What happens when photons collide? |
- What happens when photons collide?
- What makes Venus is the most shiniest planet of the solar system?
- Are 10G at a centrifuge for 10h the same as 100G for 1h? (in terms of separation etc)
- Meteorologists: Why or how is "tornado alley" shifting east?
- Can evolution explain how complicated defense mechanisms in human body were developed?
- If the mass and size of the universe are plugged into the schwartzchild radius, it’s a black hole. Why is this brushed off as a coincidence?
- Is the R-Value social or scientific?
- What level of certainty is there regarding the arrangement of continents 10s-100s of millions of years in the future?
- What colors DO dogs see? Is it more fun for them to have toys of that color?
- Why are we able to get photos of distant galaxies with the Hubble space telescope that are more clear/focused than the photos of Pluto from it?
- Why do wooden matches in water stick together ?
- Do women have pain receptors that are homologous to testicle pain receptors?
- Why is SARS-COV both severe and acute?
- Do antibody studies of covid-19 provide a valid death rate estimate worth comparing to the flu?
- Is there a reliable scientific/medical journal study that studied effectiveness of masks during COVID?
| What happens when photons collide? Posted: 28 May 2020 04:35 PM PDT I know photons act like a wave and they go at the exact same speed as each other. What if they had a perfectly straight collision trajectory and slammed into each other? Would they recede like normal waves? [link] [comments]  |
| What makes Venus is the most shiniest planet of the solar system? Posted: 29 May 2020 03:09 AM PDT Is it the chemical composition of Venus atmosphere or its weather phenomena what generates the shiny optics phenomena? What is the physics process of this phenomenon? [link] [comments]  |
| Are 10G at a centrifuge for 10h the same as 100G for 1h? (in terms of separation etc) Posted: 29 May 2020 05:37 AM PDT |
| Meteorologists: Why or how is "tornado alley" shifting east? Posted: 28 May 2020 09:21 AM PDT I'm sorry about the flair I was hoping for a meteorology tag. [link] [comments]  |
| Can evolution explain how complicated defense mechanisms in human body were developed? Posted: 29 May 2020 05:47 AM PDT How does evolution explain complicated defense mechanisms such as adaptive immunity in human body? Can mutations alone develop such complicated processes? Have we slowed down the evolution process with technology? [link] [comments]  |
| Posted: 28 May 2020 09:52 PM PDT |
| Is the R-Value social or scientific? Posted: 29 May 2020 03:57 AM PDT I'm not sure if this makes sense but basically I was wondering whether the r-value for covid was altered by our actions as people (eg by social distancing and self isolating) or whether it was some scientific about the virus itself. If the latter, I then would ask how it can change because surely the contagiousness of the virus wouldn't change? [link] [comments]  |
| Posted: 29 May 2020 02:38 AM PDT Earlier today I saw a map that showed current geopolitical boundaries, but over continents 50 million years in the future, and although interesting I was curious if that level of specificity was actually defensible. I understand movement speed and directionality of plates are derived from seafloor spreading rates and probably satellite telemetry to some extent (?), but it seems like with so many plates subject to static forces and compositional differences in crust (?) there may be some significant stochasticity at play the further in the future we project (as with many things, but neither here nor there). On the other hand we might be quite confident in what the ebb and flow of future super-continents and subsequent fracturing will look like, just not sure. Sophisticated simulations are probably invoked these days. Thanks! [link] [comments]  |
| What colors DO dogs see? Is it more fun for them to have toys of that color? Posted: 28 May 2020 03:58 PM PDT |
| Posted: 28 May 2020 02:37 PM PDT |
| Why do wooden matches in water stick together ? Posted: 28 May 2020 04:18 PM PDT If you submerge two matches in water and then put them in a bowl of water so that they are touching on some point, they start moving towards each other and end up parallel. What´s happening there ? Does it have to do with the suface tension of the water or with the wood ? [link] [comments]  |
| Do women have pain receptors that are homologous to testicle pain receptors? Posted: 28 May 2020 03:28 PM PDT Basically, do women have some hypothetical potential to experience the pain of "having someone step on your balls"? Or are those homologous receptors repurposed in women to perceive something completely different? [link] [comments]  |
| Why is SARS-COV both severe and acute? Posted: 28 May 2020 01:30 PM PDT I thought severe and acute are synonyms and either one could have been used to describe the disease but not both. Are there certain criteria or scientific definitions that warranted the use of both words? A bit of a random question I have stuck in my head... any response is appreciated! [link] [comments]  |
| Do antibody studies of covid-19 provide a valid death rate estimate worth comparing to the flu? Posted: 28 May 2020 09:46 AM PDT I heard on NPR a recent study indicated that the death rate of covid, according to antibody studies, indicates the death rate of infection is closer to .6%. The reported then compared that number to the often cited .1% death rate for seasonal flu. Is that a valid comparison? Are serological studies done on seasonal flu? Do such studies provide a reasonable estimate for time frame of infection that would be needed to make a death rate estimate? [link] [comments]  |
| Posted: 28 May 2020 10:14 AM PDT I am under the impression that it's helpful to wear a mask and even more so that it doesn't hurt to wear a mask, but I would be interested in reading a non-government source that has conducted a quality study on it. I haven't found anything that seemed overtly qualified from my Google searches, but I am not necessarily adept at finding such things. [link] [comments]  |
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