How far do you have to go beneath the ocean floor before the earth becomes dry again? |
- How far do you have to go beneath the ocean floor before the earth becomes dry again?
- How did astronomers determine the mass of the rogue planet SIMP J01365663+0933473 if it’s not orbiting a star and has no known natural satellites?
- How does a herbivorous digestive system differ from a carnivorous one?
- Does artificial gravity require lots of energy to maintain rotation?
- Why are photons considered to be massless if mass is just "pent up energy"? Shouldn't photons simply have a very small mass related to the amount of energy they contain?
- What happens when our stomachs grumble?
- Lone pairs affect the angles of molecules, can they affect the strength of a bond?
- When were sonic booms first discovered?
- Why does wave diffraction happen?
- Are the isotope composition of a person of 1940, 1970 and 2018 different?
- When someone has some kind of head trauma what is it about keeping them awake that can keep them alive; and vice versa?
- Are terrastrial and marine food chains disconnected? If they are connected, how and to what degree?
- Why do non-Newtonian liquids behave differently than regular liquids?
- The number 8 in Einstein's General Relativity Field Equation feels arbitrary. Why 8?
- Why doesn’t California cloud seed more to help with dryness during the summer?
- Have we seen any evolution in nature due to the impact made by humans?
- Why can't we precisely compute orbits?
- Why are Geothermal Power Stations location-dependent when the Earth gets hotter as you go deeper no matter where you are?
- Could you orbit mirrors around the sun to make a laser to launch probes at nearby stars for fly through missions?
- Why is angular momentum conserved? Yes I know about Newton's laws regarding momentum, but why not just linear momentum?
- Why does locked knees cause fainting?
| How far do you have to go beneath the ocean floor before the earth becomes dry again? Posted: 03 Aug 2018 01:36 PM PDT If you dig deep enough through the ocean floor, assuming no water backfills your hole, how far until you reach dry crust again? Edit: clarification - how far down does the ocean saturate the earths crust. [link] [comments]  |
| Posted: 04 Aug 2018 08:00 AM PDT I heard about this planet yesterday from this post over at /r/space and haven't got an answer yet https://www.reddit.com/r/space/comments/94dfoe/astronomers_discover_a_bizarre_rogue_planet/ According to the post / article, the free-range planet is said to be 13 times the mass of Jupiter but does not orbit a star and no moons have been found yet. If this is the case, how could have astronomers determined its mass without looking at its gravitational effects on other bodies? [link] [comments]  |
| How does a herbivorous digestive system differ from a carnivorous one? Posted: 04 Aug 2018 05:47 AM PDT |
| Does artificial gravity require lots of energy to maintain rotation? Posted: 04 Aug 2018 06:54 AM PDT If there is a donut shaped room rotating at constant speed (along the axis through the center of donut), and two people standing at the opposite side of the room (heads facing center of donut of course), can the system theoretically spin at this rate without major loss in kinetic energy, just like how the earth is spinning? If so, would the two people be able to feel constant gravity for a very long time, making artificial gravity an extremely maintainable phenomenon? Yet it seems very hard and energy-consuming to implement in practice. [link] [comments]  |
| Posted: 04 Aug 2018 08:08 AM PDT Followup question: Would it theoretically be possible to slow a photon enough to measure its restmass or fire a knowable number of photons at a measurement device? [link] [comments]  |
| What happens when our stomachs grumble? Posted: 03 Aug 2018 05:33 PM PDT I'm sitting at home and my gut is trying it's best whale impersonation and it got me thinking, what exactly is happening? [link] [comments]  |
| Lone pairs affect the angles of molecules, can they affect the strength of a bond? Posted: 04 Aug 2018 03:49 AM PDT Lone pairs affect the angles of molecules, can they affect the strength of a bond? Besides repulsion, how else do they affect bonds between atoms? If some one could please help, thanks. Zackhie [link] [comments]  |
| When were sonic booms first discovered? Posted: 03 Aug 2018 03:30 PM PDT Were they discovered as the technology allowed aircrafts to travel faster than the speed of sound, thus creating the phenomena? Or were they theorized before technological capabilities allowed them fly at such speeds? [link] [comments]  |
| Why does wave diffraction happen? Posted: 04 Aug 2018 03:23 AM PDT I know that wave diffraction happens when a wave length is close to the size of the opening through which the waves passes. Only I've been wondering why the waves bend due to a small gap. The only thing I can find about diffraction is that it has to do with the relative size of the opening with the wavelength, but why makes said opening bend a wave? Thanks in advance! [link] [comments]  |
| Are the isotope composition of a person of 1940, 1970 and 2018 different? Posted: 03 Aug 2018 10:21 PM PDT Are any differences easy to detect? Would differences be dependent on where each person grew up, say near nuclear testing sites? [link] [comments]  |
| Posted: 03 Aug 2018 11:56 PM PDT |
| Are terrastrial and marine food chains disconnected? If they are connected, how and to what degree? Posted: 03 Aug 2018 02:22 PM PDT Does plankton end up in a cow living on a farm on a macroscopic scale? How about a terrastrial apex predator living hundreds, if not thousands of miles away from the closesr ocean? Is bottom of their food chain in the ocean? Is there research about this topic? I can not imagine them being disconnected, and I would really like to know how e.g. nutrients and vitamins end up from the ocean to our food plate (in form of terrastrial plants or meat). [link] [comments]  |
| Why do non-Newtonian liquids behave differently than regular liquids? Posted: 04 Aug 2018 05:26 AM PDT |
| The number 8 in Einstein's General Relativity Field Equation feels arbitrary. Why 8? Posted: 04 Aug 2018 01:26 AM PDT  I watched a couple of YouTube videos explaining the left and right side of the equations, but they don't touch on the number 8. Also there's a number 4. Why is C to the power of 4? [link] [comments]  |
| Why doesn’t California cloud seed more to help with dryness during the summer? Posted: 03 Aug 2018 04:59 PM PDT I know cloud seeding is used sometimes, but the research I've found says they mostly seed during the winter to help with snowfall. Why don't they cloud seed more during the spring? Is it just too dry to cloud seed? [link] [comments]  |
| Have we seen any evolution in nature due to the impact made by humans? Posted: 03 Aug 2018 04:25 PM PDT |
| Why can't we precisely compute orbits? Posted: 03 Aug 2018 06:31 PM PDT I know some of it is due to relativistic effects, but what natural forces/processes lead to the uncertainty? [link] [comments]  |
| Posted: 03 Aug 2018 04:46 PM PDT |
| Posted: 03 Aug 2018 06:24 PM PDT So, could you orbit a series of massive mirrors in the suns upper atmosphere to redirect, focus, and pump a beam? Then just fire the bastard at a target until it hit Plutos orbital neighborhood. Enough power and a light enough target could get you to a decent percentage of c before beam coherence became a limiting factor in accelerating - but ought to have enough oomph to power your probes. [link] [comments]  |
| Posted: 03 Aug 2018 10:03 PM PDT I've thought about this for a while. We all know the Earth keeps spinning because there is nothing to stop it, but if it is spinning, then any orientation on the Earth is changing direction constantly which to my small mind is a contradiction of the first law of motion. The next thing I thought of is centripetal force. If you spin a ball on a string your arm has to try hard to pull it inward. But I haven't found an answer that is satisfactory for me. Help! [link] [comments]  |
| Why does locked knees cause fainting? Posted: 03 Aug 2018 04:05 PM PDT When people stand in one place for a long time they are told to not lock their knees to prevent fainting. What do knees have to do with consciousness? [link] [comments]  |
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