Are there any (currently) unsolved equations that can change the world or how we look at the universe? |
- Are there any (currently) unsolved equations that can change the world or how we look at the universe?
- How was Avogadro's number derived?
- How can blast waves be supersonic? Aren't all longitudinal waves limited by the speed of sound in the medium?
- How long does it take for two celestial bodies to become tidally locked? What does the transition from being not tidally locked to being tidally locked look like?
- How long does it take for glacial ice to re-form?
- What is the composition of Adipose Tissue?
- How come altitude doesn't affect dew point?
- Runaway High-Q Optical Resonator?
- [biology] Is a strawberry runner a brand new plant?
- When black holes collide, is there an explosion and why?
- How do medications cause you to gain or lose weight as a side effect?
- What method do they use to date wooden artifacts?
| Posted: 03 Aug 2019 09:57 PM PDT (I just put flair as physics although this question is general) [link] [comments]  |
| How was Avogadro's number derived? Posted: 03 Aug 2019 06:23 AM PDT We know that there is 6.02x1023 atoms in 12 grams of carbon-12, but how was this number came up from? [link] [comments]  |
| Posted: 04 Aug 2019 02:05 AM PDT Alternative question: What determines whether a wave will be subsonic, transonic, or supersonic? What characteristics does a wave need to have to break the sound barrier? [link] [comments]  |
| Posted: 04 Aug 2019 03:59 AM PDT I'm wondering, specifically, if there's any "overshoot" right as tidal locking occur. Does one body simply rotate slower and slower, until it's rotation comes to a stop relative to the other body, or does it "overshoot" and reverse its direction of rotation before becoming tidally locked? [link] [comments]  |
| How long does it take for glacial ice to re-form? Posted: 03 Aug 2019 10:27 PM PDT Refer to this article, Greenland lost 11 billion tons of ice in a single day. How long will it take for this ice to form again? How long does it take for a glacier to form; and in case of an event like this where 197 billion tons of ice melted last month, will it ever come back to original proportions? [link] [comments]  |
| What is the composition of Adipose Tissue? Posted: 04 Aug 2019 01:35 AM PDT I'm looking for the molecular or chemical makeup of adipose tissue (not necessarily its cell bio) to determine the triglycerides degree of saturation. To consider: when you buy a steak and you have the white fat that is either marbled in or on the side, I'm assuming it's a saturated fat purely based on its density. Is this hypothesis correct? Can anyone give me a direction or resources to look into? Thank you!! [link] [comments]  |
| How come altitude doesn't affect dew point? Posted: 03 Aug 2019 11:43 PM PDT Wouldn't water condense faster with low altitude higher pressure, and condense slower with high altitude lower pressure? With air pressuring the water molecules together, at sea level, wouldn't that facilitate condensation? [link] [comments]  |
| Runaway High-Q Optical Resonator? Posted: 03 Aug 2019 08:53 AM PDT What happens if you pump an optical resonator like a LASER, but don't let the radiation out? Like If you had a ruby laser without the semireflective mirror to let the energy out? What are the frame-by-frame details? [link] [comments]  |
| [biology] Is a strawberry runner a brand new plant? Posted: 03 Aug 2019 07:21 PM PDT I was discussing the longevity of strawberry plants, which most sources say is 3-4 years. The person I was talking to said that, sure, each plant only bares fruit that long but they have runners to reproduce. My thinking on this, though, is that, if the runner is directly from the plant and not a germ cell (seed), then it's clock is identical to the mother plant. Or is this incorrect? Are runners brand new plants with a restarted 3-4 year life span? I've Goggled a bunch and not found the answer. Thank you for increasing my knowledge of biology! [link] [comments]  |
| When black holes collide, is there an explosion and why? Posted: 03 Aug 2019 01:17 PM PDT Nothing can escape a black hole, yet when things collide they release energy. What happens when black holes collide? [link] [comments]  |
| How do medications cause you to gain or lose weight as a side effect? Posted: 03 Aug 2019 01:12 AM PDT If you eat exactly the same on and off a medication could it make you gain or lose weight? (Not just water weight, but actual weight in the long term.) I thought weight was just the difference between calories in and calories out, so I don't understand how this happens, but I've definitely gained weight from medications. Do these meds actually just affect appetite and make you eat more? Or does it affect your metabolism and make you burn fewer calories or something? Finally, what stuff in medications lead to side effects that involve weight gain? [link] [comments]  |
| What method do they use to date wooden artifacts? Posted: 03 Aug 2019 03:18 AM PDT I was wondering, can they use carbon dating, or is that just for animals that have consumed carbon-14. And is tree ring dating pretty much useless due to the fact that the wood would have been shaped (pardon the pun). [link] [comments]  |
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