Why don't we force nuclear decay ? |
- Why don't we force nuclear decay ?
- How do some parts of the body know when to stop growing hair, at a certain length, like eyelashes and eyebrows?
- Could a meteor have struck Earth so hard as to dislodge soil or rocks, shoot them into the atmosphere, and spread life into space?
- What effects do muscle relaxants have on the heart, since it's also a muscle?
- Uncertainty in position allows a particle to tunnel from one position in space to another, could uncertainty in time (Energy-Time uncertainty) allow a particle to tunnel from one instance in time to another?
- Can egg born animals have twins?
- Does climate change affect the movement of tectonic plates? If so, how?
- Did the alleged discovery of metallic hydrogen in January 2017 turn out to be real?
- How can the size of a jigsaw puzzle be estimated when pulling pieces one at a time out of a bag at random, and on average how many pieces will need to be pulled before the exact size of the puzzle can be determined?
- Assuming it was ridged enough and there was enough liquid, can a straw be so long you simply couldn't drink through it?
- Why can't nuclear waste be reused?
- The dark side of the moon ?
- In a mixture containing several types of molecule, can you selectively transfer energy to only one type? (In any given mixture of molecules)
- Is it possible that life on earth has originated on more than one occasion?
- Has anyone ever made a star chart not from Earth's perspective, Alpha Centauri A for example? How much would it differ from Earth's chart?
- Are there elements elsewhere in space that don't appear on earth?
- In Rutherford's gold foil experiment, how we're the alpha particles fired at the foil?
- Is the accretion disc around a black hole an actual flat disc?
- Why are erupting volcanoes always shaped like mountains?
| Why don't we force nuclear decay ? Posted: 12 Sep 2017 03:43 AM PDT Today my physics teacher was telling us about nuclear decay and how happens (we need to put used uranium that we cant get anymore energy from in a concrete coffin until it decays) but i learnt that nuclear fission(how me make nuclear power) causes decay every time the uranium splits. So why don't we keep decaying the uranium until it isn't radioactive anymore? [link] [comments]  |
| Posted: 11 Sep 2017 04:48 PM PDT |
| Posted: 11 Sep 2017 09:59 PM PDT |
| What effects do muscle relaxants have on the heart, since it's also a muscle? Posted: 11 Sep 2017 12:54 PM PDT |
| Posted: 11 Sep 2017 06:22 PM PDT If it could happen in some way analogous to standard quantum tunneling, there'd have to be some sort of confinement in time, though I'm not sure what could even mean. [link] [comments]  |
| Can egg born animals have twins? Posted: 11 Sep 2017 06:23 PM PDT |
| Does climate change affect the movement of tectonic plates? If so, how? Posted: 11 Sep 2017 09:15 PM PDT |
| Did the alleged discovery of metallic hydrogen in January 2017 turn out to be real? Posted: 12 Sep 2017 04:39 AM PDT I remember reading about it and it was all over the news for a few days. There was some debate over whether or not they'd really discovered metallic hydrogen or not, and the scientists said they'd do follow up experiments and know for sure in a few weeks. Other scientists said they were going to replicate the experiment themselves anyway and find out in a few months, and then nothing seems to have happened in the 8 months since. [link] [comments]  |
| Posted: 11 Sep 2017 04:45 PM PDT If the pieces from a rectangular jigsaw puzzle of an unknown piece count are emptied into a bag and then pulled out one at a time at random, with an estimate on the total number of pieces in the puzzle being made after each piece is revealed, how should that estimate be calculated using the following information?
On average, how many puzzle pieces will it take before we can say with certainty the size of the puzzle? Assume the puzzle has no picture on it to help place the pieces, and that the pieces are laid out in the typical jigsaw puzzle format, with each piece being roughly the same size as all the others and the pieces arranged in a grid pattern with no duplicate pieces. Also, I'm sure the aspect ratio of the puzzle makes a difference, but I'm not sure how it would affect the process so I'll leave that open. [link] [comments]  |
| Posted: 11 Sep 2017 12:16 PM PDT |
| Why can't nuclear waste be reused? Posted: 11 Sep 2017 02:15 PM PDT From my understanding, uranium in a reactor decays into thorium, so why can't that process be redone until you get a stable element like lead (the end of the actinium chain) [link] [comments]  |
| Posted: 11 Sep 2017 11:04 PM PDT Have we ever had pictures of the other side of the moon and if not why? Surely a probe could have gotten pics with the sun facing the other side. [link] [comments]  |
| Posted: 11 Sep 2017 03:04 PM PDT In spectroscopy, certain atoms or certain chemical bonds are known to absorb certain wavelengths of electromagnetic radiation. Does this extend to a larger scale? Do entire chemical structures have characteristic EM absorbances that might be used to selectively transfer energy to them in a mixture? Aside from EM waves, is there any other phenomenon in physical chemistry that could selectively transfer energy to them? A theoretical example of what I mean is having a glass of orange juice and using a beam (e.g. certain wavelength of light) that only interacts with vitamin C molecules without interacting with the remaining sugars, proteins, etc. [link] [comments]  |
| Is it possible that life on earth has originated on more than one occasion? Posted: 11 Sep 2017 12:13 PM PDT Today, I started wondering if its possible that life has originated multiple times. We often say that all life evolved has evolved from one common ancestor, but is it possible that there is more than one? For example, there is a common ancestor for all archaea, and a different one for eukaryotes, etc. [link] [comments]  |
| Posted: 11 Sep 2017 08:14 AM PDT |
| Are there elements elsewhere in space that don't appear on earth? Posted: 11 Sep 2017 12:38 PM PDT My history teacher was talking today about how Galileo determined that heavenly bodies are composed of the same materials as what appears on earth, not ether, as was previously believed. It just got me thinking about how, definitely the planets/stars are made of the same elements that occur on earth, but are there any elements that are exclusive to them that don't appear here? And if not, how did we discover that fact? Thanks in advance! [link] [comments]  |
| In Rutherford's gold foil experiment, how we're the alpha particles fired at the foil? Posted: 11 Sep 2017 07:37 PM PDT |
| Is the accretion disc around a black hole an actual flat disc? Posted: 11 Sep 2017 09:31 AM PDT Is it somewhat similar in shape to Saturn's rings or is it a sphere at/just outside the event horizon the ? If a disc, is it aligned with the B.H. rotation plane? If not, what is it aligned with, the plane of the system it's ingesting matter from? Does it make a difference if it is a rotating or non-rotating B.H.? Are there any non-rotating black holes? [link] [comments]  |
| Why are erupting volcanoes always shaped like mountains? Posted: 11 Sep 2017 01:34 PM PDT As in, why doesn't magma come out of the earth at any old tectonic fault line? And why don't we find a ton of "young" volcanoes that are spewing lava but haven't turned into recognizable mountains yet? [link] [comments]  |
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