Why are Nuclear reactors never built in Water or below water? |
- Why are Nuclear reactors never built in Water or below water?
- If a person is deaf does the brain continue to run auditory processing on a "null audio feed" or is that part of the brain shut off or get repurposed for something else?
- What causes these vertical lines that sometimes come stretching out of the top of a flame?
- I had a very cold but totally liquid bottle of water in my refrigerator. When I took it out and chugged it a plug of slush formed in the mouth of the bottle. What were the physics behind that occurrence?
- How fast do you need to travel to "chase the sunset"?
- Is there a stationary center of the universe?
- Why have we evolved the ability to smell very specific chemicals we would never have been exposed to during our evolution?
- How fast could we travel before cosmic microwave background would blueshift enough to fry the spaceship?
- What causes the Earth to spin on its axis?
- How fast would I have to launch a radio for the Doppler effect to allow me to see the radio waves?
- Stars collapse once they start producing iron at their core. How much iron would I need to throw into the sun to kill it?
- What are the differences in safety and structural integrity in a car with 'suicide doors'?
- Why is it that, if you add any sequence of numbers like this (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1), the sum is always the square of the largest number?
- What particles can we smash in the LHC? What particles can we not smash? And could we smash antimatter?
- How come when my download speed doubles is doesn't cut the download speed by half.
- Can a transplanted appendage heal tissue/bone and grow nails/hair?
- Are there any experiments involving lab mice that have had hugely different results when testing on other animals and/or humans?
- [Biology] Can a cell that doesn't typically divide be stimulated in some way to divide?
- Difference between compacted snow and ice
- Studies show that sleep makes you learn better overall, but how does this relate to time lost sleeping instead of studying?
- Do almost all land mammals have tails? What land mammals don't, other than primates?
- [Kinesiology] Is there any science behind working out according to your blood type?
- Do people in colder environments have higher caloric demands?
- Are there any human-borne diseases that are of little harm to us but become deadly and infectious when transferred to other species? (similar to smallpox, the plague, tuberculosis, etc.)
| Why are Nuclear reactors never built in Water or below water? Posted: 02 Dec 2015 05:19 PM PST If water stops radiation and also keeps contained the fuel rods why don't we just build entire plant's under water? Would a meltdown be much more survivable if it was under 20 feet of water? Oh what about underground reactors? Edit: Thanks for the response so far :) But another issue is why not deep under ground such as in deep cave systems where a space has been created or in mountain where it can provide additional shielding? Basically why build it where they are built right now? [link] [515 comments]  |
| Posted: 02 Dec 2015 06:44 PM PST |
| What causes these vertical lines that sometimes come stretching out of the top of a flame? Posted: 02 Dec 2015 03:40 PM PST Picture (imgur direct link) for reference. I've seen this before and always found it strange. I took a picture in part to rule out it being something to do with my eyes/brain. A few minutes of googling didn't get me any information at all. The lines don't always appear, don't always appear in the same size/place/configuration and more often than not seem to disappear over time. I can't imagine what it could be - difference in local atmospheric pressures or oxygen ratios don't seem like they could explain straight vertical lines. Thanks in advance both to mods & commenters. [link] [52 comments]  |
| Posted: 03 Dec 2015 04:55 AM PST |
| How fast do you need to travel to "chase the sunset"? Posted: 02 Dec 2015 05:27 PM PST If you were traveling around the globe and wanted the sun to remain relatively stationary right above the horizon, how fast would you be traveling? [link] [61 comments]  |
| Is there a stationary center of the universe? Posted: 02 Dec 2015 07:36 PM PST Every time we are talking about velocity of something, it's relative to some other thing. And actually nothing is standing still everything is moving relatively. But I wonder if there is an absolute reference point of the space. I consider about big bang. It started from a single point and universe continued to expand. It's still expanding and galaxies are moving away from each other. Is there a center of this expansion? [link] [70 comments]  |
| Posted: 02 Dec 2015 03:01 PM PST As a chemist, I am constantly amazed by the variety of different chemicals that are identifiable by their very distinctive odors. It makes sense why we evolved the ability to smell things that might have been relevant to our survival, like rotting meat, or acetic acid (rotting fruit), fruit esters, smoke, cooking food, etc. But some chemicals have a very distinct smell that doesn't resemble anything that I might expect to find in the wild. For example, xylenes (magic marker smell) are very easy to identify by smell, and are structurally dissimilar to anything I would expect to find in nature in any amounts. Is this merely an accident of our evolution, or does it imply that the ability to easily identify xylene by smell gave some advantage to our ancestors? [link] [16 comments]  |
| Posted: 03 Dec 2015 06:26 AM PST Additional question, with time dilatation we can travel arbitrary large distance in arbitrary short time. What distance could a spaceship travel in, lets say 1 year experienced by the crew (ignoring aceleration / deceleration) while going with the maximum "safe" speed from the main question? [link] [2 comments]  |
| What causes the Earth to spin on its axis? Posted: 02 Dec 2015 03:54 PM PST |
| How fast would I have to launch a radio for the Doppler effect to allow me to see the radio waves? Posted: 02 Dec 2015 03:17 PM PST |
| Posted: 03 Dec 2015 05:34 AM PST Bonus questions: Is this even possible and would another element work better? [link] [5 comments]  |
| What are the differences in safety and structural integrity in a car with 'suicide doors'? Posted: 02 Dec 2015 03:10 PM PST |
| Posted: 01 Dec 2015 10:20 AM PST I was doodling around with my calculator in trig during high school several ago, and found this pattern. I forgot about it entirely until I was nodding off to sleep last night, and now I must know. [link] [960 comments]  |
| Posted: 02 Dec 2015 09:30 PM PST I don't really know much about particle physics at all. But I know that the LHC can collide protons. Why not antiprotons? [link] [6 comments]  |
| How come when my download speed doubles is doesn't cut the download speed by half. Posted: 02 Dec 2015 04:01 PM PST Basically I jump in download spped from 2 megabytes a second to 4 but it only cut the 20 minute time down by like four minutes to 1 minutes. Why does this happen. [link] [14 comments]  |
| Can a transplanted appendage heal tissue/bone and grow nails/hair? Posted: 02 Dec 2015 02:57 PM PST I was learning about limb transplants in my bio class today, but I don't think my teacher knew much beyond the videos he showed us. [link] [2 comments]  |
| Posted: 02 Dec 2015 01:03 PM PST Lab mice are used in all sorts of studies of medicine, psychology, biology and others. I am just curious if there have been any results when studying mice that have had a completely different result when that study or test was performed on another animal. [link] [6 comments]  |
| [Biology] Can a cell that doesn't typically divide be stimulated in some way to divide? Posted: 02 Dec 2015 03:54 PM PST Neurons and red blood cells do not divide regularly, but is there some way a cell that doesn't multiply can be spurred on to do so? [link] [3 comments]  |
| Difference between compacted snow and ice Posted: 02 Dec 2015 05:15 PM PST I have someone who thinks compacted snow and ice are the same thing. I've tried explaining that when chemicals that are the same but undergo different processes, they become separate things. I guess I need it more simplified. Is compacted snow and ice the same? [link] [4 comments]  |
| Posted: 02 Dec 2015 03:05 PM PST Correction for title: *more sleep over less makes you learm better. Like, at what points is one more needed, if ever? Is 8 hours sleep and 5 hours studying better than 5 hours sleep and 8 hours studying? Is the time spent sleeping ever better for learning over lost studying time? I'm thinking strictly learning, not well-being, social functions and feeling tired. [link] [2 comments]  |
| Do almost all land mammals have tails? What land mammals don't, other than primates? Posted: 02 Dec 2015 03:55 PM PST |
| [Kinesiology] Is there any science behind working out according to your blood type? Posted: 02 Dec 2015 03:51 PM PST |
| Do people in colder environments have higher caloric demands? Posted: 02 Dec 2015 12:04 PM PST If you're living in a colder environment, does your body need to burn more calories to keep you warm? Is this difference in caloric needs significant enough that people in colder climates need to eat more food that those in warmer ones? [link] [2 comments]  |
| Posted: 02 Dec 2015 09:20 AM PST I was watching this GCP Grey video that said that fast-acting infectious diseases are of little harm to the species they originate from, but become deadly when transferred to humans (@4:30 in the video). I was wondering if the reverse is ever true- a disease is no big deal for humans, but is highly deadly and infectious for another species. What are those diseases and how do they impact animal species? [link] [4 comments]  |
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