How do we know the population of deep sea fish? |
- How do we know the population of deep sea fish?
- P-47 Thunderbolt Propellor Damage. What would this do in flight, if anything?
- "Photons" of different EM spectrum?
- Absent of some form of abuse, is asexuality scientifically supported as a fixed or innate condition?
- How is lightning hotter than the surface of the sun?
- What does the theory of relativity say about earth's revolution (or any planets in our solar system) around the sun?
- Do babies that are born via C-section have a lower immune system versus babies that are born vaginally?
- Can two planets orbit each other eternally?
- After beta decay, what happens to the electron if it has very little (none at all) energy?
- Is there a difference between people for what is considered "fever"? If so, how does this work?
- Can you "stop" a photon?
- If I were to chop down a 500 year old living tree and then radio 14 carbon date the center and outer rings, would the results be same?
- Will a solid eventually "evaporate" given sufficient time, like a liquid sitting at room temperature will?
- Does momentum increase once top speed reached?
- Why is the sound barrier an aerodynamic problem?
- Is there a maximum theoretical strength that a material can have ?
- Does air have a measurable surface tension?
- How can we know so much about planets and bodies light years away, when we just learned new things about Pluto with the arrival of New Horizons?
- Probability behind a Plinko board?
- Would it be possible to calculate the spin of a round object; like a planet or an atom, by shinning a light at it and using the doppler effect?
- Why are certain allergies more common than others?
- Why can't an object escape a black hole if it's thrown in with a starting velocity?
- Does the surface area of water in a cup have the same curvature as the earth?
| How do we know the population of deep sea fish? Posted: 05 Mar 2016 05:45 PM PST People bring up that the bottom of the ocean is less known than the surface of the moon, and yet, when I go to the Wikipedia page for Frilled Sharks, I see that it's classified as 'near threatened'. How do we know the population of such a deep sea species well enough to term it 'near threatened'? [link] [comments]  |
| P-47 Thunderbolt Propellor Damage. What would this do in flight, if anything? Posted: 05 Mar 2016 03:09 PM PST Hey r/askscience, I saw this picture on another sub and was curious what effect this would have in flight, if anything at all. Also let's say, hypothetically, that if he could eject the damaged propellor blade, what effect would that have in flight also? Thanks! Here's the Picture: http://ichef-1.bbci.co.uk/news/976/cpsprodpb/176A8/production/_88521959_fre_009553.jpg [link] [comments]  |
| "Photons" of different EM spectrum? Posted: 05 Mar 2016 08:11 PM PST If photons are particles of light (visible light? correct me if I'm wrong), do photon equivalents of x-ray or gamma exist? [link] [comments]  |
| Absent of some form of abuse, is asexuality scientifically supported as a fixed or innate condition? Posted: 06 Mar 2016 05:18 AM PST Question 1: There's a substantial amount of evidence(as far as I know) that points to homosexuality as an enduring trait in humans based on either genetic or epigenetic factors. Does the existing research support the idea that asexuality works the same way? Most often, we might expect to see some practical version of this concept play out in eunuchs or those who have suffered some sort of abuse. Tumblr seems to invent sexual orientations out of thin air by tacking pre- and -suffixes together, many of which I imagine have no basis in science. Does asexuality work like this, or is there little evidence to conclude that it exists as an innate state? Question 2: I've also seen a reasonable amount of evidence to support the "sexuality is fluid" conclusion. If the answer to question 1 is 'yes,' then would this also apply to those 'born asexual,' or would they be generally immune to sexual plasticity? Could someone who is asexual absent of environmental cause(if such a thing exists) become attracted to someone of the opposite sex? I greatly appreciate any and all qualified responses. :) [link] [comments]  |
| How is lightning hotter than the surface of the sun? Posted: 05 Mar 2016 01:31 PM PST And why doesn't it cause more damage to the surrounding area if it's that hot? [link] [comments]  |
| Posted: 05 Mar 2016 11:54 PM PST |
| Posted: 05 Mar 2016 12:22 PM PST From what I understand is babies born vaginally have bacterial flora introduced into their system when travelling down the vaginal canal. Because babies born via C-section are not exposed to this bacteria does it mean that they start out with an immune system that is not as strong? If so are there treatments that babies undergo to give them a boost? [link] [comments]  |
| Can two planets orbit each other eternally? Posted: 05 Mar 2016 06:53 PM PST This is assuming they are alone in the universe. If they would eventually collide, why? [link] [comments]  |
| After beta decay, what happens to the electron if it has very little (none at all) energy? Posted: 05 Mar 2016 02:00 PM PST I am aware that electrons emitted during beta decay have a continous energy distribution with a sharp upper limit in the case that the antineutrino takes away none of the decay energy. What happens in the opposite case: the antineutrino takes away all of the decay energy, leaving none for the electron? Would it "stay" "inside" of the nucleus? What would happen to it in that case? [link] [comments]  |
| Is there a difference between people for what is considered "fever"? If so, how does this work? Posted: 06 Mar 2016 02:21 AM PST As an example, I'm currently stuck at home with flu and have just measured my temperature to be 36.8°C. Technically, that's not really a fever yet, though I do feel like I have one (e.g. feeling cold with a very warm sweater on and ~20°C inside). At the same time, my girlfriend is feeling mostly fine and has a temperature of 37°C. According to her, it's warm in here and she's just wearing a t-shirt. What's the science behind this? [link] [comments]  |
| Posted: 06 Mar 2016 01:40 AM PST Read about an experiment some time ago where the scientists succeeded in "stopping" a ray of photons in a crystal. Is this possible? [link] [comments]  |
| Posted: 05 Mar 2016 08:17 AM PST I'm asking this question because I'm wondering just how accurate radiocarbon 14 date testing really is? Does living plant matter such as wood immediately start to decay as it forms or does the process start only after it dies? [link] [comments]  |
| Posted: 05 Mar 2016 05:08 PM PST I know that the molecules in, for example, room temperature water all have different energies. Some of the particles have enough energy to escape the liquid and phase change into vapour causing the overall mass of the liquid to decrease. Does this also occur with solids, albeit at a dramatically reduced rate? Do solids even have molecules at different energies in the same way liquids do? [link] [comments]  |
| Does momentum increase once top speed reached? Posted: 05 Mar 2016 01:26 PM PST If someone is running and reaches their top speed, have they achieved their maximum momentum or does it continue to increase as they run (obviously reaching some limit) Edit: I'm thinking along the lines if someone is trying to gain momentum for a long jump, would they actually go further if they take a longer run at it or once they reach their top speed, they're really not gaining anything. [link] [comments]  |
| Why is the sound barrier an aerodynamic problem? Posted: 05 Mar 2016 09:00 AM PST Vibrations we pick up as sound can only move so quickly through a fluid (air). Fair enough. But why does aerodynamics get so tricky at that same speed? Why is it difficult for physical objects to exceed? Why did transonic speed cause such odd control difficulties for old aircraft? Why is the sound barrier a barrier for more than just sound? [link] [comments]  |
| Is there a maximum theoretical strength that a material can have ? Posted: 05 Mar 2016 09:23 PM PST |
| Does air have a measurable surface tension? Posted: 05 Mar 2016 10:56 AM PST Just curious if such a thing would be possible to measure or if it exists. [link] [comments]  |
| Posted: 05 Mar 2016 03:21 PM PST I find it so wild that we can know things like there's a planet that gets as hot as 2,000 Fahrenheit and rains liquid glass 63 light years away, when it seems like the arrival of New Horizons to Pluto, within our own Solar System, has yielded knowledge of that detail. Even things as basic as its size were found to be incorrect upon close observation, but I'm supposed to believe NASA just knows what's going on on a planet 63 light years away? I mean, I do believe them, and I trust them. It's just an odd disconnect for a dullard like myself that isn't as science-minded. For reference, the planet I was talking about is HD 189733b. [link] [comments]  |
| Probability behind a Plinko board? Posted: 05 Mar 2016 07:25 PM PST realize that there is a Bell curve distribution pattern to a "wall-free" Plinko game. What I'm curious about is if there is a certain equation that is able to calculate the probability of a chip landing in a certain slot after X amount of rows. The type of Plinko board that I have in mind is one that looks like a triangle and one where the starting point of the chip is the top vertex of the triangle. (Picture of Plinko board attached) any input would be awesome. [link] [comments]  |
| Posted: 05 Mar 2016 12:21 PM PST |
| Why are certain allergies more common than others? Posted: 05 Mar 2016 10:16 AM PST I know many people who are allergic to: Nuts, Strawberrys, Cats. But I've never heard of someone being allergic to Cucumbers for example. Why are certain allergies much more common than others? [link] [comments]  |
| Why can't an object escape a black hole if it's thrown in with a starting velocity? Posted: 05 Mar 2016 02:55 PM PST Shouldn't the object get faster, pass the event horizon, make a sort of swing by, and leave the black hole again? (Assuming there is no friction). [link] [comments]  |
| Does the surface area of water in a cup have the same curvature as the earth? Posted: 05 Mar 2016 10:17 AM PST It seems like water would be pulled down to earth at a constant rate, leaving the water in a cup with the same curvature as the water in the oceans. Any truth to this thought? [link] [comments]  |
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