Do birds, spiders, and bees learn how to build nests, webs, or hives or is it built in? |
- Do birds, spiders, and bees learn how to build nests, webs, or hives or is it built in?
- Does every man produce close to 50/50 X/Y sperm, or do some have a heavy bias?
- Why are Basalt Columns Hexagonal?
- Why is metal conductive but rubber isn't? What make something conductive
- Why is there a negative deviation of the Q wave in a QRS complex on lead 2 of an ECG?
- How is light and magnetism different in respect to different techniques to detect them?
- How does our brain store information?
- How long does it take for the energy in the food we eat to be digested and turned into ATP in cells? As an aside, how long does it take for ATP storages to replenish after depleting them - i.e. during powerlifting exercises, for example.
- Do fishes of the deep have a circadian rythm?
- Do countries (Japan, China) where a large part of the population wear face/dust masks have statistically lower occurrences of airborne illness/infections compared to countries (US) that don't wear masks?
- Why does this patch of Arizona have such a clear demarcation in color?
- What happens to the optic part of the brain when someone looses their eyes?
- Why does getting water up your nose burn?
- Is there anything functionally essential to the way the brain is shaped, aside from surface area? Say we let a human brain grow smoothly, without folding, maintaining a normal surface area. Are there any known 'computational' costs?
- Does the fine structure constant of 1/137 imply that there are only 136 possible elements that can be formed?
- What exactly does it mean when doctors refer to a contraceptive as being "99.9% effective"?
- What would walking tangential to the earths curve appear like?
- How do you date rocks? Shouldn't every rock on Earth be 4.6 billion years old?
- A news report I saw said Feb 28 was the end of “meteorological winter.” What does that mean and how is it different than regular winter?
- Can a star orbit another star?
- What species has the largest variation in size between adults?
| Do birds, spiders, and bees learn how to build nests, webs, or hives or is it built in? Posted: 08 Mar 2019 03:49 PM PST |
| Does every man produce close to 50/50 X/Y sperm, or do some have a heavy bias? Posted: 09 Mar 2019 01:17 AM PST |
| Why are Basalt Columns Hexagonal? Posted: 09 Mar 2019 02:36 AM PST I've learnt that they are made by cooling lava, but just assumed it was hexagonal due to a crystal structure of some kind. However, this article seems to say that they are formed hexagonal because that's the way lava cools. Could anyone explain why? [link] [comments]  |
| Why is metal conductive but rubber isn't? What make something conductive Posted: 08 Mar 2019 11:15 PM PST |
| Why is there a negative deviation of the Q wave in a QRS complex on lead 2 of an ECG? Posted: 09 Mar 2019 01:33 AM PST Was taught that the Q wave has a slight dip downwards as the electrical impulse travels through the septum of the heart. Idk how it's negative then since it's travelling towards the positive electrode. [link] [comments]  |
| How is light and magnetism different in respect to different techniques to detect them? Posted: 08 Mar 2019 08:01 PM PST I have a few questions and they seem to be all over the place from Physics to Biology. So some animals can detect magnetic fields, but light is an oscillating magnetic field, right? So does light interfere with magneto-reception, and vice versa? If no, why not? Why aren't my eyes affected by strong magnetic fields? [link] [comments]  |
| How does our brain store information? Posted: 08 Mar 2019 01:54 PM PST I guess this may be a little unclear. I have been looking at the process of encoding memories. Each node (memory) is reached through an association (connection) to another node. Remember things involves traveling through connected nodes until finding an idea. The strength of each association is related to how frequently and how deeply the connection is made. Right, so this is cool. I understand how memories "work," but how do we store the information as a node? In what form is it stored? Similar to a computer, which stores information in bits, which can be compiled and be usable. How do we store and compile the information? [link] [comments]  |
| Posted: 08 Mar 2019 04:03 PM PST |
| Do fishes of the deep have a circadian rythm? Posted: 08 Mar 2019 07:43 PM PST Do creatures like angler fish and the like (question not specific to angler) which live deeper than light penetrates have a 24 cycle etc. If so, what governs it, obviously not sunlight. Also, are they in sync with each other? If not, are there 'time zones' etc Thanks [link] [comments]  |
| Posted: 08 Mar 2019 04:25 PM PST |
| Why does this patch of Arizona have such a clear demarcation in color? Posted: 08 Mar 2019 11:16 AM PST I was flying over Arizona this week, and spotted this from the airplane window. The ground has a distinct change in color in a very straight line. What causes this? We thought possibly a fence or something affecting the flow of dirt, but it goes on for miles and over a large canyon. If you look closely you can also see the wind patterns on the ground continue over the color change line. (It is NOT the airplane window or photoshop.) We found it on Google maps and it's the Ha Ho No Geh Canyon area. [link] [comments]  |
| What happens to the optic part of the brain when someone looses their eyes? Posted: 08 Mar 2019 10:12 PM PST Let's say, in a terrible world where someone gets both eyes dramatically clawed from their sockets by an eagle, what would they see? There was recently a TIL post about the eyes not seeing "black" when they are closed, they experience the color "eigengrau". So what would the brain see without eyes at all? Would they see actual black or just eigengrau? Does the same apply for completely blind people? Does the optic section of the brain continue to try and process information or does it just kind of die? [link] [comments]  |
| Why does getting water up your nose burn? Posted: 08 Mar 2019 12:26 PM PST |
| Posted: 08 Mar 2019 02:42 PM PST Clearly this brain wouldn't fit inside a human skull, but let's say for the sake of argument we have a miraculous brain-in-a-vat situation that solves all obvious problems. [link] [comments]  |
| Posted: 08 Mar 2019 10:11 AM PST My understanding is probably vastly oversimplified but if the electromagnetic force is indeed 137 times weaker than the strong nuclear force, then wouldn't the repulsion of the protons in the nucleus due to the EM force overcome the attraction of the protons due to the SN force when 137 or more protons are present, therefore giving us a largest possible viable atomic number of 136? [link] [comments]  |
| What exactly does it mean when doctors refer to a contraceptive as being "99.9% effective"? Posted: 08 Mar 2019 01:39 PM PST I presume it means that if I have sex 1000 times while using it, there's the same risk of getting pregnant as if I hadn't used it. But I have no idea really and there are a lot of ways to interpret it. Can a medical professional clear this up? How safe exactly is it? One in a thousand doesn't really sound that safe. [link] [comments]  |
| What would walking tangential to the earths curve appear like? Posted: 08 Mar 2019 06:07 PM PST Note: So for the sake of the thought experiment I'm gonna assume the earth is a sphere - not technically true, but I don't believe it should materially alter the question. If you were to essentially have a long perfectly straight girder, perfectly balanced and sitting on the equator of the earth tangentially, what would it look like? Would it appear to be the steepest mountain, gaining height exponentially as the curvature of the earth fades away? I'd you were to walk it would appear to be exponential, or a linear gradient as gravity would constantly pull you towards the earth's centre? [link] [comments]  |
| How do you date rocks? Shouldn't every rock on Earth be 4.6 billion years old? Posted: 08 Mar 2019 08:55 AM PST |
| Posted: 08 Mar 2019 07:35 PM PST |
| Can a star orbit another star? Posted: 08 Mar 2019 10:19 AM PST And if so, could the combination of the two stars create a sustainable environment on a planet or planets? Can a planet orbit the star orbiting the star? [link] [comments]  |
| What species has the largest variation in size between adults? Posted: 08 Mar 2019 01:23 PM PST Talking to my buddies and we're trying to figure out what animal has the largest size percentage variation. For example a 7'0 human compared to a 5'0 human is a pretty big variation. I'm not counting dogs or any other species that humans have bred to be different sizes or abnormal genetic mutations. My guess is some sort of rodent that can be 1-6 lbs or something like that. [link] [comments]  |
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