Why are there mountains on Mars that are much higher than the highest mountains on other planets in the solar system? |
- Why are there mountains on Mars that are much higher than the highest mountains on other planets in the solar system?
- If particles are point-like, how are they not gravitational singularities?
- I heard this claim that 8000 years ago, Taklamakan Desert was a lake as big as the Black Sea. Is this true?
- Is there any research on a 'Call of Duty' game effect and younger adults joining the military?
- How is the Polar Star possible?
- If we know that the enthalpy of a reaction is x kJ/mol, how can we find the enthalpy of the products and reactants?
- How does the earth make water? Or is there a fixed supply.
- Has there ever been an experiment that showed that light can slow down in a vacuum?
- Is there a finite limit to how large/massive a star can be?
- If electric currents make magnetic fields, and electrons in atoms are constantly moving, why isn't everything magnetic?
- Why aren't there uuu and ddd nucleons?
- Do people with Situs Inversus (reversed/mirrored organs) tend more to left-hand dominance?
- How does habituation in the olfactory system work? If I habituate and then smell a stronger odor, is there something like a 'subtraction'?
- Why does global warming make certain areas colder than usual?
- Why does blood change color when exposed to bleach?
- Is there a correlation between intellect and happiness?
- Is the electromagnetic spectrum infinite?
- How fossil fuels are used to generate energy?
- Why are there no freshwater cephalopods?
| Posted: 09 Apr 2016 04:17 AM PDT There is Arsia Mons (5.6 mi), Pavonis Mons (6.8 mi), Elysium Mons (7.8 mi), Ascraeus Mons (9.3 mi) and Olympus Mons (13.7 mi) that are higher than Mount Everest (5.5 mi), earth's highest mountain (measured from sea level). All of those high mountains on Mars are volcanoes as well. Is there an explanation? [link] [comments]  |
| If particles are point-like, how are they not gravitational singularities? Posted: 08 Apr 2016 10:37 AM PDT I understand gravitational singularities are not a matter of mass, but density. I also understand that particle colliders have established an upper-limit to the volume of an electron. If the fundamental particles are truly point-like, then whatever their mass, they would necessarily form gravitational singularities. Would the event horizons of these particles themselves be extremely small? They would still undergo hawking radiation I presume, which would mean that they would evaporate rapidly..? I thought maybe the answer depends on quantum mechanics, that the wave-function means that though the particle is point-like its possible positions are distributed through space? But flipping the question around, what is the quantum state of a black hole? Does it too have a wave function, and is that wave function entirely contained within the event horizon? (apart from hawking radiation) Is this just the great unsolved problem in physics of reconciling gravity and quantum mechanics, the micro and the macro? [link] [comments]  |
| Posted: 09 Apr 2016 06:08 AM PDT |
| Is there any research on a 'Call of Duty' game effect and younger adults joining the military? Posted: 09 Apr 2016 06:47 AM PDT I was talking to a guy at work and his son is in the military and the son was trying to get out because it wasn't what he thought it was. [link] [comments]  |
| How is the Polar Star possible? Posted: 09 Apr 2016 05:59 AM PDT Polaris is a star that has appeared in the sky exactly (or very nearly) over the north pole. With the earth's poler axis constantly moving (earth orbit around sun, sun orbit around Galaxy center, etc.), how is it possible that the Polar Star is always in the same place relative to the earth? If it's a coincidence of stars path coinciding exactly with the north pole axis, it an incredible coincidence, isn't it? [link] [comments]  |
| Posted: 09 Apr 2016 03:29 AM PDT |
| How does the earth make water? Or is there a fixed supply. Posted: 09 Apr 2016 01:51 AM PDT |
| Has there ever been an experiment that showed that light can slow down in a vacuum? Posted: 09 Apr 2016 06:13 AM PDT Moreover, is it even possible for light to do so? I heard from a friend the other day that there was apparently some experiment that showed light can slow down in a vacuum, depending on where you point it. Apparently this is evidence for the matrix (this was on an episode of through the wormhole apparently ). Doesn't relativity depend on constant c in a vacuum? [link] [comments]  |
| Is there a finite limit to how large/massive a star can be? Posted: 09 Apr 2016 04:48 AM PDT We know of stars that exist such as VY Canis Majoris, NML Cygni, RW Cephei, and UY Scuti. They are all upwards of 2,000,000,000KM (roughly 1,250,000,000 miles) in diameter. So just how large can a star get? [link] [comments]  |
| Posted: 09 Apr 2016 05:16 AM PDT |
| Why aren't there uuu and ddd nucleons? Posted: 08 Apr 2016 07:25 AM PDT So to my understanding the nucleons are made of up and down only and have spin 1/2, while the delta baryons are u/d only and have spin 3/2. Why are there not uuu and ddd baryons with spin 1/2? [link] [comments]  |
| Do people with Situs Inversus (reversed/mirrored organs) tend more to left-hand dominance? Posted: 08 Apr 2016 03:05 PM PDT Wikipedia claims that globally humans are 87-92% right hand dominant. Situs inversus seems pretty rare at roughly 1 in 10,000. Do we have statistics on the handedness of those with Situs inversus? Bonus question: Do we know if right-left lateralization of brain function is reversed in people with Situs Inversus? [link] [comments]  |
| Posted: 09 Apr 2016 05:47 AM PDT Let's say I like to smell light citrus odors, but cannot stand strong citrus odors. During an experiment, I get exposed to a light citrus odor and habituate to it. What happens when I get exposed to the strong citrus odor (more or less) directly afterwards that habituation? Is there something like a 'subtraction'? Does the strong citrus odor appear different to me, maybe closer to a light odor, because some parts of it are ignored due to the habituation? [link] [comments]  |
| Why does global warming make certain areas colder than usual? Posted: 08 Apr 2016 10:05 PM PDT I ask because I see a friend from high school post "There are people complaining about global warming...its April 8th and there is a winter advisory in place?" So why is global warming making certain areas, in this example Wisconsin, have such sporadic and cold temperatures this year? [link] [comments]  |
| Why does blood change color when exposed to bleach? Posted: 09 Apr 2016 02:52 AM PDT I had a particularly bad nosebleed today (pronounced waterfall of blood) and I decided that I needed to disinfect my bathroom. I sprayed some Clorox cleaner (which contains a high bleach content) and saw that my blood not only washed down the sink, some of it hardened and even turned brown and black. Why does this happen? [link] [comments]  |
| Is there a correlation between intellect and happiness? Posted: 08 Apr 2016 08:18 PM PDT My shower thought for the day: Is there a correlation between how much you know and how happy you are? Is there a propensity for people who are constantly seeking out more information to be less happy? Are people who have no desire to learn more than what they learned early in life generally more content? Is there scientific basis for the phrase "ignorance is bliss"? Why is being a "know it all" frowned upon by the vast majority? [link] [comments]  |
| Is the electromagnetic spectrum infinite? Posted: 08 Apr 2016 10:24 PM PDT |
| How fossil fuels are used to generate energy? Posted: 09 Apr 2016 03:32 AM PDT |
| Why are there no freshwater cephalopods? Posted: 09 Apr 2016 02:36 AM PDT This question has been bugging be for a while. Plenty of other classes of animal exist in both freshwater and marine environments: fish, bivalves, crustaceans, even hydrozoans. Why are there no freshwater cephalopods? Is it possible that they exist, but we haven't seen them yet? [link] [comments]  |
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