- Let's say I put a steel beam 1000 feet in the air above the earth, and this beam goes all the way around the world until it comes back and connects with it's original point, making a perfect circle. Assuming there is no support structure, would this steel beam levitate above the earth?
- The Hydrogen plasma produced in the wendelstein 7x experiment, will it still be hydrogen when cooled down?
- What effect would the heat death of the universe have on black holes?
- How can we can have motion relative to the CMB if it is observed from all directions?
- What would happen if the superheated material inside a fusion reactor was exposed?
- Can accelerating spacetime expansion eventually rip apart a black hole?
- Is it possible to have an orbit that doesn't bisect the planet?
- Is there a specific volume a dangling water droplet has to exceed before it falls? Does the volume vary depending on the material or shape of the surface?
- Do mild seasons affect temporal patterns of hibernating and migratory organisms?
- How much longer does it take 2 (electrically neutral) masses to reach eachother gravitationally when they travel parallel at equal relativistic speeds?
- Could we create a metric time system that would work similar to days and years?
- If we have antennas that can transmit EM radiation in any frequency we can think of, would it be possible to create an antenna that transmits EM in the visible light frequency range?
- Why is IV tPA for stroke patients have to be administered (generally) in under 3 hours? Why wouldn't it be as beneficial afterwards?
- How easily is nicotine absorbed through the skin? Does different skin have different absorption rates? & does nicotine act differently when absorbed through your skin compared to inhaling it?
- How do I know what atomic mass is correct on the periodic table when different tables have different atomic mass for certain elements?
- can you extract jacalin with water?
- Is there a name for a distribution given by y = (x-1)/(x+1)?
- How would I go about finding the limit of (1/x)^x as x approaches 0?
- Why do some quantities in physics calculations (electricity for example) take on complex values?
| Posted: |
| Posted: |
| What effect would the heat death of the universe have on black holes? Posted: |
| How can we can have motion relative to the CMB if it is observed from all directions? Posted: I just got put in my place by trying to call bullshit on someone who was saying we can measure our velocity relative to the cosmic microwave background. Apparently this is an actual thing. Can someone explain this please? How can the CMB rest frame exist if CMB photons are observed from all directions? [link] [comments]  |
| What would happen if the superheated material inside a fusion reactor was exposed? Posted: |
| Can accelerating spacetime expansion eventually rip apart a black hole? Posted: Space time is expanding and we know the speed of its expansion is accelerating. This pulls everything in the universe apart, though below the high-macro level this is effectively unnoticeable with almost no influence on bodies. However, if this acceleration remains then inevitably (after many years) the expansion of spacetime will 'pull' on molecular/atomic bonds and break up bodies, right? The forces holding matter together won't be able to resist the incredible growth of spacetime pulling everything apart. So I guess the real question is this: is there an upper threshold to the physical integrity of a black hole? Nothing physical can 'break apart' a black hole because obviously it would just be swallowed, but what about spacetime itself pulling it apart? I want to speculate the answer is no, but obviously I'm not sure. Anyone have any comments on this? [link] [comments]  |
| Is it possible to have an orbit that doesn't bisect the planet? Posted: An orbit around just the middle of the northern hemisphere. Most satellites I see appear to go right around the "middle" of the planet. I figure that is just because it is easiest, but is it the only realistically possible way to have an orbit without continuous adjustments. [link] [comments]  |
| Posted: |
| Do mild seasons affect temporal patterns of hibernating and migratory organisms? Posted: The title says it all. I live in the South East U.S. and so far we have had a pretty mild winter. [link] [comments]  |
| Posted: For example, at v/c=0, the time it takes for two 1[kg] spheres at R = 2[m] would be about 271392[s]. Now I would expect that the time would double (for the non-moving observer) when the relativistic gamma factor is 2 (v/c = 0.866), but I can't find a clear reference where this is stated/explained. [link] [comments]  |
| Could we create a metric time system that would work similar to days and years? Posted: A joke on The Simpsons talks about how the geniuses in Springfield got the trains running so efficiently that they even run on metric time. Is something like that possible? [link] [comments]  |
| Posted: |
| Posted: I've been trying to google the answer, but I just keep finding the guidelines, not an answer to why. I also see intra-arterial tPA has a general guideline up to 6 hours adding to my confusion. I know it increases the chance of hemorrhage, but does it somehow increase the likelihood even more after the 3 hour window? Any and all info is appreciated. [link] [comments]  |
| Posted: |
| Posted: I am home schooling my 8 year old son and would like to start teaching him the elements on the periodic table. I have made flash cards for all 118 elements on the periodic table including symbol, atomic number, element name and atomic mass however different periodic tables seem to have different atomic mass for certain elements. I have added the other name and symbol for the elements that are known by two names, like 112, Copernicium is also known as Ununbium, but am unsure as to which atomic mass I should attribute to the cards when I get different AM from different tables. Anyone able to tell me which table is most accurate? Thanks in advance. [link] [comments]  |
| can you extract jacalin with water? Posted: i'm trying to make a research about green synthesis of silver nanoparticles and there are some things i don't understand. one of it is that, i'm considering seed extract of a certain plant as the reducing agent of silver nitrate. this one study says that the jacalin content of the seed extract might have synergisitic effect with the silver nanoparticles that they've synthesized. but if you look at their extraction procedure, they only used distilled water to make seed extract. I've looked up some studies and they all say that they soaked the powdered seed and centrifuged it then used the supernatant for the experiment. i do understand that you can extract the chemical components that acts as antioxidants but here's the question, can you extract jacalin with just distilled water? a polar solvent? thanks in advance [link] [comments]  |
| Is there a name for a distribution given by y = (x-1)/(x+1)? Posted: |
| How would I go about finding the limit of (1/x)^x as x approaches 0? Posted: So my friend and I have been arguing over this recent BC Calc test question and we can't seem to figure it out. He thinks that the answer was 1 because (1/0)x = ∞0 = 1, but I'm pretty sure that this is incorrect because the x0 = 1 rule only applies to constants. I thought that the answer was DNE because the limit from the right (1) ≠ the limit from the left (a nonreal number). Could someone please explain how one would solve this problem? [link] [comments]  |
| Why do some quantities in physics calculations (electricity for example) take on complex values? Posted: College student here. I stumbled upon equations in physics on my own that take complex valued quantities. My question is: how can something like electrical impedance or current take on a complex value? [link] [comments]  |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment