Are there ocean deserts? Are there parts of the ocean that never or rarely receive rain? |
- Are there ocean deserts? Are there parts of the ocean that never or rarely receive rain?
- Can Nuclear Reactors Become More Fuel Efficient?
- [Experiment] Which method would get the boiled water to lower temperature within the same amount of time?
- Can something be in a superposition between existing and not existing?
- What kind of research has been done for reliable long range communications?
- How do you calculate the coefficients of a polynomial regression?
- Is the charge of an electron an average?
- Does microwaving food really destroy nutrients?
- Why is it so difficult for particle accelerators to increase in energy, seeing as you need about 10000000 Tev for ~one Joule?
- Are there ocean dead zones where there is little or no life activity? If so why do they exist?
- Why is there a need for bigger particle accelerators? If we need to accelerate a particle to a higher speed, can't we just make it go several laps?
- What are the dangers of Particle Accelarators?
- Why not send a drone to Mars that can recharge with solar panels?
- Does elevation change affect birds the same way it affects humans? (Or any other land animal for that matter)
- What is the inner and outer horizon on a black hole?
- What is the speed of light moving relative to?
- If global warming is occurring, why haven't the sea levels risen?
- According to a recent study, oxygen levels in the ocean show signs of decreasing, around 2% less. Predictions for the end of the century were 7% less. What would happen to sea life in that scenario?
- Is it possible to seed the clouds so that the heavy rains that are causing problems in California release their water over the Pacific Ocean before reaching land?
- How does underwater pressure work in a cave system?
- [Physics] Is there zero point energy in liquids?
- What determines the top speed of an electric car, besides software limits?
| Are there ocean deserts? Are there parts of the ocean that never or rarely receive rain? Posted: 19 Feb 2017 04:18 PM PST |
| Can Nuclear Reactors Become More Fuel Efficient? Posted: 20 Feb 2017 06:56 AM PST I'm trying to gauge whether demand for uranium will increase in a more or less linear manner with an increase of the number of reactors (and demand for energy), or whether technological advances in reactor design could result in greater fuel efficiency and therefore steady or even declining demand for uranium even as more reactors come online. So, is the amount of energy released directly linked to the amount of fuel present, or is it possible to do more with less? Thanks for any replies! [link] [comments]  |
| Posted: 20 Feb 2017 01:23 AM PST You have two cups half full with boiled water.
*Assuming all the variables are the same in both of the methods. In example, same water's starting temperature, cup's size and material, etc. Apologizes for the English, it's not my native language. [link] [comments]  |
| Can something be in a superposition between existing and not existing? Posted: 19 Feb 2017 11:50 PM PST I know that with quantum superposition that something can exist in two different places at the same time, but can something be in a super position between existing and not existing? and how would that work? [link] [comments]  |
| What kind of research has been done for reliable long range communications? Posted: 20 Feb 2017 03:30 AM PST I've wondered about this a few times while watching movies where they are sending communications that will take hours, days or even years to reach the destination. Is there any kind of protocol out there for reliable transfer of data over extremely long distances where the standard syn/ack process isn't feasible? If you're transferring to Mars you've got something like So my thought was something like you end up sending your data 2-3 times with interspersed checksums of sections of the package to allow verification and the ability to rebuild corrupted packets at the other end. I mean this is only from a few minutes of thinking about it and not a ton of knowledge of how the transfers would be done or how the rebuilding could be done. I know that with newsfeeds there is some ability to rebuild damaged packages when they arrive. I don't know how that is done so that might be reliant on the source server to just rebuild without having to completely re-download. Unfortunately googling about this doesn't bring up much since the results are generally inundated with "I'm in Australia, why is my game so slow" kind of questions. [link] [comments]  |
| How do you calculate the coefficients of a polynomial regression? Posted: 20 Feb 2017 02:00 AM PST I'm currently writing a java program that outputs an array of the coefficients for a polynomial regression. For example for a linear regression: I would take a data set and calculate $b{0}$ and $b{1}$. This is simple to do for a linear equation. I'm having difficulty understanding what to do for nth polynomial regressions however. Can someone give me a simple explanation for how to calculate the coefficients for a polynomial regression? [link] [comments]  |
| Is the charge of an electron an average? Posted: 19 Feb 2017 07:17 PM PST I know that the accepted value for the charge of an electron is 1.602e-19 C, but is this value the same for all electrons? [link] [comments]  |
| Does microwaving food really destroy nutrients? Posted: 19 Feb 2017 11:19 PM PST My mother always told me not to microwave food because it killed all the good nutrients. But if a microwave produces non-ionizing radiation, then is anything really being destroyed? [link] [comments]  |
| Posted: 19 Feb 2017 08:14 AM PST Couldn't we just pour an amount of energy measured in joules in, and see what happens? [link] [comments]  |
| Are there ocean dead zones where there is little or no life activity? If so why do they exist? Posted: 20 Feb 2017 12:32 AM PST |
| Posted: 20 Feb 2017 12:32 AM PST |
| What are the dangers of Particle Accelarators? Posted: 20 Feb 2017 03:06 AM PST Yesterday I went to a museum exhibition on the Large Hadron Collider, and I am interested to know if there are any dangers/cons with a particle accelerator other than of course the price. I understand there was some controversy with Stephen Hawking saying the God Particle could destroy the universe? Is this referring to the Higgs Boson discovered in 2012? Why could it destroy the universe? I am writing my high school assignment on particle accelerators, and one of the criteria is to assess the pros and cons of using them (most people for the assignment are doing Nuclear power plants or Medicine, so instead I decided to do something more interesting). [link] [comments]  |
| Why not send a drone to Mars that can recharge with solar panels? Posted: 19 Feb 2017 10:43 PM PST Since the Martian atmosphere is 0.6% of Earth's air density, the propellers will have to generate 166.6 times more thrust. However, since gravity is only 38% of Earth, 166.6 x 0.38 = 63.3 times more thrust. Why not increase the size of the propellers 8 fold? This will create 64 times the surface area and 64 times the thrust. Spinning huge propellers shouldn't be a problem because they won't face much air resistance. [link] [comments]  |
| Posted: 19 Feb 2017 03:14 PM PST |
| What is the inner and outer horizon on a black hole? Posted: 19 Feb 2017 09:56 AM PST My question originates from this sentence on the Wikipedia page about the black hole in S5 0014+81: "The Schwarzschild radius of this black hole is 118.35 billion kilometers. So, this black hole has an external horizon showing a diameter of 236.7 billion kilometers" I thought that the event horizon is formed at the Schwarzschild radius of an object. I have seen diagrams of Kerr black holes displaying an inner and outer horizon but I do not understand what that means. [link] [comments]  |
| What is the speed of light moving relative to? Posted: 19 Feb 2017 08:00 PM PST My longer question is this: If, for example, a planet launches a spaceship in the direction of their momentum that is going the planet's speed +1/10th the speed of light... then the ship launches a shuttle in the same direction that is going the planet's speed + the ship's speed +1/10th the speed of light. After 10 iterations, would the last object be going the speed of light relative to the planet? Or am I completely misunderstanding physics? [link] [comments]  |
| If global warming is occurring, why haven't the sea levels risen? Posted: 20 Feb 2017 03:12 AM PST Not a climate change denier, just genuinely curious. [link] [comments]  |
| Posted: 19 Feb 2017 04:10 PM PST |
| Posted: 19 Feb 2017 06:21 PM PST I'm referring to the story in the link below where the "atmospheric river" looks narrow enough to focus your cloud seeding efforts on. [link] [comments]  |
| How does underwater pressure work in a cave system? Posted: 19 Feb 2017 02:06 PM PST If you're in an cave system on the ocean floor, is the pressure the same in said cave as outside at the same depth of any given point of the cave? Or more? Or less? [link] [comments]  |
| [Physics] Is there zero point energy in liquids? Posted: 19 Feb 2017 03:32 PM PST Do liquids have bulk vibrational states like phonons in solids? [link] [comments]  |
| What determines the top speed of an electric car, besides software limits? Posted: 19 Feb 2017 06:36 PM PST Related question: what about the max RPM of an electric motor not attached to a car? My understanding is that an electric motor can spin as fast as you can alternate the current, until some kind of counteracting force becomes too strong or the motor destroys itself. [link] [comments]  |
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