Do rainbows also have sections in the infrared and/or ultraviolet spectrum? |
- Do rainbows also have sections in the infrared and/or ultraviolet spectrum?
- If iron loses its magnetism at around 1400°F, how is the earths core magnetic?
- What actually is happening when programs load?
- Can you do 100 edits on a single (human) genome with CRISPR, or is the number limited ?
- What is the oldest known species of bacteria?
- How much energy is needed to create fusion and how much is produced by it?
- Is there anything you can add to water that would raise it's freezing temperature?
- How do scientists do accurate spectropolarimatery on distant stars if some wavelengths are largely absorbed by the atmosphere?
- How can peat burn underground? upto two meters apparently; where does the oxygen come from in these conditions?
- Is it true that in exothermic reactions mass in doesn't r e a l l y equal mass out?
- Why is it that the photon, an uncharged particle, is the exchange particle for the electromagnetic force?
- Why are most pain relievers also fever reducers?
- Would a water pump work better with rigid lines, or soft lines?
- Why do most if not all modern languages read either left to right or right to left? Why do none read top to bottom or bottom to top?
- Is it possible to see past an event horizon? If not, why?
- How does beta decay work?
- Help understanding a few things about the electron?
- Why does water, once being left for a long time (say overnight ), have lots of tiny bubbles in?
- Through what process is the nucleus of an atom split when an atom bomb goes off?
- Can you create a sonic boom underwater?
- For fluids, higher velocity means lower pressure, but what happens when you change your reference frame to be the faster moving particles?
- Does water still expand if it is frozen in a vacuum?
- How is the grain inside those "Magic Bag" pads affected by repeated exposure to microwaves?
| Do rainbows also have sections in the infrared and/or ultraviolet spectrum? Posted: 06 May 2017 10:58 AM PDT |
| If iron loses its magnetism at around 1400°F, how is the earths core magnetic? Posted: 07 May 2017 05:42 AM PDT After reading a comment in another thread about heavy metals in our solar system I saw a comment stating that our core made of mostly molten iron is why we survive solar radiation (due to its magnetism). Im not sure why I never queationed this before, but as an amateur blacksmith, I regularly heat iron up to a non magnetic temperature in order to quench and harden it. Also I know there is supposed to be nickel in the outer core which is also a non magnetic metal. So I did some research and found that it was believed to be cause by the dynamo effect caused by the swirling plasma within the core, but from my experience with plasma most of which comes from my home made arc furnace and of course the occasional plasma cutter (neither of which I have ever noticed creating any type of magnetic field), I dont quite understand how it alone, even if it were swirling, could create such a large magnetic field since the magnetic field of the earth is several hundreds of miles from the core. I also wondered how such a field were able to penetrate the miles of ferrous materiels found above it so easily while not magnetizing them. Then I started thinking about other things that cause magnetism like electro magnets and such and wondered if maybe our cold iron cored moon plays a role in our magnetism by reacting with surface metals which are cool enough to be more receptive to magnetism. So I researched that and found that the moon has little to no magnetism and unlike earth, its magnetism is non polar so there is no way the moon is the culprit of our magnetism because if it were then it seems it would also have to have magnetic properties similar to ours, and it doesn't. Which brings me back to my original question only revised, how is our inner core of Iron plasma magnetic, and why is important that it is Iron plasma as opposed some other form of plasma if the swirling truly does create the magnetic field somehow? [link] [comments]  |
| What actually is happening when programs load? Posted: 06 May 2017 05:19 PM PDT When a program loads, what changes to allow the user to use it? Also, how can some programs detect and display how loaded they are, when it isn't fully loaded? [link] [comments]  |
| Can you do 100 edits on a single (human) genome with CRISPR, or is the number limited ? Posted: 06 May 2017 06:06 PM PDT I'm interested in both theoritical limitations and practical ones. I can't seem to find something about it in the litterature. This is a question that is in a context of eugenics : would it be possible for parents to edit as many genes as they want, or would too many just be impossible (too long, too much errors, ...) ? [link] [comments]  |
| What is the oldest known species of bacteria? Posted: 07 May 2017 06:28 AM PDT For clarification - not classifications, the single oldest known life [link] [comments]  |
| How much energy is needed to create fusion and how much is produced by it? Posted: 06 May 2017 06:56 PM PDT Don't need a specific answer and thanks in advance! [link] [comments]  |
| Is there anything you can add to water that would raise it's freezing temperature? Posted: 06 May 2017 10:49 AM PDT There's lots of stuff to lower the freezing temperature, from salt to antifreeze, but is there anything that raises it? [link] [comments]  |
| Posted: 07 May 2017 01:40 AM PDT |
| Posted: 06 May 2017 10:27 AM PDT |
| Is it true that in exothermic reactions mass in doesn't r e a l l y equal mass out? Posted: 06 May 2017 07:32 PM PDT I came across an idea in a documentary I watched a long time ago that when paper is burned, a very very very very small part of its mass is converted to energy. [link] [comments]  |
| Posted: 06 May 2017 06:04 PM PDT I know I'm just a lousy,uneducated undergrad but I feel like there is a specific reason for this. [link] [comments]  |
| Why are most pain relievers also fever reducers? Posted: 06 May 2017 01:03 PM PDT |
| Would a water pump work better with rigid lines, or soft lines? Posted: 06 May 2017 10:52 AM PDT Putting in a water pump for my camper. Would a water pump work better with PVC supply and return lines? Or, something softer? Like a garden hose, or just something spongy like clear tubing? [link] [comments]  |
| Posted: 06 May 2017 03:16 PM PDT |
| Is it possible to see past an event horizon? If not, why? Posted: 06 May 2017 03:23 PM PDT |
| Posted: 06 May 2017 11:38 AM PDT So at School I learned that when a radioactive element does beta decay one it's neutrons splits into a proton and an electron. So far so good right, unfortunately I got way too much spare time so I wondered. If a neutron is made out of three quarks just as a proton, then where does electron come from? That are three fundamental particles that turn into four. Nothing can be added or taken from the Universe so the electron must have been around somewhere right? I even asked my teacher but she couldn't explain it either. Thanks for your answers. [link] [comments]  |
| Help understanding a few things about the electron? Posted: 06 May 2017 06:39 AM PDT Ok so first off, in school the electron is treated as if it has a specific radius. Obviously this isn't a proper representation of an electron because you can't properly define it. I was looking into electromagnetic dipoles and found that the magnetic dipole moment of an electron can be explained to be the consequence of its "spin", which is analogous to the spinning of a sphere in classical mechanics but isn't the same. I read that you can't treat it classically because an electron is really zero-dimensional and is a point-like particle and so doesn't have an axis on which to spin. So my question is basically which is it? Does an electron have a "size" or is it point-like? Also as a side note, could someone tell me if the way I visualise an electron probability cloud is in any way accurate? So let's say you can be 70% sure that the electron is within a certain radius and 30% certain that it's within a larger radius. Can you treat it as though it's properties are spread out so that 70% of its properties (e.g mass, charge) are within the smaller radius and 30% effect the larger radius? Kind of like the electron is a cloud of gas which is more concentrated in the centre and therefore has more interactions there than further out. I hope I've described myself properly. If I haven't please just ask for clarification. Anyway, thanks a lot in advance for any replies! :) [link] [comments]  |
| Why does water, once being left for a long time (say overnight ), have lots of tiny bubbles in? Posted: 06 May 2017 11:23 AM PDT |
| Through what process is the nucleus of an atom split when an atom bomb goes off? Posted: 06 May 2017 05:07 PM PDT |
| Can you create a sonic boom underwater? Posted: 06 May 2017 02:49 AM PDT |
| Posted: 06 May 2017 02:05 PM PDT My Fluids professor showed a video of a ping pong ball sort of being "sucked" into a faster moving stream of air due to the lower pressure field resulting from the higher velocity. But what if your reference frame is one of the faster moving particles? My thought process is that relative to this particle, the air outside of the stream will be moving faster, so the lower pressure will actually be outside of the air stream. So then wouldn't that mean a tiny ping pong ball inside the air stream would actually get "sucked" or pushed out of the stream instead of into it like we have seen it do? [link] [comments]  |
| Does water still expand if it is frozen in a vacuum? Posted: 06 May 2017 09:02 AM PDT |
| How is the grain inside those "Magic Bag" pads affected by repeated exposure to microwaves? Posted: 06 May 2017 07:15 PM PDT I'm referring to these dingusses, which are essentially glorified water bottles. They are actually filled with grain, such as oats. But what happens to the grains after repeated passages in the microwave, say about 100 times? They don't seem to burn ... why is that? And is that cumulative microwave exposure changing the materials inside in any way? [link] [comments]  |
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