Discussion: Kurzgesagt's newest YouTube video on gamma ray bursts! |
- Discussion: Kurzgesagt's newest YouTube video on gamma ray bursts!
- Is there an infinite number of wavelengths on the EM spectrum between 2 wavelengths?
- Can photons be counted?
- Is the digestive system's time to absorb energy dependent on the amount of new food pushing previous food through the system, or is the timeframe relatively constant?
- How exactly is information defined in the context of information theory?
- are we sure all elements heavier than iron are made in supernovae?
- Why is Venus hotter than Mercury?
- When is a rock's birthday? At what point in it's formation does a rock become a rock?
- How do red dwarf stars work?
- When conducting an electrical current, are the mechanical properties of a metal affected?
- Will there eventually be a second Pangaea?
- Why does an atomic nucleus not push itself apart due to the similar charge from all of the protons?
- Can someone please explain the Cherenkov radiation and how light is slower than the other particles?
- Benjamin Peirce's Notation of Euler's Identity? Picture inside.
- When falling into a black hole, it is said that you would be able to witness the universe progress at an incredible rate but doesn't that require you to see things move trough space faster than light?
- What do the strong and weak fields "look" like?
- My water bottle says "Purified by reverse osmosis." What exactly does this mean and how does it purify water?
- Could humanity produce enough ozone to replace the ozone layer in an emergency?
- If all electrical loads impart 3.41 BTU/hr per watt, where does a light bulb's light energy come from? It would seem that a 60W heater would produce a little more heat than a 60W light bulb, or else the light bulb would suck down slightly more than 60W.
- When CO2 is produced from hydrocarbon-based fires, where does the infrared radiation come from? Is it CO2 particles? Or does the production of CO2 emit the IR?
- Could there be a star as big as our galaxy?
- People can lose the ability to talk or write due to head trauma or other causes. When they do, how does it affect their ability to type and read?
| Discussion: Kurzgesagt's newest YouTube video on gamma ray bursts! Posted: 31 Jul 2016 09:15 AM PDT Hi everyone! In the past, Youtube videos have brought a lot of questions to askscience, so today we're trying something new! Use this thread to ask your questions about gamma ray bursts and discuss this new video by Kurzgesagt! Our panelists will be around throughout the day to answer your questions! [link] [comments]  |
| Is there an infinite number of wavelengths on the EM spectrum between 2 wavelengths? Posted: 01 Aug 2016 01:27 AM PDT If you take 100nm and 101nm wavelengths, is there an infinite number of wavelengths on the EM spectrum between 2 wavelengths or is this number restricted by Plank's Constant? And if there is an infinite or finite number of wavelengths emitted within the visible spectrum, does black body radiation from the sun emit that finite or infinite number of wavelengths or less than the theoretical limit? [link] [comments]  |
| Posted: 31 Jul 2016 11:56 AM PDT Would it be possible to send out exactly 100 photons with different energies, and then measure exactly those 100 photons with the same energies at the receiving end? Or are photons just a unit/discretization of the EM field? [link] [comments]  |
| Posted: 31 Jul 2016 06:58 PM PDT For example, take 4000 calories worth of donuts. If they're consumed and immediately followed by a low calorie high bulk 'meal' of indigestible fiber, would the donut meal be less absorbed compared to if the donuts were eaten and followed by a period of fasting? [link] [comments]  |
| How exactly is information defined in the context of information theory? Posted: 31 Jul 2016 09:36 PM PDT I've read the basic concept behind Claude Shannon's information theory. If I understand it correctly, the more equally likely the outcomes (more random), the higher the entropy, and therefore the more information is produced. This is how it was explained to me in this video. This doesn't make very much sense to me, because my intuition about information pretty much says the opposite. Information to me seems to be non-chaotic data in the midst of chaotic, random data. For example: The first line of text is randomly typed; it is non-information. The second line, however, is not randomly typed. It has an order to it; it is information. This makes sense to me. However, it seems to contradict what was explained to me. Am I wrong? [link] [comments]  |
| are we sure all elements heavier than iron are made in supernovae? Posted: 01 Aug 2016 12:47 AM PDT I was watching a show on high energy physics, and I realized we build particle accelerators to simulate cosmic rays basically... Now, we make artificial elements like Californium by bombarding a relatively large nucleus with smaller ones hoping that some stick together long enough to measure Wouldn't the same process occur naturally in space? Given the amount of radiation wouldn't this result in a significant portion of heavier-than-iron atoms being a result of this? Are we really star stuff? Or rather are we more like the gold on the inside of nuclear reactor lead lining? [link] [comments]  |
| Why is Venus hotter than Mercury? Posted: 31 Jul 2016 06:31 PM PDT |
| When is a rock's birthday? At what point in it's formation does a rock become a rock? Posted: 01 Aug 2016 12:42 AM PDT |
| Posted: 31 Jul 2016 03:07 PM PDT I read that they are fully convective, mixing hydrogen and helium throughout the star. Does this mean they switch between fusing helium and fusing hydrogen? Does it mean they fuse helium with hydrogen? [link] [comments]  |
| When conducting an electrical current, are the mechanical properties of a metal affected? Posted: 31 Jul 2016 11:27 AM PDT |
| Will there eventually be a second Pangaea? Posted: 31 Jul 2016 07:43 PM PDT |
| Why does an atomic nucleus not push itself apart due to the similar charge from all of the protons? Posted: 31 Jul 2016 11:56 PM PDT My chemistry teacher said she couldn't explain it perfectly and that I should ask the physics teacher, but I could only do that months from now. Shouldn't the similar charges push each other apart like two positive ends of a magnet? Am I thinking of this the wrong way? [link] [comments]  |
| Can someone please explain the Cherenkov radiation and how light is slower than the other particles? Posted: 31 Jul 2016 05:20 PM PDT |
| Benjamin Peirce's Notation of Euler's Identity? Picture inside. Posted: 31 Jul 2016 03:13 PM PDT From the book E: The Story of A Number. Skip to the outlined box if you just want to see Peirce's Formula. How could anyone think this notation was superior to ei*pi = -1? Can someone explain to me why, if any reason exists, that this notation is useful in understanding of Euler's Identity? [link] [comments]  |
| Posted: 31 Jul 2016 10:18 AM PDT I know that you'd get shredded by the black hole's tidal forces. But let's put that aside (or imagine that we're falling into a really big black hole where you can pass the event horizon without getting ripped apart) say you could see two galaxies move towards each other at 0.2c (may not be realistic, but it may also be another object). Now if you were to fall into a black hole, you would see this, but at an immensely sped up rate, for example, x 10000. But this would mean that you would see the two galaxies/objects move towards eachother at 2000c, and this can't be. Is this not a valid reference frame, or where is the flaw in my logic? [link] [comments]  |
| What do the strong and weak fields "look" like? Posted: 31 Jul 2016 04:59 PM PDT With the electromagnetic field, I know we draw two sets of field lines: ones radiating in/out from electric charges and wrapping around magnetic charges, but I also know the Strong on Weak Fields have their own sets of charges, as well as their own "electric" and "magentic" components. How would this work for the weak fields and strong fields, both around the charges and the force carriers? [link] [comments]  |
| Posted: 31 Jul 2016 09:15 AM PDT I was just reading the nutritional facts on my water bottle because I was bored and noticed it on the back. http://i.imgur.com/awJFeIY.jpg how does this process work? [link] [comments]  |
| Could humanity produce enough ozone to replace the ozone layer in an emergency? Posted: 31 Jul 2016 03:20 PM PDT |
| Posted: 31 Jul 2016 06:43 PM PDT |
| Posted: 31 Jul 2016 06:11 PM PDT |
| Could there be a star as big as our galaxy? Posted: 31 Jul 2016 05:57 PM PDT |
| Posted: 31 Jul 2016 11:14 AM PDT |
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