Where is dark matter theoretically? |
- Where is dark matter theoretically?
- How does heat dissipation work in space (feel free to be technical)?
- AskScience AMA Series: We are geoscientists, emergency managers and communication specialists working on the ShakeAlert earthquake early warning system in CA, OR and WA. Ask us anything!
- Why haven't more traditional methods of making vaccines been successful in the case of Covid-19?
- If you put ice in a vacuum sealed container and the ice melts, does the vacuum get stronger since the volume decreased?
- Antibody titers after COVID 19 vaccine?
- How long does it take your cells to read the mRNA (from the Pfizer/Moderna vaccine) and then create the spike protein? Does it happen relatively instantly or take some time? Does your immune response also react immediately to the presence of the spike protein?
- Will individualized cancer vaccines be possible using technology that created the RNA coronavirus vaccine?
- When writing the wave function for the shrodinger equation for a two particle system, why can you assume that the wave function can be written as a product of the two states of the particles?
- What did Oceania and the South Pacific look like during the Paleolithic period? Was there significantly more land above sea level?
- How did scientists figure out that coal came from plants?
- How do we know it's Hg2I2 and not HgI?
- What is the difference between corrosion (e.g. steel rusting in a marine environment) and hydrogen embrittlement? Can both occur at the same time?
| Where is dark matter theoretically? Posted: 17 Feb 2021 05:53 PM PST I know that most of our universe is mostly made up of dark matter and dark energy. But where is this energy/matter (literally speaking) is it all around us and we just can't sense it without tools because it's not useful to our immediate survival? Or is it floating around the universe and it's just pure chance that there isn't enough anywhere near us to produce a measurable sample? [link] [comments]  |
| How does heat dissipation work in space (feel free to be technical)? Posted: 17 Feb 2021 05:52 PM PST I never really gave much thought into how systems cool themselves in space, but they obviously can't use cooling through air convection. However, I know that the ISS uses radiators. So the only thing that they can dissipate heat is through radiation, right? How efficient is that? For example, parts of the ISS use Ammonia to circulate heat. If I had X liters of Ammonia flowing evenly through a radiator system of area Y at Z degrees Celsius, how long would it take for the Ammonia to reach temperature T? Feel free to be as technical as you want, I come from a science and math background. In fact, I would even appreciate if someone could provide me with information or equations that I could use to calculate or estimate heat dissipation in space systems. [link] [comments]  |
| Posted: 18 Feb 2021 04:00 AM PST We are geoscientists, emergency managers and communication specialists working on the Pacific Northwest ShakeAlert earthquake early warning system in CA, OR and WA.
We're here to raise awareness and answer questions about the new early earthquake warning system, earthquakes and Pacific Northwest hazards in general. We'll be on at 11-2 PST (2-5 ET, 19-22 UT), ask us anything! Username: /u/IRIS_Earthquakes [link] [comments]  |
| Why haven't more traditional methods of making vaccines been successful in the case of Covid-19? Posted: 18 Feb 2021 01:11 AM PST I know the mRNA and adenovirus methods have yielded positive results, but why have protein/subunit and attenuated virus vaccines shown less promise? [link] [comments]  |
| Posted: 17 Feb 2021 01:12 PM PST |
| Antibody titers after COVID 19 vaccine? Posted: 17 Feb 2021 08:34 PM PST What do we know about antibody titers and timing in relation to first and second shots of Pfizer (+/-Moderna)? Any good sources out there? Haven't run across a good summary anywhere, thought someone here may have. Specifically, when would one expect to test positive for antibodies after receiving both doses of an mRNA vaccine? [link] [comments]  |
| Posted: 17 Feb 2021 06:49 PM PST |
| Posted: 17 Feb 2021 09:15 PM PST I know in biology class I learned that all cells have surface proteins. And these surface proteins can sometimes be different depending on the type of cell. I also know that the coronavirus vaccine uses RNA to make our immune system react to the coronavirus. Would we be able to use that same technology to create a unique vaccine for everyone to fight against their cancer cells? [link] [comments]  |
| Posted: 17 Feb 2021 11:31 PM PST Under what assumption does this hold? What about for entanglement? How would you set up an entangled system in the lab? [link] [comments]  |
| Posted: 17 Feb 2021 11:15 AM PST I've read about how glacier melt opened up tons of continental land mass, but now I'm wondering the opposite. With ocean level rises the past several thousand years, how many island networks were submerged? Continents even? [link] [comments]  |
| How did scientists figure out that coal came from plants? Posted: 17 Feb 2021 06:20 AM PST |
| How do we know it's Hg2I2 and not HgI? Posted: 17 Feb 2021 07:08 AM PST It's not a large question, but how can you know it's Hg2I2 and not HgI? Cause nothing seems wrong with HgI? [link] [comments]  |
| Posted: 16 Feb 2021 11:03 AM PST I'm in a class and the instructor seems to think that steel corroding in salt water would also cause hydrogen embrittlement. I was under the impression that you need a significant source of hydrogen atoms to diffuse into the steel, which is why electroplating, for example, causes it. Do the oxidation reactions in steel corrosion also free up a lot of hydrogen atoms? [link] [comments]  |
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