Does body temperature impact cognitive performance? If so, is there an optimal temperature? |
- Does body temperature impact cognitive performance? If so, is there an optimal temperature?
- How were the number of atoms in a mole determined?
- Are our brain's wrinkles unique to each individual like fingerprints or are they mostly the same shape with few variations?
- Does toasted bread contain less calories than normal bread?
- How is the metamorphosis of a caterpillar into a butterfly currently explained by darwinian evolution? or science in general?
- Do singers struggle to perform in cities with higher altitudes whilst on tour?
- If alcohol is a toxin, does that mean that inebriation and the after-effects of drunkenness is basically the body's response to a poisonous substance?
- When metal boils, does it release metal vapor in the bubbles?
- Correlation between cosmic microwave background and "snow flurry" on TV?
- What causes the motor whine in electric motors?
- If the stress-energy tensor generalizes stress and the metric tensor is analogous to strain for spacetime, is there a corresponding analogue of elasticity for spacetime?
- If all of the sound, light, motion, and heat that my computer produces eventually just become heat, is it just as efficient to heat my Room using the computer as with a space heater?
- What did ocean mollusks such as Clams evolve from?
- Why can some species only live in saltwater or in freshwater?
- Is it possible to plug the ends of a plasma filament in a linear theta pinch device by using a rectified AC pulse for the theta pinch field sandwiched between two static opposing magnetic fields?
- Why are airplane seatbelt buckles different from the ones in cars?
- What causes the crinkling sound in paper and some plastics?
- Does modern medicine impact evolutionary elimination of hereditary disease?
- Are both sides of DNA important in regards of mutations?
- If gravity can be described as the result of the curvature of space, why can’t other fundamental forces, such as Electromagnetism or the Strong Nuclear Force, be described in the same way?
- How many satellites are in space right now? And how long is their lifespan? Also, how are satellites already in space affected by technological progresses? Are they becoming outdated space trash but still functioning?
| Does body temperature impact cognitive performance? If so, is there an optimal temperature? Posted: 11 Nov 2017 11:24 PM PST |
| How were the number of atoms in a mole determined? Posted: 12 Nov 2017 01:08 AM PST I'm trying to do a bit of reading on this and what I've read so far doesn't seem to get at it. I get the definition of there being 6.02x1023 atoms in 12 grams of carbon 12, but how did they 'count' the atoms in those 12 grams? [link] [comments]  |
| Posted: 11 Nov 2017 05:27 PM PST |
| Does toasted bread contain less calories than normal bread? Posted: 11 Nov 2017 03:20 PM PST |
| Posted: 11 Nov 2017 06:47 PM PST |
| Do singers struggle to perform in cities with higher altitudes whilst on tour? Posted: 11 Nov 2017 04:26 PM PST |
| Posted: 12 Nov 2017 01:17 AM PST |
| When metal boils, does it release metal vapor in the bubbles? Posted: 12 Nov 2017 06:34 AM PST |
| Correlation between cosmic microwave background and "snow flurry" on TV? Posted: 12 Nov 2017 06:11 AM PST Once I have heared, that the black-white interfering signal on TV, which occur when you don't have a TV-signal (in my country it's called "snow flurry"), is due to the cosmic microwave background. Do someone know more about this? It makes sence to me if the TV-signal is in microwave range - but I don't know much about TV tech. [link] [comments]  |
| What causes the motor whine in electric motors? Posted: 11 Nov 2017 07:32 PM PST |
| Posted: 12 Nov 2017 01:10 AM PST To preface, I apologize if this is an ill-phrased question. I'm a novice learning relativity. Since elasticity relates stress and strain, and since the Einstein Field Equations relate stress-energy-momentum to curvature (Ricci plus metric), I was wondering if relativity has its version of elasticity relating the two as one big tensor. I'm more interested in existence than utility, so I'd love to know about it even if it's an irreconcilably unwieldy object. [link] [comments]  |
| Posted: 11 Nov 2017 03:52 PM PST I guess you lose some energy from the sound or from vibrations escaping the Room [link] [comments]  |
| What did ocean mollusks such as Clams evolve from? Posted: 11 Nov 2017 07:23 PM PST I assume that clams, mussels and the like didn't start as organisms with large, hard shells, but hey evolved them. If so, what did they evolve from? [link] [comments]  |
| Why can some species only live in saltwater or in freshwater? Posted: 11 Nov 2017 06:53 PM PST |
| Posted: 12 Nov 2017 04:24 AM PST I've come across a few studies in which attempts were made to increase the efficiency of linear theta pinch devices using solid plugs and one involving magnetic mirrors, but none involving static fields. I would expect a static field oriented in opposition to the induced field of the plasma to repel the ends of the filament. It would probably have to be ring shaped to prevent the filament from veering to the sides(similar to how a top is contained by a levitron) or require some other method of stabilization. The idea is simple but I can't find any information on past attempts so I figure there must be a reason it wouldn't work. Maybe if the static electromagnets were close enough together that the width of the chamber was greater than the length and the strength of the static fields relative to the theta pinch were tuned right(static fields should be stronger), the filament might reach equilibrium in a deformed torus shape(with a cross-section shaped like dragonfly wings or teardrops facing outward and no actual center hole) due to the geometry of the static fields and the compression, so a stabilizing mechanism might not be necessary. This might also mitigate the "wobble" instability. [link] [comments]  |
| Why are airplane seatbelt buckles different from the ones in cars? Posted: 11 Nov 2017 03:38 PM PST Do the different designs make one better for a certain application than the other? Is it different safety standards? [link] [comments]  |
| What causes the crinkling sound in paper and some plastics? Posted: 11 Nov 2017 07:18 PM PST What is causing the sound? Are the polymers/fibres under pressure so once you move them they snap back and make a sound? [link] [comments]  |
| Does modern medicine impact evolutionary elimination of hereditary disease? Posted: 11 Nov 2017 04:35 PM PST |
| Are both sides of DNA important in regards of mutations? Posted: 11 Nov 2017 03:50 PM PST If I understand it correctly mRNA is synthetized from only one side of the DNA spiral (3' -> 5') so according to me it is not important if there are mutations on the other side of DNA spiral (5' -> 3') because the RNA polymerase does not read it. For example the mutation on DNA base like [A T->C] = [A C] will be lost because mRNA will comprise only A. [link] [comments]  |
| Posted: 11 Nov 2017 08:30 PM PST |
| Posted: 11 Nov 2017 01:56 PM PST |
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