If a rectangular magnetic "plate" has an object hovering over it, and I pick up the plate, do I feel the weight of both or only the magnet plate? |
- If a rectangular magnetic "plate" has an object hovering over it, and I pick up the plate, do I feel the weight of both or only the magnet plate?
- Whats the mechanism that allows us to know when we've had enough water?
- Can we learn things while we sleep?
- Is radioactive decay temperature-dependent?
- Is there a Doppler effect for quantum mechanical wave functions?
- What is the difference between a white surface and a mirror?
- What actually happens to someone’s body when they “freezes to death”?
- Will my phone charge faster/more if my portable battery is in a higher position than my phone?
- Can whales use their mouths to breathe as well as their blow holes? If so can they do so independently of each other?
- Do other animals get headaches? What is happening inside the head during a headache?
- Do insects/animals pass down memories to their offsprings? Are spiders' ability to create complex cobwebs without being taught just plainly "instinct"?
- How exactly do certain drugs cause damage to the liver? Does it always regenerate?
- Is there any scientific evidence that anti-aging,anti-wrinkle creams, and similar remedies work?
- Do vocal cords affect the "timbre" of an individual's cough? Or are they entirely separate functions?
- Copper has four shells with 2, 8, 18 and 1 electrons, being the later the outmost shell. We know that electrons occupy shells according to their energy level. What happens if in the copper case, we remove one electron from the inner shell? Will outer shell electrons move to occupy the vacant space?
- How do organs and body parts know when to stop growing?
- Do trains use a disproportionate amount of fuel accelerating from a stop to their operating speed? Can this be quantified for a train of a given weight and power output?
- Is there an area of effect for radiation?
- Why are fungal infections/diseases rarer than bacterial or viral infections?
- Does a car's combustion engine work in space? Specifically, would it work in a vacuum?
- There are indications that cannabis might have regulative properties in diabetics, does quitting the consumption of cannabis products produce a diabetic upward spike?
- How closely could a satellite orbit a moon or planet that has no atmosphere?
| Posted: 21 Dec 2018 04:24 AM PST So this is a project I saw in a conference today, and with my limited knowledge of highschool physics I though this felt completely bullshit. The Idea was a backpack with magnets that carry the stuff inside it so you don't have to. But according to Newton's first law, isn't the person carrying the backpack still feeling the weight of what's inside + the weight of the magnets? [link] [comments]  |
| Whats the mechanism that allows us to know when we've had enough water? Posted: 21 Dec 2018 12:46 AM PST So, if we're dehydrated and we have a glass of water how can our brain know that it was enough if the water wasn't absorbed and homeostasis wasn't reached? [link] [comments]  |
| Can we learn things while we sleep? Posted: 20 Dec 2018 07:49 PM PST I see videos on YouTube that are a few hours long and are meant to be listened to while sleeping to help learn the language. Does watching these videos help do anything while sleeping? [link] [comments]  |
| Is radioactive decay temperature-dependent? Posted: 21 Dec 2018 05:58 AM PST Does the rate of radioactive decay for an isotope vary with temperature? For example uranium-235 has a half-life of 703.8 million years, but would cooling to absolute zero (or very close to absolute zero) have a significant influence of the rate of decay? [link] [comments]  |
| Is there a Doppler effect for quantum mechanical wave functions? Posted: 21 Dec 2018 04:29 AM PST |
| What is the difference between a white surface and a mirror? Posted: 21 Dec 2018 07:26 AM PST Both of these surfaces reflect light, but one gives white, but the other gives the actual color. Why? [link] [comments]  |
| What actually happens to someone’s body when they “freezes to death”? Posted: 21 Dec 2018 06:36 AM PST What happens inside someone's body when they get hypothermia and die? What is stopping the body and nervous system from working in extreme cold? [link] [comments]  |
| Will my phone charge faster/more if my portable battery is in a higher position than my phone? Posted: 21 Dec 2018 01:58 AM PST I've been wondering if the battery has to "push" electrons, so that if the phone is in a lower position, charging will be more efficient. [link] [comments]  |
| Posted: 21 Dec 2018 07:30 AM PST |
| Do other animals get headaches? What is happening inside the head during a headache? Posted: 20 Dec 2018 09:41 AM PST |
| Posted: 21 Dec 2018 02:22 AM PST Like with some birds and their intricate nests, bees and beehives, etc. I asked this here several years ago but never got a concrete answer. All of those skills/actions seems to come from complex knowledge from memory rather than just plain instinct to me but I dunno anything deeper about it really. I'm also wondering if there are recent studies about it and if they could bring more light. It's just something that I've been curious about since I was a kid. [link] [comments]  |
| How exactly do certain drugs cause damage to the liver? Does it always regenerate? Posted: 20 Dec 2018 08:40 PM PST Alcohol through my understanding is toxic to the liver because the byproduct of first metabolism of ethanol, acetylhyde, just damages the liver. How? Also drugs that aren't broken down into something toxic like acetaldehyde, say phenibut, how does that damage the liver overtime? (Apparently phenibut can cause fatty liver in large dosages over time). Concerning regeneration: I've read that a liver can recover from 1/4 it's original size compared completely. If that's the case why does full blown cirrhosis have no recovery? Thank you! [link] [comments]  |
| Is there any scientific evidence that anti-aging,anti-wrinkle creams, and similar remedies work? Posted: 21 Dec 2018 05:02 AM PST |
| Posted: 20 Dec 2018 10:25 PM PST |
| Posted: 21 Dec 2018 02:10 AM PST I mean, one electron from the second shell decays to occupy the vacant space in the first shell, and so one? or will the spot continue vacant? If the first option is true, what element we will have after that? It is not copper anymore, isn't it? [link] [comments]  |
| How do organs and body parts know when to stop growing? Posted: 21 Dec 2018 07:54 AM PST For example, how do the cells of the nose know to stop multiplying once they get to a certain size. I understand that genetics control things such as nose size, but is DNA aware of when the body parts grow to the appropriate size and proportions. [link] [comments]  |
| Posted: 21 Dec 2018 07:45 AM PST Trains are quite fuel efficient due to the low friction levels between steel wheels and steel rail. Once a train is up to operating speed it seem like you'd only have to use enough fuel to overcome that low friction level, air resistance, and gravity if you were going up a hill. Does this mean a disproportionate amount of fuel is consumed while accelerating from zero to operating speeds? Let's assume a flat track of 100 miles in length, a train weighing 10,000 tons, and a power to weight ratio of 2hp per ton: how much fuel does the train consume to move that 100 miles? How much fuel is used in the first two miles vs the last 98? [link] [comments]  |
| Is there an area of effect for radiation? Posted: 20 Dec 2018 06:22 PM PST There were experiments on the demon core which took several lives due to radiation exposure. If the incident hadn't been quickly stopped, would the core have just remained in a critical state until it eventually decayed or would it over heat and melt or would it explode? Also, what sort of area would be consider lethal due to radiation? [link] [comments]  |
| Why are fungal infections/diseases rarer than bacterial or viral infections? Posted: 20 Dec 2018 09:30 PM PST Diseases that are most prominent in the public consciousness are always viral or bacterial. Most awareness for diseases caused by fungi seems to be limited to fungal skin infections. Are there serious fungal diseases that are widespread? If no, then why not? [link] [comments]  |
| Does a car's combustion engine work in space? Specifically, would it work in a vacuum? Posted: 21 Dec 2018 06:56 AM PST I want to know if you could drive a car in an airless environment. Assume gravity is the same as earth. (Or not, if you want to score bonus points.) [link] [comments]  |
| Posted: 20 Dec 2018 10:22 PM PST Layman here. I've read on this article that cannabis may be a regulating factor in diabetics by stabilizing blood sugar levels. Are there any indications that suddenly quitting the consumption of cannabinoids may produce a negative effect in regulating blood sugar, and if so for how long and how can the system return to its normal levels? [link] [comments]  |
| How closely could a satellite orbit a moon or planet that has no atmosphere? Posted: 20 Dec 2018 04:00 PM PST |
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