Does continental shift have any effect on man made structures like bridges and canals that connect them? |
- Does continental shift have any effect on man made structures like bridges and canals that connect them?
- Why do wind turbines have 3 blades?
- Is the "Island of Stability" possible?
- [biology] How is the jaw pulled down?
- How exactly does the clock drive a CPU?
- What is meant by "weapons grade" uranium/plutonium?
- Has the average human IQ fluctuated significantly over the time it has been measured?
- Jacob Bekenstein proved that black holes grow by a Plank distance^2 every time it absorbs one bit of information. What does this mean exactly, what qualifies as "one bit"?
- How much harder is Thorium to weaponize and is it as effective or more over Uranium if done correctly?
- Why in the case of alloys (such as constantan and manganin), does the resistance and resistivity practically remain the same with increase in temperature?
- Can a planet rings rotate in a different angle and direction of it's planet?
- How did Einstein work out that the speed of light is the fastest speed there is? How do we know this?
- What causes Nichrome to have more electrical resistance than Copper?
- What are the effects of strong magnetic field on a human body?
- How can a hexagonal crystal structure, such as wurtzite GaN, have an overall spontaneous polarisation when a gallium atom bonded to four nitrogen atoms is nonpolar?
- [Biology] Will my children turn out any differently depending on how "in-shape" I happen to be at the time of conception?
- What causes lens flares, and why don't we get them with our eyes?
- Do different screen colours drain different amounts of battery?
- Will dry ice set off a household smoke detector when it sublimates?
- Since supernovae explode and spread the matter out, how can there be matter at the center that gets compressed into a white dwarf, neutron star, or a black hole?
- In the many-world interpretation of quantum mechanics, how many worlds are there? (a) finite (b) countably infinite (c) uncountably infinite (d) all of a, b, or c lead to a contradiction?
| Posted: 23 Aug 2017 11:40 PM PDT i.e. a bridge between Africa and Europe and Panama Canal? [link] [comments]  |
| Why do wind turbines have 3 blades? Posted: 23 Aug 2017 11:13 PM PDT Why do modern wind turbines typically have 3 blades? The wind driven pumps in old movies had many blades filling that disk. Doesn't the 3 blade approach mean some useful wind is wasted between the blades? The obvious answer is because this is the most efficient design, but how is that conclusion reached? [link] [comments]  |
| Is the "Island of Stability" possible? Posted: 23 Aug 2017 08:24 AM PDT As in, are we able to create an atom that's on the island of stability, and if not, how far we would have to go to get an atom on it? [link] [comments]  |
| [biology] How is the jaw pulled down? Posted: 23 Aug 2017 10:00 AM PDT |
| How exactly does the clock drive a CPU? Posted: 24 Aug 2017 06:33 AM PDT I understand making simple counter circuits using relays- they 'do their thing' and process the hardwired calculation pretty much the moment that power is applied. Does a CPU work more or less the same? Does it process one calculation in one cycle, apply the result to another calculation another cycle, and repeats the cycle? I am trying to understand exactly how this works after reading this aricle. I have a basic understanding of electronics and what each component does- I want to understand this also. [link] [comments]  |
| What is meant by "weapons grade" uranium/plutonium? Posted: 24 Aug 2017 07:14 AM PDT I'm not sure if it's just common slang or military talk. Is there an actual difference? Does the uranium and such used in weapons actually differ from that which naturally occurs or is used in energy. Also, tag on question - what is depleted uranium used in weapons such as artillery shells? [link] [comments]  |
| Has the average human IQ fluctuated significantly over the time it has been measured? Posted: 23 Aug 2017 10:19 PM PDT If so, are there any generally accepted reasons for this change? [link] [comments]  |
| Posted: 24 Aug 2017 07:00 AM PDT |
| Posted: 24 Aug 2017 06:59 AM PDT I've noticed a lot of posts about Thorium reactors stating the fact Thorium is harder to weaponize, but how much of a pro is this really? It seems to me from the wording it's still possible to weaponize it and is there any real safety if these reactors were more prevalent over Uranium reactors in helping stop nuclear bombs? [link] [comments]  |
| Posted: 24 Aug 2017 04:53 AM PDT In metals, the conductivity increases with decrease in temperature and in semiconductors the conductivity increases with increase in temperature but why in alloys (constantan and manganin) the conductivity practically remain the same with increase in temperature? Note:English is not my first language [link] [comments]  |
| Can a planet rings rotate in a different angle and direction of it's planet? Posted: 23 Aug 2017 10:38 PM PDT |
| Posted: 23 Aug 2017 09:36 PM PDT |
| What causes Nichrome to have more electrical resistance than Copper? Posted: 24 Aug 2017 06:12 AM PDT I guess Nichrome has less free electrons in it's atom because of which the number of collisions with the current forming electrons is very high and hence it has high electrical resistance. Correct me if my wrong. I will be thankful for help. [link] [comments]  |
| What are the effects of strong magnetic field on a human body? Posted: 24 Aug 2017 06:05 AM PDT I was reading about magnetars and found some very interesting information. Could someone please explain what would happen if we got dangerously close (within 10 000km?) to a very powerful magnetic field (up to 1 trillion gauss)? Thank you! [link] [comments]  |
| Posted: 24 Aug 2017 05:57 AM PDT GaN can be grown in a wurtzite crystal structure, where the two components of the alloy form interlocking hexagonal close packed structures. The gallium and nitrogen atoms bond into a tetrahedral structure, which would be inherently nonpolar, however, this isn't the case for the bulk structure, which exhibits a spontaneous polarisation along the {0001} growth axis. The only reason I've found is that it is due to the 'intrinsic asymmetry of the bonding in the equilibrium wurtzite crystal structure', but can anyone explain what this actually means? [link] [comments]  |
| Posted: 23 Aug 2017 08:59 PM PDT Depending on my level of physical conditioning at the time of intercourse, could it alter the genes I pass on to my children? Basically, if I were to get into top physical shape before I start trying to have kids, would my children turn out any differently than if I were overweight or generally out of shape. [link] [comments]  |
| What causes lens flares, and why don't we get them with our eyes? Posted: 24 Aug 2017 07:16 AM PDT Also, when driving at night, I get a kind of lens flare when looking at street lights through the windshield. Is that the same concept at play? [link] [comments]  |
| Do different screen colours drain different amounts of battery? Posted: 23 Aug 2017 09:43 PM PDT So... For example, let's say I got a white background on my phone... Will my battery last longer than it would if I got a black one? My theory is that, as white is made by adding up all colours, while black's basically no colour at all, I'd have to power more polarisation filters for black. However this could be the other way round, maybe black is produced by less input all together. This question isn't just about LCD Displays, maybe there are big differences, depending on the display type. [link] [comments]  |
| Will dry ice set off a household smoke detector when it sublimates? Posted: 23 Aug 2017 06:09 PM PDT If I add a few chips of dry ice to a bowl of hot water in order to make fog, can it activate the smoke detector? Thanks in advance! [link] [comments]  |
| Posted: 23 Aug 2017 08:06 PM PDT |
| Posted: 23 Aug 2017 09:58 PM PDT For reference: https://en.wikipedia.org/wiki/Many-worlds_interpretation https://www-tc.pbs.org/wgbh/nova/manyworlds/pdf/dissertation.pdf https://en.wikipedia.org/wiki/Universal_wavefunction It appears there is an answer here (101016): https://phys.org/news/2009-10-physicists-parallel-universes.html ... so that seems to be answer (a). Does anyone disagree or want to clarify? Does (a) imply a contradiction that isn't mentioned in that article? [link] [comments]  |
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