- If a gamma ray burst were to strike earth, would the distance it originated from change its effects at all? Also, would it be possible for the burst to only effect part of the planet, say, if it struck the northern but not southern hemisphere?
- Why is it that all electrons are exactly identical?
- Why is the ratio of the magnitude electric and magnetic field of a photon always equal to the speed of light?
- What caused my feet to make the sand squeak?
- How does Kirchhoff's Voltage Law apply to a closed circuit without components?
- Why do we measure time by earth specifications instead of a universal constant?
- How will a 'twisted' eyeball affect my vision?
- Is there a limit to how many times paper can be recycled before it no longer resembles paper? What is the environmental impact of all the additional resources (e.g. water, transportation to the recycling plant) needed to recycle paper versus making paper from scratch?
- What is the difference between a sine wave and trapezoid wave controller for electric motors?
- Is it possible to disconnect a power source and swap it to another without crashing the computer? How fast will this "swap" have to be?
- Where are all of these Higgs bosons?
- If I inhale different gases, like you do with helium, will my voice change?
- Can you Simplify of a²+b²?
| Posted: 25 Dec 2017 03:17 PM PST |
| Why is it that all electrons are exactly identical? Posted: 25 Dec 2017 08:19 AM PST Same goes for protons and neutrons; they're all exact copies of each other, and this is the same throughout the entire Universe (according to our current knowledge). Don't you guys find it interesting that this is the case? What could be the reason for this? Thanks for reading and merry christmas :) [link] [comments]  |
| Posted: 25 Dec 2017 07:50 PM PST E/B=C I was under the impression that E=B based on diagrams like this: Electromagnetic wave Is this due to how the math works out if you apply a rotational transformation to the magnitude or am I missing something? . Edit, title should read: "Why is the ratio of the magnitude of the electric and magnetic field of a photon always equal to the speed of light." [link] [comments]  |
| What caused my feet to make the sand squeak? Posted: 25 Dec 2017 08:23 PM PST Hello all, Here is a video of what I am asking about. I was taking a walk on the beach with my family today. We noticed that our feet and/or shoes were making squeaking sounds on the loose sand. I have been on sand tons of times and I have never noticed this noise before. I was on Bulter Beach in St. Augustine, Florida. I assume the beach location is important is finding of the sand composition. [link] [comments]  |
| How does Kirchhoff's Voltage Law apply to a closed circuit without components? Posted: 25 Dec 2017 01:46 PM PST Hey all, so I'm trying to teach myself more about electronics for my job. I've run into a bit of a frustrating wall that's Kirchhoff's Voltage Law. I get the basics of it, that when you add the voltage and the voltage drop it equals zero. What I don't understand is why the voltage total If a line is too long and has too much of a voltage drop then there won't be enough voltage to create a closed circuit. That makes sense to me. What doesn't make sense is what happens if there isn't enough voltage drop and whether that is possible due to KVF. Is this for safety to not overload the circuit? Is this an observation of physics that states by the time the current has reached the end of the circuit there's no more voltage left to push it? I just don't understand why it always equals zero, even on a closed circuit with no components. I get that even the wire itself will have some negligible resistance that creates resistance, but I don't understand why the simple wire would create a voltage drop equal to the voltage. I've seen lots of math that explains it when there's components in the circuit and it makes sense to me, but I don't understand how it could possibly apply to a short circuit and no components. I would ask in the electronic subreddits but this seems to be more of a physics/observation question than an actual practical application. [link] [comments]  |
| Why do we measure time by earth specifications instead of a universal constant? Posted: 25 Dec 2017 02:45 PM PST We use Earth's 1 loop around the sun for a year, but everything is relative including time. Think Interstellar.. Why not use a constant that works everywhere? Radioactive decay maybe? [link] [comments]  |
| How will a 'twisted' eyeball affect my vision? Posted: 25 Dec 2017 09:34 AM PST So,this might be a stupid question,but it has been in my mind for months... If one of your eyeballs turned upside down 180 degrees,what would your vision be like? Would that eye eventually adjust and have normal sight? Ps: Merry Christmas [link] [comments]  |
| Posted: 25 Dec 2017 07:43 AM PST This question came to me while thinking of all the gift wrapping and unwrapping that will take place today. A lot of gift wrap is now made of recycled paper and also encourages you to recycle it once it's served its purpose. But can this paper be recycled and reused indefinitely, or at some point will the original material be so broken down that you can no longer reconstitute paper from it? And even if you're not cutting down trees to make new paper, it still requires resources to recycle. So is recycling really helping the environment? Thanks and Happy Holidays. [link] [comments]  |
| What is the difference between a sine wave and trapezoid wave controller for electric motors? Posted: 25 Dec 2017 01:51 PM PST Some electric motors use different controllers and I would like to know the difference beteeen them. Thanks [link] [comments]  |
| Posted: 25 Dec 2017 10:16 AM PST |
| Where are all of these Higgs bosons? Posted: 25 Dec 2017 12:27 PM PST I read that the Higgs boson is responsible for mass. Where are these Higgs bosons? Are they ubiquitous throughout space? Does matter somehow "force" them to come into existence? Is there an understanding of how many there? Is it proportional to the amount of matter? [link] [comments]  |
| If I inhale different gases, like you do with helium, will my voice change? Posted: 25 Dec 2017 07:30 AM PST |
| Posted: 25 Dec 2017 10:00 PM PST I know that you can use the formula to simplify a²-b²= (a-b)(a+b), but is there si formal to a²+b²? [link] [comments]  |
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