What actually happens when you get the wind knocked out of you? |
- What actually happens when you get the wind knocked out of you?
- Do gas giants like Jupiter contain heavy elements like gold etc?
- Do all metals corrode?
- Can electrons radiate in their eigenstate?
- What part of a volcanic eruption actually creates a powerful shockwave that can be heard loudly from far away?
- Heat death of the universe seems like a bleak future. Are there other, although maybe less plausible, alternatives that are more "optimistic"?
- What is the best way to store a battery when not in use?
- What do the bites of Aedes aegypti (a dengue-transmitting mosquito) look like?
- What are the actual benefits of store-bought milk having reduced or low fat content?
- Using a telescope, how likely is it that we could someday be able to see an event that took place, say, 50 years ago?
- Is there a delay between a star beginning fusion and light becoming visible?
- Are There Any Demarcations For The Interatrial Septum?
| What actually happens when you get the wind knocked out of you? Posted: 16 Nov 2019 02:16 PM PST |
| Do gas giants like Jupiter contain heavy elements like gold etc? Posted: 16 Nov 2019 09:06 AM PST |
| Posted: 16 Nov 2019 09:19 PM PST |
| Can electrons radiate in their eigenstate? Posted: 16 Nov 2019 03:46 PM PST I know electrons radiate at temperatures above 0k and when they experience electronic, vibrational, rotational excitation. I am aware of blackbody radiation but was wondering if electrons radiate in their eigenstate (particularly ground state). I dont know much quantum mechanics but i have heard people claim that electrons radiate when their is a superposition of eigenstates such that the probability density field of the electron(wave function squared) is time dependent and oscillating but when the probability density field is time independent there is no radiation, is this true? How can an accelerating charge not radiate even if its probability density field is static? Also is a superposition of eigenstates just an electronic excitation? Who can help me relate quantum mechanical nomenclature to classical view [link] [comments]  |
| Posted: 15 Nov 2019 07:16 PM PST Does the top of a volcano really blow off that hard that just the breaking of rock makes that sound? Or is it something to do with expanding gases too? [link] [comments]  |
| Posted: 15 Nov 2019 07:52 PM PST |
| What is the best way to store a battery when not in use? Posted: 15 Nov 2019 07:18 PM PST I have a question that's hard to ask. Say I take a battery and I use it until it's dead, I dont plan to use it anytime soon but i will want to use it in the future. To retain the best efficiency, should I always make sure there's at least a bit of charge in the battery or should it be left at 0%? I ask this because I'm not familiar with a batteries composition and optimal long term efficiency/storage rate. [link] [comments]  |
| What do the bites of Aedes aegypti (a dengue-transmitting mosquito) look like? Posted: 15 Nov 2019 07:33 PM PST Do they swell or itch? Is there any way you can tell if someone has dengue during the incubation period? [link] [comments]  |
| What are the actual benefits of store-bought milk having reduced or low fat content? Posted: 15 Nov 2019 03:30 PM PST |
| Posted: 15 Nov 2019 12:15 PM PST |
| Is there a delay between a star beginning fusion and light becoming visible? Posted: 15 Nov 2019 01:47 PM PST So I've heard on various science programs that a photon of light takes thousands, even millions of years to reach the surface of the sun because it bangs into so many particles along the way. If I were an observer one AU away from a star the size of our sun, looking at it just as fusion begins would it take millions of years for light to be visible to me? [link] [comments]  |
| Are There Any Demarcations For The Interatrial Septum? Posted: 15 Nov 2019 12:04 PM PST I know the atrioventricular groove has the coronary sulcus, and the interventricular septum has the anterior and posterior interventricular sulcuses, but what about the interatrial septum? Not a cardiac surgeon or anything, just a nursing student (who may eventually consider med school) that wants to know more about the A+P of the heart. [link] [comments]  |
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