What would be a 2D equivalent of a black hole? |
- What would be a 2D equivalent of a black hole?
- I know that carbon, under extreme heat and pressure, can form diamond. Is there a similar transformation with other elements?
- Would a triangle of degrees 0°, 0°, and 180° (a line by all appearances) still be considered a triangle?
- Casimir confusion: how is it even possible?
- There's lots of work on the physics of having more than 3 spatial dimensions. Is there any work on the physics of having more than two temporal dimensions?
- Is there any way in how we could observe dark matter since it doesn't interact with anything besides gravity?
- Am i correctly following Newton's Laws?
- [Physics] Is anything in the universe completely stationary?
- How are the methods of integration and differentiation derived?
- If the Earth was compressed into a black hole, would it continue to orbit the sun?
- Why do the recently detected gravitational waves lose energy over time?
- How deep can a chasm caused by an Earthquake be?
- Why is x*y=y*x? Is there a proof for this?
- Why do sleep-talkers speak sometimes normally and sometimes nonsense gibberish? Does the gibberish have any sort of "grammar"?
- Earthquake Monitors at Bottom of Marianas Trench?
- Why do the seasons match up with the length of the year?
| What would be a 2D equivalent of a black hole? Posted: 13 May 2016 11:43 AM PDT You know how sometimes gravity is portrayed on a trampoline, with a big ball placed in the middle to warp the sheet and a small one going around it in circles to represent a planet, right? What would be the equivalent of a black hole in that representation? [link] [comments]  |
| Posted: 13 May 2016 11:07 AM PDT I was particularly interested in finding out if lead could also make a similar transformation under extreme heat and pressure and if so, what the result would be. [link] [comments]  |
| Posted: 13 May 2016 06:25 PM PDT |
| Casimir confusion: how is it even possible? Posted: 14 May 2016 01:49 AM PDT My understanding may well be flawed, but I have been told:
My expectation is that the conductors should be incapable of blocking the oscillations for the same reason those oscillations exist in the first place. This is a widely discussed model so I recognise I'm probably wrong, even though I don't know where my mistake is. Is this related to why some people say "it's all van der Waals forces, nothing to do with quantum effects!"? [link] [comments]  |
| Posted: 13 May 2016 08:40 PM PDT E.g., some string theories tell us that the universe might be 10+1D—ten space dimensions, one time dimension. Has there been any theoretical work on the physics of a universe that's, for example, 3+2D (or more generally, x+yD where y>1)? [link] [comments]  |
| Posted: 13 May 2016 04:24 PM PDT By observe I mean seeing it's particles or what ever it is like we can see quarks by smashing other particles and etc. [link] [comments]  |
| Am i correctly following Newton's Laws? Posted: 13 May 2016 03:50 PM PDT I recently just got into physics (I'm 16) and was told that the earth (gravitationally) is just as attracted to us as we are to it (around 9.8m/s2) If this is the case, using f=ma or a=f/m i came to the conclusion that the earth accelerates towards us at a speed of approximately 1.633333 x 10-24 metres per second squared. This sounds reasonable but i was just wondering if this is accurate in any way? [link] [comments]  |
| [Physics] Is anything in the universe completely stationary? Posted: 14 May 2016 05:04 AM PDT |
| How are the methods of integration and differentiation derived? Posted: 13 May 2016 12:36 PM PDT I'm assuming you can, but what I'm curious about is how one can know that the integral of x2 for instance is 1/3 x3 + c, and conversely the derivative of x2 is 2x. How do we know that you carry the power down into a constant and then subtract the power by 1 (other than "it just works")? Where did these methods come from? Chain rule? Product rule? [link] [comments]  |
| If the Earth was compressed into a black hole, would it continue to orbit the sun? Posted: 13 May 2016 06:57 PM PDT If the earths mass was compressed into an area smaller than its schwarzschild radius while still orbiting the sun, assuming that the black hole did not lose any mass due to evaporation, would it continue its orbit unaffected? [link] [comments]  |
| Why do the recently detected gravitational waves lose energy over time? Posted: 13 May 2016 10:15 PM PDT From what I understand the amplitudes of these waves begin very large but then dissipate as they propagate further from their point of origin. Where does the corresponding energy go? Is its transformation an intrinsic property of spacetime or the result of collisions with objects having mass? Is the reduction of their energy constant in all directions? [link] [comments]  |
| How deep can a chasm caused by an Earthquake be? Posted: 13 May 2016 09:29 PM PDT In the moviie San Andreas there's an earthquake where two plates move away from each other and things fall into the abyss. In real life, how deep can these get? [link] [comments]  |
| Why is x*y=y*x? Is there a proof for this? Posted: 13 May 2016 12:02 PM PDT I know that if you multiply numbers, the order of these numbers doesn't change the result. For instance, 3x5=5x3=15. But why is this? And is there a proof? Edit: forgot "x" between numbers. [link] [comments]  |
| Posted: 13 May 2016 04:58 AM PDT |
| Earthquake Monitors at Bottom of Marianas Trench? Posted: 12 May 2016 11:22 PM PDT Hi, So I recently have been looking at alot of videos on tsunamis, particularly the one that almost hit Guam back when my family was stationed there in 2011. An that led to Earthquakes. Which led to me reading about Earthquake monitoring technology. From my understanding Earthquakes develop deep into Earths crust and the upper mantle. And the majority of them originate in the pacific ocean. From my current knowledge Earthquakes can only be predicted minutes before they happen, And there are a few ways that they can be predicted, most of which rely on fault lines. My proposal is to place monitoring devices along the Marianas Trench, the deepest point on Earth, I understand that there is immense pressure down there, but we have made strong enough cameras to dive to challenger deep before so I assume this would be possible. The trench is much deeper than other fault lines and in theory should give much more response time to pacific islanders, and possibly enough for a helicopter to catch footage of a Tsunami formation, something that has never been caught before up close. Please let me know if my reasoning is completely flawed or if this is already happening, I'm only 14 so there's a good chance I'm completely wrong :) TL:DR I have an idea to place Earthquake monitoring devices along the Marianas trench to give more Earthquake response time to Pacific Islanders. [link] [comments]  |
| Why do the seasons match up with the length of the year? Posted: 13 May 2016 11:12 AM PDT So as I understand it the seasons are caused by the tilt of the earths axis. As it goes around the sun it wobbles (the axis) so that during the summer (I live in the US) the northern hemisphere is tilted closer to the sun and in the winter it's tilted away. My question is why is the period of the wobble of the axis the same as the period for the earths orbit around the sun? Or, at least, they seem to be the same, summer and winter are during the same months every year. [link] [comments]  |
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