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how those catfish bots on dating sites work, how are they coded and implemented | [
"Bot bot = new Bot(’Tiffany’);\n\nIf(guy) { \n\n bot.swipeLeft();\n\n bot.say(’hi there stranger wan som fuq’);\n\nIf(guy.answer === ’yes plz’) {\n\n bot.say(’plis snd credit card detailz’);\n\n }\n\n} else {\n\n bot.swipeRight();\n\n}"
] |
Why are darker surfaces more reflective (like black cars vs. white cars), when a typical mirror seems very light and bright? | [
"Actually the reflection comes from the gloss layer, outside the colored layer.\n\nBut when the colored layer is light (white, yellow, etc.) its brightness makes it hard to see that reflection. When the colored layer is very dark, it doesn't interfere with your seeing the reflection.",
"There are two things occur... |
How do TV channels/shows generate revenue by views and ratings? | [
"Good show = more viewers = more companies wanting to pay for advertising spots during commercial breaks = DOLLAH DOLLAH",
"The same way we generate money by having Karma: number of viewers doesn't generate money. It does, however, make you appealing to advertisers in the same way Sex Panther Cologne by Odeon wil... |
How or why does the pole disappear in those awesome gopro videos? All I ever see is the person holding something or a fixed point on the body, but nothing is visible. | [
"One of the comments in your link mentions the insta360 camera rather than a gopro. It edits out it's own handle from the video."
] |
Why does the earth-facing side of the moon have more craters than the 'backside'? | [
"According to [NASA](_URL_0_ ) this is completely wrong. The far side has more craters, because the near side has thinner areas of crust and more extensive volcanism where lava flows \"erased\" some of the carters.",
"This isn't true, the back side is heavily cratered compared to the Earth-facing side.\n\nThe \"... |
Why are online password managers so much safer than writing passwords in a book that’s kept in a safe place? | [
"This is an example password that my password manager makes: xmJWI#Nrjmx7oXu%hLmc70mU$\\*zi9U\n\nEvery place I have a password for has a password like that (or as long and complicated as they will allow) that is unique.\n\nI change them all frequently. \n\nAre you /really/ going to make, update, remember and consis... |
Why are all negative temperatures hotter than the Planck temperature? | [
"So here's the thing:\n\nTemperature is caused by how much energy atoms have. Atoms like to move, but since they're so small you generally don't see it. The more they move the hotter they are.\n\nIf they reach a certain temperature they break atomic bonda and change phase. There are many phases of matter but the fo... |
Why do 12 hours at home fly by for me, yet 12 hours at work seems like an eternity? | [
"I’d assume its because your mind at home is occupied by leisurely activities, whereas at work you’re occupied with things that are generally not interesting to do. Therefore, it seems as if you’re spending a greater deal of time doing something at work",
"Time is relative. Most likely you're not paying attention... |
What are tears made from? | [
"They are mostly water and salt, both pulled from the blood supply by the tear glands that exude them. You will find that most things in the body use blood to move their supplies around the body."
] |
Why do airplane passengers need to turn off cellphones or electronic devices while a plane takes off/lands? | [
"Its nonsense. Its based on old avionics devices that could have radio interference , afyer that it was because \"holy shiit you never know\". but today's technology has changed the game. Did years ago.",
"The theory is that these devices could interfere with the planes communication systems, and since the landi... |
how are molecules and atoms studied? | [
"A lot of discoveries are made using very very clever experiments. Take the nuclei of the atom, how do we know it is there if we can never see it? we can take a small sample, and place it in the centre of a ring of detectors and fire particles at it. If the atom is a blob of protons/electrons (plum pudding model) t... |
why are my pasta leftovers oily when reheated | [
"The oils were originally mixed with the sauce. When you let the pasta settle, the oils and melted fat will travel to the top surface of the dish because they are less dense, much like letting a bottle of salad dressing settle until the oils form their own layer on the top.\n\nWhen reheated, the oils and melted fat... |
Why do automatic payroll systems round up or down to the nearest half hour or quarter hour? | [
"Saves the company money by paying people 8 hours when they actually clocked in at 7:57 and out at 4:03.\n\nIt's only 6 minutes a day, but that's over 26 *hours* a year. Per employee.\n\nAlso removes the incentive for employees to intentionally do this to game the clock.",
"In a lot of cases there are strict rul... |
how does medication half-life work? | [
"As the other poster mentioned, you can get down to a point where either the last molecule decomposes, is removed, or is no longer detectable. In practice, the rule of thumb is that the drug has been functionally removed from the body after about 5 half-lives."
] |
How are different forms of medication "activated" by the body when taken simultaneously? | [
"Med student here. Any medication you take by mouth is going to go through a \"first pass\" effect. It won't get fully absorbed, it gets broken down by your liver, etc so it never actually reaches general circulation in your blood.\n\n\nMany oral medications are actually 'activated' by stomach acid, the low pH make... |
What exactly is a pyramid scheme? | [
"A pyramid scheme is a money-making venture built on lies.\n\nThe guy who makes it recruits a few people for a fee, who each recruit a few more. The new recruits are the source of income for the whole company.\n\nIt's called a pyramid scheme because, like a pyramid, it has a large base leading up to a single point.... |
What does it mean that a human shares approximately 50% of their DNA with the "parent" even though all humans share over 99.9% of their DNA with each other? | [
"We as humans all share the same genes. For exampe each of us has a gene for hair, eye color, height (just for simplicity lets imagine they are all a result of one gene)\n\nEach of those genes though has different varieties. These varieties are called alleles and these are the reason why although we all have hair..... |
If you throw a cantaloupe in the air in a fast moving car, why does it go straight up and down and not backwards? | [
"Because everything in the car when you were holding it was moving (let's say) 60 miles per hour. When you throw it up, it's still moving forward at 60 miles per hour, the same as everything else in the car.",
"Its actually moving forward right along with you. When you throw something in the air while in a mov... |
Why/how does a song make you tear up (usually wistfully) even if/when it's the first time you hear it? | [
"Music causes activity in the amygdala and hippocampus, two parts of the brain intimately associated with emotional processing. \n\nSome people say we aren't actually feeling \"emotion\" in the traditional sense, but rather building up tension and experiencing relief, either good or bad depending on how your brain ... |
How does the deja-vu works ? | [
"Like most things with our brains, we don't really know. But we have some ideas.\n\nOne idea is that it's a almost kinda like a siezure, a bit of uncontrolled electrical activity (please note that having deja vu doesn't mean you have epilepsy or something similar, it's more like when you're falling asleep and then... |
The Fed cut their rate by 25 points, what does this mean for the average American & their mortgage & credit card rates? | [
"For the average american it means absolutely nothing. Zero. Nothing at all for average people. \n\nFirst of all the change was very small, and second, this is more macro economic (think \"big overall economy stuff\", not your job or buying a sandwich). It will likely have just about zero effect on each individual... |
If the light switch is on but the bulb is dead, is power still being used? | [
"It can’t be a full circuit if the bulb is broken, so no. It’s as if a switch is off and the circuit just doesn’t complete.",
"Depends on type of bulb and failure reason. CFL and LED bulbs will still consume power for the driver unit even if the light emission part of the bulb failed.\n\nIf there's no bulb at a... |
Why is it okay to eat mayonnaise - which contains raw eggs - but not cookie dough, which also contains raw eggs? | [
"Because mayonnaise has been pasteurized to remove bacteria from the raw eggs. Your cookie dough has not.",
"You can eat cookie dough fine if you make it with raw pasteurized eggs which are available by the quart at any restaurant supply. Or you can pasteurize them yourself at home."
] |
When there is a security breach that can result in identity theft, why can't the government simply issue new SINs and close down the existing ones? | [
"Because that would be a major logistical nightmare. SSNs are unique and so ingrained into the USA that being able to change it would create it's own problems that there is no process in place to handle. Not to mention that by changing a ssn could itself lead to fraud and identity theft as there is a limited numb... |
why fleas don’t infest hairy parts of humans. | [
"They do. Humans can get and carry fleas just like any other fuzzy mammal. That's how the Bubonic Plague spread, fleas and rats.",
"Fleas actually spend a significant portion of their life stage in the environment, so while they will happily infest humans you would only have 20% of the total flea population on yo... |
How do All-Female lion prides form? Can male cubs grow to be leader? | [
"There are lone males who are wandering around who challenge for leadership of prides and a vacant space will rapidly be taken by one of these."
] |
how do scientists determine the age of cave paintings? | [
"Lots of ways. \n\nIf the pigments were made from something that was once alive, then the pigments can be dated using radiocarbon dating. A certain form of carbon decays at a set rate, and since the living thing only adds carbon to itself when its alive, you can track the ratio of radioactive carbon to regular carb... |
How does the heart regulate its beat so perfectly? What is happening to this system when we have palpitations? | [
"Your heart has pacemaker cells that can actually regulate the heartbeat themselves without input from your brain. They start the electrical signal within your heart to beat, and they do so with awesome precision and rhythm. The signal then travels down your heart through a pathway made for those electrical signals... |
Does using a fan make dry eyes worse? + tips on healing dry eyes please | [
"I am living with severe dry eyes and I can’t have a fan running in the room without it making my eyes worse. Can you get a window air conditioning unit? I’m not sure there is a “cure” for dry eyes. Try using a drop with castor oil in it, that may help.",
"Hi..definitely try the eye drops often and I would sleep... |
Do we all see the same color or my red can be your blue? | [
"Most likely that we all see colors the same since we all have similar structures in our eyes and brains to receive and process visual information. However, there's no definitive way to prove it."
] |
what does that often blue tape that athletes put all over themselves do and how does it work? | [
"It's called Kinesio tape.\n\nIts supposed to support muscles and potentially improve performance and help prevent injuries and help in injury recover. I'll stop explaining what its supposed to do or how any more because of something else associated with the tape:\n\nThere's little evidence it works at all, and ple... |
If cells die of age, where do new ones come from? | [
"That gets a bit complicated because it depends on the organ.\n\nA lot of organs in your body (skin, intestine, stomach...) have a layer of cells that are capable of dividing indefinitely (well, at least until you, as a person, pass away) to keep the organ healthy. The big problem with these cells is the further al... |
why the future of the planet depends on saving the bees. What makes bees so special in nature? How do we actually save them and why are they dying? | [
"Why are they important? One world: pollination. All crops need to be pollinated to produce. A tomato plant or strawberry plant that goes un-pollinated will never fruit. Most of our food is bee-pollinated. The \"how we actually save them\" is a tricky question and \"why are they dying\" is even trickier to answer! ... |
Why can people with Alzheimer's easily remember their childhood and young adult life but not recent events? | [
"It could be that long term memories are stored in the frontal lobe of the brain and Alzheimers first targets the hippocampus, which is responsible for memory reconsolidation (the creation of long term memories from short term memories)"
] |
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