Why do you not feel hungry after not eating for a long time? |
- Why do you not feel hungry after not eating for a long time?
- Why does wetting hair allow us to easily "shape" it?
- Are the molecules in a soft solid, like styrofoam, farther apart than the molecules in a hard solid, like iron?
- Why do scars never heal?
- (Physics) entangled particles: when are the states undetermined, when just unknown?
- Is Tesla's theory of aether accepted as science? Or is it still theory?
- Is it theoretically possible to make a hollow magnet where the north pole is on the outside and the south pole is on the inside?
- Can smoke detectors detect things other than smoke?
- Have all the manuscripts saved from Antiquity been read?
- Would DNA taken as a kid say 11, be comparable to when that kid is 40?
- How do we give lab animals cancer for testing?
- Can someone explain what is going on with the light in the clouds in this video?
- How are large packs of lithium ion batteries, specifically 18650s, charged at once?
- How come Foucault's pendulum explain the rotation of earth while a simple pendulum doesn't?
- How do power companies know how much electricity is being used for public street lighting and traffic lights?
- What happens if a normal non-epyleptic person take seizure medicine?
- Does the analytic continuation of the Riemann zeta function also work with other funtions?
| Why do you not feel hungry after not eating for a long time? Posted: 09 Jul 2017 06:18 PM PDT |
| Why does wetting hair allow us to easily "shape" it? Posted: 09 Jul 2017 08:30 AM PDT i just had this random thought while i showered and was curious why wetting hair would allow it to easily be "molded". isnt each hair coated in oil which is hydrophobic. also, why is hair sometimes so hard to fix? for example that stray hair standing up on your head. [link] [comments]  |
| Posted: 09 Jul 2017 10:15 PM PDT |
| Posted: 09 Jul 2017 07:40 AM PDT I have a few scars and stitches on my forehead since i was a child and they look the same year after year! :( [link] [comments]  |
| (Physics) entangled particles: when are the states undetermined, when just unknown? Posted: 09 Jul 2017 10:10 PM PDT (noobie question, apologies if formatting is bad...) Concerning entangled particles. How do we know they are in really in 'superposition', how do we know the states are really indeterminate and not just simply unknown? E.g. take a matching shoe pair, randomly (eyes closed...) put each shoe in separate identical boxes and send one box to the moon. When a colleague on the moon opens his box, he immediately knows what is in the other box. The complementary shoes though were never in superposition. Which shoe was where, was simply unknown. Somehow in QM "unknown states of a complementary particle pair" is not enough to model an entanglement experiment. It is necessary for the states to actually be undetermined to best explain the experiment. If one had both separate unopened shoeboxes again, how does one decide if the shoe states are in superposition or "simply unknown"? If anyone peeks in the box the states "collapse" ... to experimentally determine non-superposition would it be necessary to create a steady stream of "randomized complementary shoe box pairs" and do a statistical analysis? somehow I think Bell's Inequality fits in here, but I do not know how (and don't understand it yet...) (of course I do not believe that shoes can be in superposition) [link] [comments]  |
| Is Tesla's theory of aether accepted as science? Or is it still theory? Posted: 09 Jul 2017 07:43 PM PDT |
| Posted: 10 Jul 2017 01:27 AM PDT |
| Can smoke detectors detect things other than smoke? Posted: 09 Jul 2017 07:49 AM PDT Are modern smoke detectors (2000s and onwards) able to detect other gases? Would it be able to detect tear gas? [link] [comments]  |
| Have all the manuscripts saved from Antiquity been read? Posted: 09 Jul 2017 07:55 AM PDT |
| Would DNA taken as a kid say 11, be comparable to when that kid is 40? Posted: 09 Jul 2017 04:42 AM PDT I was talking with a buddy about the conspiracy theories regarding the government building illegal tracking databases of school kids or babies for some scifi police state. But with my very simple understanding of DNA, wouldn't it significantly change. So basically my question is, if you had your DNA taken and stored when you were like 13. Would the CIA even be able to compare a DNA sample given by 40 year old you to elementary school you and confidently say you are the same person? I hope the flair under chemistry is fine. I can change it if it falls under a different category. [link] [comments]  |
| How do we give lab animals cancer for testing? Posted: 09 Jul 2017 08:39 AM PDT |
| Can someone explain what is going on with the light in the clouds in this video? Posted: 09 Jul 2017 08:57 PM PDT I took this video on the way home this evening as I noticed two rainbow like lights in specific spots on either side of the sun. It hasn't rained here for a few week (not sure if that matters), but I'd love to understand what is going on here? Link to video: https://vimeo.com/224888166 [link] [comments]  |
| How are large packs of lithium ion batteries, specifically 18650s, charged at once? Posted: 09 Jul 2017 12:11 PM PDT For smaller lacks I often see balanced charging for each individual cell, but that can't work for a large pack, like in a electric bicycle, or in a Tesla, right? [link] [comments]  |
| How come Foucault's pendulum explain the rotation of earth while a simple pendulum doesn't? Posted: 09 Jul 2017 06:58 PM PDT Foucault's pendulum is on earth, right?. Then how come it explain the rotation of earth? [link] [comments]  |
| Posted: 09 Jul 2017 06:58 AM PDT |
| What happens if a normal non-epyleptic person take seizure medicine? Posted: 09 Jul 2017 07:58 AM PDT |
| Does the analytic continuation of the Riemann zeta function also work with other funtions? Posted: 09 Jul 2017 04:51 AM PDT After watching this wonderful explanation video about the Riemann zeta function, I (kind of) understand what's it all about and where such bold statements like "Infinity = - 1/12" origin from. This technic of expanding a function in areas, which are undefined for non-complex numbers, should also work for other functions than the Riemann zeta function, I guess. And I suppose mathematicans are doing that. But I am wondering, if other functions are also "mapping" an otherwise divergent series to a finite number. So if there is a function which also represents a series like "1 + 2 + 3 + ...", will the result also be - 1/12? Or if we had a series "-2 + -4 + -6 + ..." the result will 0 in any of this kind of functions? Or does this "magic" really just work with the Riemann zeta function? [link] [comments]  |
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