When experiencing Sleep Paralysis some people feel like they can't move while others instead are met with a feeling of deep fear. What is the cause of that? |
- When experiencing Sleep Paralysis some people feel like they can't move while others instead are met with a feeling of deep fear. What is the cause of that?
- If the fusion reactions in stars don't go beyond Iron, how did the heavier elements come into being? And moreover, how did they end up on earth?
- What are the differences in brain function between someone in a coma and a person who is just sleeping?
- If bleach kills 99.9% of germs, what kind of spooky stuff is surviving in bleach?
- If you where to place a Newton's cradle in a vacuum would it go on forever? Or would gravity still slow it down?
- Is there any material that absorbs all sound waves like vantablack does for light?
- Why do the planets seem to be semi-limited to one plane? Why do some planets not orbit “upwards” around the sun?
- Is the energy of an EM pulse conserved in an expanding universe?
- How do astronomers pick up signals from the early universe?
- If a nuclear bomb would go off in mid air, what shape would the "mushroom" be ?
- What happens to the Pacific Islands if the ice caps continue to melt? Will they be swallowed by the sea?
- Why does northern Canada look so strange on Google Maps?
- What Makes Someone Have A Better Memory Than Somebody Else?
- How does a flashbang grenade produce the “flash” effect?
- The does the piece of ice that's dropped down a bore hole make the strange sound towards the end?
- Why is Newtonian mechanics the most widely taught version of classical mechanics in the school room?
- How do warm blooded animals maintain a stable internal temperature?
- What is the difference between Inertial Confinement Fusion and Magnetic Confinement Fusion? Which one is preferable?
- Why is time measured with vibrations of the cesium atom?
- Is the decreasing magnitude of the South Atlantic Anomaly magnetic field related to the upcoming core pole switch?
- What determines the length of a species’ average life span?
| Posted: 02 Mar 2018 01:51 AM PST I've known people with sleep paralysis where they dreamed they couldn't move and panicked in their sleep, and others who instead felt they were too afraid to move while dreaming. Are those two distinct versions of Sleep Paralysis or one and the same? And what causes the intense crippling fear? I'm talking about fear to move before even attempting to do so. [link] [comments]  |
| Posted: 01 Mar 2018 10:08 AM PST I know the stellar death occurs when the fusion reactions stop owing to high binding energy per nucleon ratio of Iron and it not being favorable anymore to occur fusion. Then how come Uranium and other elements exist? I'm assuming everything came into being from Hydrogen which came into being after the Big bang. Thank you everyone! I'm gonna go through the links in a bit. Thank you for the amazing answers!! :D You guys are awesome! [link] [comments]  |
| Posted: 02 Mar 2018 05:36 AM PST Other than the obvious "sleeping people wake up" are there any differences in brain signals or waves in a coma patient as opposed to me when I'm asleep? (Extra props for explaining someone's brain function while they're knocked out (like from a fight)) [link] [comments]  |
| If bleach kills 99.9% of germs, what kind of spooky stuff is surviving in bleach? Posted: 01 Mar 2018 04:54 PM PST |
| Posted: 02 Mar 2018 05:43 AM PST |
| Is there any material that absorbs all sound waves like vantablack does for light? Posted: 02 Mar 2018 02:18 AM PST Are soundproofing materials even able to be as effective as vantablack? I know that sound deadening foams and stuff exists but from what I've had experience with they only muffle it at best. [link] [comments]  |
| Posted: 01 Mar 2018 06:45 PM PST |
| Is the energy of an EM pulse conserved in an expanding universe? Posted: 02 Mar 2018 06:14 AM PST Lets say I create an EM pulse with a specific total energy (and therefore also a specific number of photons at a specific wavelength) and let it propagate for billions of years through a vacuum. If I were then to measure the total energy of my pulse, would it be the same? [link] [comments]  |
| How do astronomers pick up signals from the early universe? Posted: 02 Mar 2018 02:02 AM PST I understand they travel at the speed of light and are from far away, hence they are from billions of years ago , but if matter expands at less of the speed of light then shouldn't those signals have gone past us long ago ? [link] [comments]  |
| If a nuclear bomb would go off in mid air, what shape would the "mushroom" be ? Posted: 02 Mar 2018 05:12 AM PST I guess the mushroom shape everyone knows is also caused by the fact that the explosion occurs at ground level (or close below). If there is no restriction in any direction, what shape would the cloud have? Would there be two mushrooms? Would it be a sphere? If this is to... childish, please point me to the correct subreddit. [link] [comments]  |
| Posted: 02 Mar 2018 07:06 AM PST I just recently found out through a DNA test that my father's family is from Guam. I had a dream last night that I was there and the ocean swallowed the island.... which got me thinking... [link] [comments]  |
| Why does northern Canada look so strange on Google Maps? Posted: 01 Mar 2018 06:35 PM PST This is what I'm referring to. A lot of northern Canada appears to have this same texture on Google Maps. Why does it look like that? What does that kind of geography look like up-close/in-person? [link] [comments]  |
| What Makes Someone Have A Better Memory Than Somebody Else? Posted: 02 Mar 2018 02:09 AM PST |
| How does a flashbang grenade produce the “flash” effect? Posted: 02 Mar 2018 07:20 AM PST |
| The does the piece of ice that's dropped down a bore hole make the strange sound towards the end? Posted: 02 Mar 2018 07:08 AM PST Video for reference: https://twitter.com/peter_neff/status/968911225919700992 [link] [comments]  |
| Why is Newtonian mechanics the most widely taught version of classical mechanics in the school room? Posted: 02 Mar 2018 06:33 AM PST I recently discovered there are various forms of mechanics that basically get to the same conclusions using different notations and operations. Newtonian, Hamiltonian, legrangian, routhian, Euler, etc. My understanding may be incorrect, but from my research it seems all of the smartest scientists and mathematicians in the old days basically came up with the same thing, only Newton typically gets the credit. Why is Newtonian the version most taught in schools, and why do the other not even appear in basic physics textbooks? [link] [comments]  |
| How do warm blooded animals maintain a stable internal temperature? Posted: 01 Mar 2018 04:39 PM PST I know that humans maintain a universal body temperature (like 98 F), is this the same for all warmblooded animals? Or do other animals have a wider range? Also how is this heat generated, especially for humans because if 98 degrees Fahrenheit is our internal temperature, why is 75 F considered comfortable? Why is 98 F not considered comfortable? (sorry if this seems sporadic, my mind has trouble focusing) [link] [comments]  |
| Posted: 01 Mar 2018 04:51 PM PST |
| Why is time measured with vibrations of the cesium atom? Posted: 01 Mar 2018 07:24 PM PST from Wikipedia: SI unit of time = "The duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom." What does the "hyperfine level of ground state" mean? Why is it relevant? [link] [comments]  |
| Posted: 01 Mar 2018 11:35 AM PST The Southern Atlantic Anomaly (SAA) describes an area around South America where the geometry of the Van Allen belt leads to a significantly higher area of background radiation. According to some graphs of the field strength, the Van Allen effect appears to be decreasing in a nearly linear fashion over time at a rate of about 0.25 µT/decade (2.5 mGauss/decade). I was wondering if it could be related to the flux within Earth's core, since it is expected to flip poles "soon" (on a geological timescale). This article discusses the changes and suggests that the loss in intensity is related to the increasing area of the field, not of the strength itself. I had never heard of the SAA until recently and was intrigued. [link] [comments]  |
| What determines the length of a species’ average life span? Posted: 01 Mar 2018 05:40 PM PST Has science determined what determines the average life span of a species? For example, why do tortoises live 100+ years and dogs live only 10-15 years? [link] [comments]  |
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