How do wireless chargers work? |
- How do wireless chargers work?
- Is the universe the same age everywhere?
- (Astronomy) When fusion begins in a star, is at an immediate happening where the entire star bursts to life or does it slowly build energy and therefore light emission?
- How do we know the electron is a fundamental particle and not composed of something smaller?
- Is there anything in quantum dynamics that violates the light-cone causality principal of relativity?
- What kind of laser do I need to perform the double slit experiment at home?
- If the universe is flat, how do we live in a three dimensional world?
- I’m a flight attendant and while flying we give out pretzels in foil packets, when the passengers hand me back their empty packets they often stick to the passengers hand, like static and a balloon and they can’t drop it into the trash.. why is that?
- Is a leaf considered ‘dead’ before or after it falls off of a tree?
- Is soap required to "foam" in order to work properly?
- How is vitamin K synthesized by bacteria absorbed by humans?
- How do tectonic plate shifts effect the pipes and sewers underground? How do we deal with/ prevent it?
- Why have the radioactive elements in the earths core not resulted in an explosion?
- When does a tree officially die?
- How and why did humans or any organism develop taste buds? Why did the process of evolution reward better senses of taste?
- What would happen to me if I stood in the path of the Large Hadron Collider?
- How do radio signals like those from a wireless router or cell tower travel through solid objects?
- Most of the light omitted by our sun is in the green spectrum, so why do the majority of plants (that require the sunlight to convert CO2 and H2O into sugars) reflect away the green, and absorb the other colors instead?
- Why aren't lasers perfectly monochromatic?
| How do wireless chargers work? Posted: 30 Nov 2017 04:39 PM PST |
| Is the universe the same age everywhere? Posted: 30 Nov 2017 08:43 PM PST |
| Posted: 01 Dec 2017 04:38 AM PST |
| How do we know the electron is a fundamental particle and not composed of something smaller? Posted: 01 Dec 2017 01:10 AM PST |
| Posted: 01 Dec 2017 04:47 AM PST |
| What kind of laser do I need to perform the double slit experiment at home? Posted: 01 Dec 2017 04:25 AM PST I don't know if this is the right place for it, and I'm sorry if I'm breaking the rules, but I'd really want to perform the double slit experiment at home. If someone who's done it can point me to what laser I can buy without breaking my bank account, and maybe show me which video I can use to help me set it all up (there's a million of them), I'd really appreciate it! EDIT Or point me towards the correct subreddit, if this isn't it! [link] [comments]  |
| If the universe is flat, how do we live in a three dimensional world? Posted: 01 Dec 2017 05:05 AM PST I've seen written in many places that the universe is flat, but we obviously live in a 3-D world. How is that possible? [link] [comments]  |
| Posted: 01 Dec 2017 03:57 AM PST |
| Is a leaf considered ‘dead’ before or after it falls off of a tree? Posted: 30 Nov 2017 11:19 AM PST |
| Is soap required to "foam" in order to work properly? Posted: 30 Nov 2017 09:34 PM PST |
| How is vitamin K synthesized by bacteria absorbed by humans? Posted: 30 Nov 2017 09:26 PM PST I'm learning that vitamin K is made by bacteria that reside in the large intestine/colon but I don't understand how it's absorbed. Vitamin K is fat soluble and typically fats are absorbed in the small intestine through micelles that carry A,D,E, or K. Once you get past the ileocecal sphincter, things usually don't flow backwards, so I don't see how bacterial vitamin K could be absorbed with any degree of efficiency without fat. [link] [comments]  |
| Posted: 30 Nov 2017 01:54 PM PST |
| Why have the radioactive elements in the earths core not resulted in an explosion? Posted: 01 Dec 2017 03:05 AM PST My understanding is that part of the reason the Earths core is hot is from the decay of radioactive elements. But presumably the heaviest would sink to the bottom where they could accumulate until there was a critical mass and explode. Why doesn't this happen? Or did it, but it happened when the Earth first formed? [link] [comments]  |
| When does a tree officially die? Posted: 30 Nov 2017 02:07 PM PST Is it dead the moment the last bit of trunk is cut from the root system? But, is it ceasing to function at that point? So, is it dead when it stops doing photosynthesis? And can it continue to do photosynthesis after the roots are cut? As long as it has light and the existing water in the branches it's good, right? I was trying to answer this question for my kids after getting our Christmas tree and I ended up sounding like Calvin's dad. Please set us straight. [link] [comments]  |
| Posted: 30 Nov 2017 12:28 PM PST I always figured if ancient humans just needed to put food in their bellies, it didn't really matter what the food tasted like, just as long as they were fed enough to survive. So why would the evolutionary process reward those who were pickier about what they ate in such a harsh environment? Edit: didn't even take into account how eating the wrong thing could be detrimental to survival, sometimes even more-so than the threat of starvation. Thanks r/askscience! [link] [comments]  |
| What would happen to me if I stood in the path of the Large Hadron Collider? Posted: 30 Nov 2017 08:11 AM PST |
| How do radio signals like those from a wireless router or cell tower travel through solid objects? Posted: 30 Nov 2017 11:09 PM PST I understand how energy, in the form of waves, can travel through a simple medium like air, but how do signals not only penetrate solid objects but also keep their data integrity? [link] [comments]  |
| Posted: 30 Nov 2017 09:39 AM PST I had heard an explanation once of why the sun's overly-green spectrum caused plants on Earth to evolve green leaves, but I can't remember why because thinking about it, that seems backwards. Wouldn't absorbing green, and reflecting dark blue or red, give the plants much more energy? [link] [comments]  |
| Why aren't lasers perfectly monochromatic? Posted: 30 Nov 2017 10:03 AM PST Laser light is thought of as monochromatic. This is more or less true. However, if you measure the output of a laser, you can still get a curve with one or more peaks. If the light comes from stimulated emission based on quantum energy levels, why is there a curve for some lasers? Why don't all laser spectra consist only of discrete spikes? [link] [comments]  |
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