published today (Monday 28 May) in the journal Nature Climate Change provides insights into why and how species are moving around the globe in response to climate warming. Turning up the heat is opening up areas for animals that were previously too cold, leading to the expansion of species towards the poles...
Even prior to the oil spill, decades of over-harvesting, disease, pollution and declining habitat have decimated the massive oyster reefs that once dominated the country’s coastal estuaries. Globally, 85 percent of reefs have been lost, making oyster reefs the most severely impacted marine habitat on Earth. Because oys...
January 9, 2007 Quasars are some of the most luminous and distant objects in the universe — and appear to have something in common with ordinary light bulbs, say researchers at the University of Illinois at Urbana-Champaign and at the National Center for Supercomputing Applicatoins. Quasars were discovered 40 years ago...
Astonishing Science. Spectacular museum. Until the 17th century, most mechanical clocks, such as the one at Wells Cathedral used a foliot balance and a verge escapement to make them tick at a steady rate. The toothed wheel (called a crown wheel) is turned anticlockwise by a weight hanging from a rope wrapped round the ...
Rice is the most important food grain in Burma (Myanmar). Nearly 60 percent of the country’s total rice crop comes from the 4 states that occupy the Irrawaddy River Delta and adjacent coastline to the east, around the Gulf of Martaban. These areas suffered the worst devastation from the passage of Cyclone Nargis in ear...
for National Geographic News Organic globules found in a meteorite that slammed into Canada's Tagish Lake may be older than our sun, a new study says. The ancient materials could offer a glimpse into the solar system's planet-building past and may even provide clues to how life on Earth first arose. "We don't really lo...
In 711, less than a century after the birth of Islam, an army of Arabs and Berbers serving the Umayyad caliphs of Damascus (in Syria) landed in the Iberian Peninsula, ushering in a new phase of art and culture in the region. Within a period of seven years, most of the peninsula was under Muslim rule. These new territor...
the sequence of events and reduce the possible endgames down to one. Sure there were open questions, but mainstream cosmologists saw these as refinements. Most researchers believed in a clear-cut model of the universe that had little room for change after the first few moments of its history. Much debate was centered o...
To carry out the following reactions and classify them as Physical or Chemical changes. - Burning of magnesium in air - Sodium sulphate with barium chloride in the form of their solutions in water - Iron nail with copper sulphate solution in water - Zinc with dilute sulphuric acid - Heating of copper sulphate What is a...
At the time of the German occupation of northern and central Italy in early September 1943, there were approximately 12,000 Jews living in Rome. The German occupiers sought to include Italian Jews in the "Final Solution". The commander of the German Security Police (Sipo) and the Security Service (SD) in Rome levied a ...
Electoral Districts and the Vote Citizens on the island of Newfoundland won the right to vote and run for political office in 1832, when Britain conceded to a local reform movement and granted the colony representative government. A general election took place in November of that year, allowing eligible residents to ca...
Earth’s largest solar panel is the ocean. Around 70% of the Earth is covered in water and the tropical oceans alone collect the equivalent of 250 billion barrels of oil in solar radiation daily. That is enough energy to power the United States at its current consumption rate for over five thousand years. The potential ...
1. There are three RNA polymerases in eukaryotes. RNA Polymerase I in eukaryotes catalyzes transcription of the large rRNAs. RNA Polymerase II in eukaryotes catalyzes transcription of the mRNAs. RNA Polymerase III in eukaryotes catalyzes transcription of tRNAs and other small RNAs. 2. Note that many proteins bind promo...
Sea levels are always changing, for many reasons. Some changes are rapid while others take place very slowly. The changes can be local or can extend globally. In this introductory chapter we establish some basic ideas of sea level change before looking at the various processes involved in more detail. The first part of...
Excavation below the ash produced by the Toba volcanic eruption revealed a Middle Paleolithic, or Stone Age, layer. An ancient volcanic super-eruption, one of the largest known in Earth's history, may not have devastated the world and humanity as much as once thought. The eruption at what is now Lake Toba in the Indone...
PARIS — Scientists said Sunday they had produced the first stemcells from endangered species, a breakthrough that could potentially save dozens of animals teetering on the brink of extinction. “The best way to manage extinction is to preserve species and habitats but that is not always working,” Oliver Ryder, director ...
Marine cyanobacteria, tiny ocean plants that produce oxygen and make organic carbon using sunlight and carbon dioxide, also help feed other marine organisms, according to a new study. Cyanobacteria, which are thought to be one of the first single-celled organisms to inhabit the Earth, are said to nourish other organism...
In quantum mechanics, a squeezed state is characterized by two noncommuting observables, where one observable has a small variance at the expense of a large variance in the other, so that the uncertainty principle is satisfied. There is currently interest in preparing macroscopic squeezed states as this would improve t...
"Fall in Earth's Magnetic Field Is Erratic," published in the journal Science. The goal is to measure changes in Earth's magnetic field, generated by churning currents of molten iron that lie more than 3,000 miles below the surface. Earth's magnetic field sculpts the dancing lights of the aurora borealis, aims compass ...
Scientists who study polar ice are watching Antarctica’s Pine Island Glacier carefully. This glacier drains from the West Antarctic Ice Sheet – the largest mass of ice on Earth. In recent years, Pine Island Glacier has been draining the ice into the sea at a faster rate. EarthSky spoke to Sophie Nowicki of Goddard Spac...
Image: Corben’s Long-eared Bat Corben’s Long-eared Bat. - © Harry Parnaby This medium-sized insectivorous bat (weight about 15 grams) has very long ears and occurs in drier forest and woodland in southeastern mainland Australia, where it depends on hollows in old trees for daytime shelter and is listed as threatened. I...
Physical Disabilities Teacher Resources Find Physical Disabilities educational ideas and activities Showing 1 - 20 of 865 resources Getting to Know People with Physical Disabilities Students define the terms disability and physical disability, and discuss the various abilities of people who use wheelchairs. They listen...
Any model of Solar System formation must explain the following facts: - 1. All the orbits of the planets are prograde (i.e. if seen from above the North pole of the Sun they all revolve in a counter-clockwise direction). - 2. All the planets (except Pluto) have orbital planes that are inclined by less than 6 degrees wi...
Submitted by C.J. Johnson On August 9, 1862¸ C.S.A. General Stonewall Jackson claimed a narrow Confederate victory over General Nathaniel Banks at the Battle of Cedar Mountain, Virginia, also known as Slaughter’s Mountain or Cedar Run. During the summer of ’62, Union General George McClellan had been working his way to...
\|Yale-New Haven Teachers Institute\|\|Home\| Blacks, in the United States and Other countries in the Americas, are called Afro-Americans. Their roots are found in Africa. The focal point of this unit will show how white Europeans forced or tried to force their values on Blacks. Due to the fact that Blacks were taken from ...
William Penn, the founder of Pennsylvania and a devout Quaker, made it a policy to deal fairly with the native tribes. As a result, the traditional mistrust between natives and settlers that existed in most other colonies was not as pronounced in Pennsylvania. But by 1737, William Penn was long dead and his heirs and t...
After emitting its first significant solar flares since June 2013 earlier in the week, the sun continued to produce mid-level and significant solar flares on Oct. 27 and Oct. 28, 2013. Then, on Nov. 5, 2013, The sun emitted a significant solar flare, peaking at 5:12 p.m. EST. This flare was classified as an X3.3 flare....
- Seismic hazards and risks and how they are measured - Risk in your area = hazard + exposure + vulnerability Seismic hazards and risks and how they are measured Seismic hazards are sources of potential harm or loss during earthquakes. They can be natural phenomena, such as landslides or tsunamis, that are generated by...
Native Pollinators: How to Protect and Enhance Habitat for Native Bees Mace Vaughan and Scott Hoffman Black, Native Plants Journal The success of all restoration efforts—and indeed, of life as we know it— depends on a healthy and diverse population of native pollinators. Pollinators are critical for seed production and...
This is a volcanic "cone". Click on image for full size Courtesy of USGS There are several ways in which a volcano can form, just as there are several different kinds of volcanoes. Many of the volcanoes on the Earth's surface are part of the "Pacific Rim of Fire". During the eruption of a volcano, flowing lava and ash,...
The Federalists Terms Republican, RepublicanismThis term described a philosophy before it did a party. Republicanism held that individuals should subordinate their interests to the common good and the aim of the political process was to identify and build consensus around that common interest. As republicanism required...
Bacteremia is the presence of bacteria in the bloodstream (see also see Occult Bacteremia). Usually, bacteremia, particularly if it occurs during ordinary activities, does not cause infections because bacteria typically are present only in small numbers and are rapidly removed from the bloodstream by the immune system....
Detail of sugar cane "The story of sugar was not all sweetness. Sugar and slavery developed hand in hand in the English islands" (Dunn 1973, 189) The first European settlers in Nevis in 1628 were English farmers from St Kitts. They cleared spaces in the dense forest to create small farms, which were worked by their fam...
Goals: The student will\| - Know about the apparent motion of the Sun, Moon and planets across the sphere of "fixed" stars ("celestial sphere") and understand that the reason all these object travel along very similar paths is that the solar system is flat and disk-shaped. - Know that the Earth orbits the Sun counterclo...
© Photographer: Dan Mccauley \| Agency: Dreamstime.com Once the ionization process begins and plasma forms, a path is not created instantaneously. In fact, there are usually many separate paths of ionized air stemming from the cloud. These paths are typically referred to as step leaders. The step leaders propagate towar...
A Great Beginning Learning good manners will help your child act toward others with respect and take into account their feelings. Your child will also gain the confidence that comes from knowing the proper thing to do. As a parent, you're sure to discover it's a gradual process. While your children will put into practi...
The American Scholar by Ralph Waldo Emerson by Feross Aboukhadijeh, 12th grade Literary devices like metaphor, simile, and repetition are used in literature to convey a special meaning to the reader. Often these devices are used to make an idea clearer, emphasize a point, or relate an insight to the reader. In his famo...
Biliary atresia is a rare disease that can affect babies soon after birth. This disease destroys the ducts that carry bile from the liver to the small intestine. Bile is a fluid that helps the body digest fats. It is made in the liver and stored in the gallbladder. If the ducts cannot carry bile, the liver gets damaged...
Egyptians have believed in the afterlife since prehistoric times. After observing various natural phenomena such as the sun rising as if it was born and setting as if it was dying, then rising again the next day, the Egyptians concluded life and death were extensions of each other. Tomb preparation began long before de...
In this post, I am linking to content that I have posted elsewhere on the site. The following sessions are all related to lesson planning and design, and cover the following areas: - Writing good learning objectives / the difference between objectives and outcomes - Creating clear, measurable and achievable objectives ...
Representing waves is rather tricky because they move. When plotting them on graphs, we need to consider carefully what we are plotting it against. Those familiar with Yondu Udonta will also be familiar with his Yaka arrow, a weapon he skilfully wields with the help of one heck of a whistle (I’m going to stop there, no...
Scientific Name: Lynx lynx The lynx inhabiting Europe and Asia have recently all been reclassified as being subspecies of what is now called the Eurasian lynx. Formerly, each subspecies was classified as different species of the genus Lynx. These include the Siberian lynx (L. l. wrangelli), the Northern European lynx (...
World War II At the outbreak of World War II, de Gaulle commanded a tank brigade attached to the French Fifth Army. In May 1940, after assuming command as temporary brigadier general in the 4th Armoured Divisionthe rank that he retained for the rest of his lifehe twice had the opportunity to apply his theories on tank ...
The whales were found more than 36 metres above sea level, more than a kilometre from the ocean, in ancient sandstones in the Atacama region of northern Chile. Construction workers on the Pan-American Highway found the first skeletons. They called a nearby museum and said: We found bones. It has turned out to be one of...
One of the most famous models of instructional design is called the ADDIE model. The ADDIE model consists of five steps: Analysis, Design, Development, Implementation, and Evaluation. This model is the most popular instructional design models and is used in creating custom training solutions and education materials for...
On April 8, 1820, the celebrated English explorer William Edward Parry was icebound with his crew in the ships Griper off of Melville Island in the Canadian Arctic . They had been fixed in place for seven months while trying to find a northwest passage and the Bering Strait . They were not guaranteed to escape, and in ...
The 20th century's latter half saw the rise of women leaving the home in increasingly greater numbers to work and pay for their way in the world, establishing financial independence for themselves and fighting for equal pay, work and rights in government. Although complete gender equality continues to elude the modern ...
Shape creatures are really easy to make. They are created by tracing around some shape cards. As children engage in this Shape Creatures Activity they use many skills: - Fine motor skills are strengthened as children trace around the shapes - Eye-hand coordination is reinforced as children manipulate art materials and ...
posted by Loki . While camping by the Merced River in Yosemite Valley, a group of friends were admiring a particular tree on the opposite bank. Maria claimed that the height of the tree could be determined from the group’s side of the river by the following method: • Measure a 50 meter segment,, on this shore. • Consid...
Apache Indians were hunters and gatherers who primarily ate buffalo, turkey, deer, elk, rabbits, foxes and other small game in addition to nuts, seeds and berries. They traveled from one place to another to search for food.Continue Reading Men were responsible for hunting, and they used bows and arrows to kill their pr...
The name for Russian territory that was under the direct administration of Ivan the Terrible for a brief time during the mid 16th century In the 1560s, desertion and betrayal were so common in Russia that the Tsar announced his abdication of the throen in 1564, after one of his particularly talented field commanders de...
Here are some tricks: Read a story to your child. Begin by announcing the title. Ask your child, after hearing the title, what do they think the book is about? Do not let your child see the illustrated pages of the book. Rather, ask them to quietly imagine to themselves what is on each book page. Take your time reading...
Plants absorb nutrients as well as other chemicals through their foliage to varying degrees. Growers in most all types of agriculture apply foliar nutritional sprays from time to time for various reasons. A basic philosophy many growers utilize is to apply what is believed to be required to the soil in the fertilizatio...
Outside of St. Thomas’s Church in Leipzig, Germany stands an eight-foot tall bronze statue of Johann Sebastian Bach, the legendary 17th century composer, which was built to honor the man who is entombed inside. The monument is the result of a collaboration between an anatomist and an artist, who teamed up to craft the ...
Let's Choose Less Students will be able to illustrate an amount that is less, when compared to another quantity. Students will be able to compare quantities and determine which has less. Introduction (10 minutes) Before starting the lesson, write the numbers 1-6 on the six index cards. - Show your class your puppet, an...
“Teachers play a vital role in enabling students to achieve good learning outcomes within effective education systems. While their ability to positively shape a child’s learning experience depends on a myriad of factors, the first step toward good learning outcomes is to ensure that there are enough teachers in classro...
The word “pigeon” evokes thoughts of gentle cooing, fluttering in rafters, and poo-encrusted statues. The species responsible for the encrustation is deeply familiar to us, having ridden waves of European expansionism to inhabit every continent, including Australia. First domesticated thousands of years ago, urban pige...
The planet Uranus is an oddball. Unlike all of the other planets in our Solar System, it spins on its side! This means that if you were on Uranus you wouldn’t see daytime and nighttime in a day like you see on Earth, as its spin doesn’t affect which parts of the planet see the Sun. Astronomers had thought that Uranus w...
A brief background of Chief Joseph: The leader of one band of the Nez Perce people, Chief Joseph was born Hin-mah-too-yah-lat-kekt in 1840 in the Wallowa Valley in what is now Oregon. His formal Native American name translates to Thunder Rolling Down a Mountain, but he was largely known as Joseph, the same name his fat...
On this page you will find freely downloadable resource packs, for use in the history classroom. These packs have been developed with history teachers, to encourage the use of material held in our collection. The materials here will be useful in two ways – firstly to help teachers and pupils explore the content of the ...
During war, strategic resources are in short supply and items such as aluminum and steel are vital elements when constructing military or naval equipment. To help overcome this limitation, England and her allies encouraged their engineers and scientists to come up with alternative construction materials that could with...
The first ever prototype of Davy’s miner’s safety lamp. Created in 1815, it was designed to be lit safely for miners to use without allowing the heat from the flame to explode the concentration of methane gas often found as miners dug deeper. Following a number of serious explosions in North East coal mines due to pock...
The goal of this work is to turn the colorful snake into a golden snake by counting to ten! Let’s explore. Addition Snake Game The game has three different components which are organized by colored boxes in a single tray. The black and white box houses the Black and White Bead Stair. Multicolored beads are in the red b...
Drag and drop Drag and drop is a very powerful, convenient, and intuitive mechanism for doing simple manipulations of objects (files, programs, etc.) in a computer operating system using a mouse and a graphical user interface (GUI). It uses the common metaphor of picking an object up and carrying it someplace. The way ...
British Mandate for Palestine (WW I to 1948) - It was in the early years of the 20th century that Palestine started to become the troubled spot of differing political interests and challenging territorial claims. The Ottoman Empire was at its hinges and the European powers were digging their feet firmly in the Mediterr...
Perched atop the Atacama desert in northern Chile, the Atacama Large Millimeter/submillimeter Array (ALMA) is known for peering deep into the cosmos. Revealing distant galaxies and the birth of planets orbiting far away stars. Now, scientists are expanding what ALMA looks at. Instead of the faintest objects billions of...
When you were a child, learning your native language, were you translating? Unless you were raised in a multilingual household, chances are you weren’t. Children acquire language by directly associating the object with the word, because they have no other vocabulary to translate! The goal of the Spanish program at ICS ...
Velocity and Speed If we measure the time it takes for an object to move from one point to another we can determine how quickly it is moving. In everyday language, speed and velocity are often used interchangably but in physics they have a precise meaning. From the last section we learnt about distance and displacement...
The period of the early nineteenth century is known as the time and so-called flourishment of slavery. It was the touchiest subject which can be brought up and discussed. Many people from the north were absolutely against this, but lots in the south couldn’t imagine their lives without this. The Amistad case causes the...
Monsoons are like giant sea breezes that lead to sharply seasonal precipitation patterns throughout the tropical and subtropical regions of our planet. During summer, landmasses heat up more and faster than the adjacent ocean, pulling air laden with moisture toward the continent. During winter, surface winds reverse, a...
The word “laser” is an acronym for Light Amplification by Stimulated Emission of Radiation. Lasers are used for a wide variety of purposes, including storing data on discs, cutting through materials, and even just pointing at things. Here are two common types of lasers and how they work. Gas lasers consist of a tube of...
WHAT IS A COCHLEAR IMPLANT? A cochlear implant is a small, complex electronic device that can help to provide a sense of sound to a person who is profoundly deaf or severely hard-of-hearing. The implant consists of an external portion that sits behind the ear and a second portion that is surgically placed under the ski...
This exhibition deals with the story of the Cultural heritage along the Western Front during World War I, especially with the following themes: • Cooperation and rivalry in art history and archaeology before the war. • Endangered Monuments, Archaeological sites and Museums at the outbreak of World War I: When the war b...
Members of Ciliophora move by use of cilia, small threadlike extensions of their cytoplasm that beat to push them through water. The phylum is named for this feature. Some members have modified cilia to aid in feeding as well, and these are sometimes fused into sheets for additional efficiency.Continue Reading There ar...
We say our city’s name on a daily basis - yet how often do we stop to think about its origins? Peterborough began as a Saxon settlement. The Saxons built a village called Medehamstede, “place of the spring by the river”. Around 655AD an abbey was built next to it. The abbey was plundered by the Danes in 870 and was the...
Dyslexia is a learning disability that causes an individual to struggle with reading and writing. It can also affect other areas of a person’s life: focus, memory skills, and organization. When you understand how to teach a dyslexic child, you can help build their self-awareness as well as their cognitive skills by usi...
Speed of Light Demonstration by the Foucault Method PARTICLE Summer Workshop In the mid-19th century, French physicist Leon Foucault made the most accurate measurement to-date of the speed of light using a laboratory-sized apparatus consisting of rotating and fixed mirrors. This method was subsequently improved upon in...
The system by which a refrigerator removes heat from the freezer and refrigeration compartments and disposes of it outside your unit relies on the concept of convection. Convection is the process of heat transfer through the movement of matter, usually a gas or a liquid. In a refrigerator, convection occurs through the...
an ambitious project funded by the department of energy hopes to restore vision to people blinded by diseases that have damaged the retina, such as macular degeneration and retinitis pigmentosa. in these cases, the eye has lost its photoreceptors, which receive images, but it still retains the neural paths that transmi...
School Health Guidelines to Promote Healthy Eating and Physical Activity Schools play a critical role in improving the dietary and physical activity behaviors of children and adolescents. Schools can create environments supportive of students’ efforts to eat healthy and be active by implementing policies and practices ...
Solar panels are cheaper than ever these days, but installation costs can still be considerable for homeowners. More efficient solar panels can recapture the cost of their installation more quickly, so making panels that are better at converting sunlight into electricity is a key focus of solar research and development...
With the Iceland’s volcanoes in the news you may be wondering how volcanoes work. The Virtual Library has many online resources to help you learn more about volcanoes. Here are a few resources to get you started: - Credo Reference – Earth’s Volcanoes and Eruptions: An Overview from the Encyclopedia of Volcanoes - Credo...
The newly discovered species Tyrannosaurus rex is one of the most well-represented of the large theropods that lived 75 million years ago. These species had a nerve which had a developmental history of changing into wildly different ‘sixth senses’. The nerve is located on its nose that helps it to investigate the sligh...
In ancient India there developed a social system in which people were divided into separate close communities. These communities are known in English as caste. The origin of the caste system is in Hinduism, but it affected the whole Indian society. The caste system in the religious form is basically a simple division o...
Early Literacy Skills Early Literacy & Language Language and literacy development begins at birth and provides the foundation for a child’s success in school. It encompasses the skills related to listening, speaking, reading, and writing. Early literacy skills are defined as the knowledge, skills, and attitudes that co...
Ray optics(geometrical optics) concerns itself with particle nature of light and is based on - rectilinear propagation of light and - the laws of reflection and refraction of light. It explains the formation of images in mirrors and lenses, the aberrations of optical images and the working and designing of optical inst...
On this day in 1973, President Richard Nixon declares that America’s energy requirements have outpaced its production capacity and urges Congress to pass Senate Bill 1081, which would authorize the construction of a pipeline to access oil from the North Slope of Alaska. Nixon claimed the nation’s “dangerous reliance” o...
Earth was recently visited by a large asteroid, first discovered in 1998 and ironically given the name Asteroid QE2. As this page from the NASA website explains, the asteroid made its closest approach to earth (until it returns in another 200 years) on May 31 at 1:59 in the afternoon, Pacific time (4:59 pm Eastern / 20...
Much of my research looks at reconstructing the behaviour of non-avian dinosaurs: animals that have been extinct for some 66 million years and are represented only by fossils. This statement alone is often enough for people to either ask how on Earth this is possible, or to state quite baldly that it must all be made u...
Ear Tubes 101 Does your child suffer from multiple ear infections? If repeated courses of medications haven’t worked, there is a simple operation that is highly effective at helping children who suffer from these repeated ailments: ear tubes. What are ear tubes? Ear tubes are tiny cylinders, usually made of plastic or ...

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.