How do engineers plan for thermal expansion when laying traintracks in deserts where the daytime and nighttime temperatures are vastly different? |
- How do engineers plan for thermal expansion when laying traintracks in deserts where the daytime and nighttime temperatures are vastly different?
- Do the lattice constants of NaCl and KCl change when water is added, if so do these changes remain when the water is removed or do the lattice constants return to their original lengths?
- Does the water-temperature affect the effectiveness of how a water-surfactant solution binds to hydrophobic material?
- Why do computer monitors change colors when the VGA cable is loose?
- What's this "Steering Ratio" on Tanks?
- How do different objects in the field of view get "routed" to the area of the brain that can process them?
- How effective is carbon capture currently?
- Why do so many experiments studying the effects of a substance use rats?
- Do SSDs need to be overwritten for safe file deletion?
- How do temporary autoimmune responses cause permanent damage?
- If we don't know the limit of the observable universe how are we able to see the Cosmic Microwave Background and early glimpses of the universe?
- Wouldn't neutrinos have near infinite mass according to Special Relativity rules?
- Does the Big Bang Theory, with everything starting from a point, violate Heisenberg's Uncertainty Principle?
- How does one "shoot" alpha particles at something?
- Can an Imago retain any memories of things that happened to it as a Larva?
- Neutrinos are fermions; technically they can't occupy the same space; so what happens?
- If all different types of waves on the electromagnetic spectrum are just higher frequencies, why can't we make a 'box' to produce all of them?
- Does the moon have volcanic eruptions?
- What would happen to Sun-equivalent masses consisting purely of a single element, for various other elements?
- Why can't fermions share quantum states, but bosons can?
| Posted: 14 Jul 2018 04:20 PM PDT |
| Posted: 15 Jul 2018 06:29 AM PDT |
| Posted: 15 Jul 2018 04:30 AM PDT |
| Why do computer monitors change colors when the VGA cable is loose? Posted: 15 Jul 2018 04:01 AM PDT I've noticed when the VGA cable is about to fall out the monitors starts displaying everything pink or yellow or shows lines. Why? [link] [comments]  |
| What's this "Steering Ratio" on Tanks? Posted: 15 Jul 2018 06:54 AM PDT No, not a steering ratio on cars, only on tanks with tracks. The thing about Steering Ratio on tanks is that there's a narrow range of ratio of the distance between the two side of the track, and the length the track that have a contact to the ground. Tanks that are too wide or too long will have a higher tendency to break their track than tanks that are following this ratio. This guy talks about it at one point in his video (https://youtu.be/KfgifHh5R4Y?t=19m8s) and I would like to know what's the exact ratio for this "steering ratio" tank. PS. If this is a wrong subreddit, please direct me to a correct one. [link] [comments]  |
| Posted: 14 Jul 2018 10:10 PM PDT My understanding is that certain areas of the brain specialize in processing different types of objects, like faces. So if a person is looking at say two different faces and many other objects, how do the regions of visual input containing faces get sent to the appropriate area of the brain? Or does every brain region constantly scan the entire input for the thing it specializes in, like a convolutional neural network? [link] [comments]  |
| How effective is carbon capture currently? Posted: 15 Jul 2018 07:07 AM PDT So, I'm a politics student and IIRC, I read that people and politicians aren't as green (ecologically) because they have faith that carbon capture will become effective enough to reverse or at least slow the effects of man-made climate change. So, are we close to an effective system that can achieve that? [link] [comments]  |
| Why do so many experiments studying the effects of a substance use rats? Posted: 14 Jul 2018 09:05 PM PDT For example: X substance tested on rats showed the rats died/lived/experienced some sort of symptom. Why are rats to popular in studies? Is there some sort of correlation in the way rats experience things that is similar to the way humans do? [link] [comments]  |
| Do SSDs need to be overwritten for safe file deletion? Posted: 14 Jul 2018 01:37 PM PDT |
| How do temporary autoimmune responses cause permanent damage? Posted: 14 Jul 2018 04:13 PM PDT Say, nerve damage, if specificity helps. If the immune system temporarily attacks myelin, why would the damage be permanent? Myelin doesn't heal quickly, but it does heal. And if the immune system can attack the non-regenerating axons, why? There would seem to be a lot of evolutionary pressure against that. (I mean, things don't get selected out overnight, but immune and nervous systems as we know them are both pretty damn old, aren't they?) Thanks! [link] [comments]  |
| Posted: 14 Jul 2018 07:47 PM PDT |
| Wouldn't neutrinos have near infinite mass according to Special Relativity rules? Posted: 14 Jul 2018 10:42 PM PDT So research shows that neutrinos have some small mass and they're traveling at speeds approaching the speed of light. The equation for mass dilation says the mass of an object equals m / sqrt(1 - v^2 / c^2), where m is its mass at rest. Therefore, since neutrinos have some mass and a speed close to or equal to c, wouldn't they have a huge mass? [link] [comments]  |
| Posted: 14 Jul 2018 08:19 PM PDT |
| How does one "shoot" alpha particles at something? Posted: 14 Jul 2018 01:58 PM PDT I was in chem the other day and we were talking about rutherford's famous experiment and how he shot alpha particles at gold foil. I know what alpha particles are but . . . how do you shoot them? [link] [comments]  |
| Can an Imago retain any memories of things that happened to it as a Larva? Posted: 14 Jul 2018 04:10 PM PDT Was originally thinking of Caterpillars and Moths when I wrote this, but in general, grubs/beetles, anything. [link] [comments]  |
| Neutrinos are fermions; technically they can't occupy the same space; so what happens? Posted: 14 Jul 2018 09:50 AM PDT Neutrinos are fermions; technically they can't occupy the same space, and thus could (however improbably) collide. So what happens? What force / exchange particle modulates such a collision? [link] [comments]  |
| Posted: 14 Jul 2018 03:32 PM PDT I was reading through Feynman's Six Easy Pieces, and he talks about waving a piece of paper fast enough to produce different types of waves. I know that it's an illustration and not reality, but it got me wondering: Would it be possible to make a box with a dial on the front and a little oscillator inside that vibrates faster and faster to produce different waves depending on the selection? [link] [comments]  |
| Does the moon have volcanic eruptions? Posted: 14 Jul 2018 03:29 PM PDT Im currently watching a science channel show about the moon, then got thinking about plate tectonics. So does the moon have earthquakes and volcanic eruptions? [link] [comments]  |
| Posted: 14 Jul 2018 11:46 AM PDT |
| Why can't fermions share quantum states, but bosons can? Posted: 14 Jul 2018 11:50 AM PDT So it's my understanding that fermions can't share quantum states and when the become close to doing so, they will interact and "collide". So what property about bosons, allows them to not collide? Also, does this extend to multiparticle bosons, such as mesons or alpha particles? [link] [comments]  |
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