Why do some people have good sense of direction while other don't? Do we know how the brain differs in such people? |
- Why do some people have good sense of direction while other don't? Do we know how the brain differs in such people?
- Do all electrons, protons and neutrons have the exact same mass and volume or are there slight variations?
- Which is better for thermal protection/control, light colors or dark colors?
- Marine biologists use submarines with bright lights to film deep sea creatures, many of which have very large, sensitive eyes. Are the retinas of these animals damaged by these lights, and do they try to avoid the subs?
- Why are security features in government documents and currency made to fluoresce in ultraviolet light as opposed to infrared light?
- Why is it when people are completely paralysed, the only things they can move is their eyes? What makes the eye muscles different to any other muscles?
- Why is the sky above me darker than at the horizon?
- When exercising, why do they recommend to breath in through your nose, and exhale through your mouth?
- Why do our breath stink when we are hungry?
- How do marine invertebrates, like octopuses, show up in the fossil record if they don't have bones? Wouldn't they simply decompose and leave no evolutionary record?
- What makes birds reptiles?
- Does picking 4-leaf clovers have a selective breeding effect?
- How do plants know when to start blooming?
- How far does an average atom travel in one day?
- A laser diode allows current to flow in the opposite way?
- Can you get a sun tan/burn through glass?
- What happens as we approach absolute zero and how close can we get?
- When you are in a dark room for some time, and get out into a bright room, your eyes/head hurts. What is the mechanism the causes this pain? Is it some muscle contracting next to your eyes? Is it some special pain sensor cell that has this only function (cause pain if too bright)? What is it?
- If there is a little bit of time unaccounted for in a single day and single year on earth, why didn't we just create a unit of time that would have made everything accounted for?
- Are stages of past rockets (pre-Space Shuttle Columbia) still in Low Earth Orbit as flying debris?
- Why is the green background used for special effects?
- How do we get advanced notice on earth of astronomical events like solar storms or the recent gamma ray burst?
- What are those squiggly heat waves that sometimes radiate off hot stuff?
| Posted: 28 Jul 2017 03:54 AM PDT |
| Posted: 28 Jul 2017 05:49 AM PDT If the mass of an electron is said to be 9.10938356 × 10-31 kilograms, are there electrons that weight 9.10938356001 × 10-31 kilograms or 9.10938355999 × 10-31 kilograms? Or are they all absolutly, 100%, without a doubt exactly the same mass and volume? Is there a way to tell them apart? can we know if the electron/proton/neutron that we are observing is the same one that we observed before? [link] [comments]  |
| Which is better for thermal protection/control, light colors or dark colors? Posted: 28 Jul 2017 05:56 AM PDT Videos online have said that commercial aircraft are white in order to provide thermal protection from the Sun, but the SR-71 flew much higher, thus exposed to far more radiation from the Sun than any other aircraft, and it was painted black, according to Ben Rich, for better thermal protection. So which is the true better option? [link] [comments]  |
| Posted: 27 Jul 2017 12:30 PM PDT |
| Posted: 28 Jul 2017 01:36 AM PDT A group of my friends who were Canadian were travelling abroad and I remembered seeing an image of the national passport on the site, imgur and how the pages 'glowed' in comparison to other passports so I decided to buy an UV flashlight online and sure enough we were amazed. But it brought me thinking about how more expensive ultraviolet lighting is and why would the government not cut costs by using features that fluoresced in infrared instead. Is it because of a practical issue involving science or a security issue? [link] [comments]  |
| Posted: 27 Jul 2017 05:40 PM PDT |
| Why is the sky above me darker than at the horizon? Posted: 27 Jul 2017 07:02 PM PDT |
| Posted: 27 Jul 2017 03:04 PM PDT |
| Why do our breath stink when we are hungry? Posted: 27 Jul 2017 06:31 PM PDT |
| Posted: 28 Jul 2017 02:04 AM PDT |
| Posted: 28 Jul 2017 07:52 AM PDT I am a biology major in college and it has been drilled into my brain that birds are reptiles, however many people don't agree. Surprisingly, many of these people have a scientific background. Their main argument is that birds are a completely different class from reptiles. [link] [comments]  |
| Does picking 4-leaf clovers have a selective breeding effect? Posted: 27 Jul 2017 06:06 PM PDT |
| How do plants know when to start blooming? Posted: 27 Jul 2017 07:32 PM PDT Do plant hormones have something to do with it? Is it triggered by temperature? [link] [comments]  |
| How far does an average atom travel in one day? Posted: 27 Jul 2017 11:10 PM PDT |
| A laser diode allows current to flow in the opposite way? Posted: 28 Jul 2017 06:02 AM PDT I know it works totally different from L.E.D.,but why it's called diode? [link] [comments]  |
| Can you get a sun tan/burn through glass? Posted: 28 Jul 2017 04:30 AM PDT For example if you sit inside and the sun shines on you through a window. [link] [comments]  |
| What happens as we approach absolute zero and how close can we get? Posted: 27 Jul 2017 10:32 PM PDT |
| Posted: 27 Jul 2017 06:25 PM PDT |
| Posted: 27 Jul 2017 07:15 PM PDT For example, make the second just slightly longer to fill the gap. [link] [comments]  |
| Are stages of past rockets (pre-Space Shuttle Columbia) still in Low Earth Orbit as flying debris? Posted: 28 Jul 2017 12:12 AM PDT I know that for many months, if not years, that separated rocket stages and so on will linger in LEO as flying debris, although there are exceptions to that. Is it possible that certain parts of the Saturn V that carried out the Apollo 11 mission is still in the Earth's orbit for example? Not only that, but how dangerous will space debris be in the next 50 odd-years? I've recently been watching "Planetes", which inspired this question. [link] [comments]  |
| Why is the green background used for special effects? Posted: 28 Jul 2017 12:06 AM PDT |
| Posted: 27 Jul 2017 02:17 PM PDT As far as I know, these two events travel at the speed of light, and we obviously don't have any way to transmit data faster than that. Are there precursors to these events that reliable tell us they are coming? [link] [comments]  |
| What are those squiggly heat waves that sometimes radiate off hot stuff? Posted: 27 Jul 2017 06:28 PM PDT What is happening when those squiggly "waves?" appear? For example, when grilling and you shut the lid, you can see these things radiate off the top. [link] [comments]  |
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