What stoppped the spanish flu? |
- What stoppped the spanish flu?
- Why does it take a year or more to develop vaccines?
- Why do eutectics sometimes form in alloys?
- How does your body 'know' when to give you a fever?
- Why is fluoride good for your teeth?
- How does a virus 'decide' who will be an asymptomatic carrier?
- What happens when a device goes “supercritical”?
- How do Electron Orbitals Intersect?
- When does an object reach maximum velocity after an impact?
- What would the magnetic field of a monopolar magnet look like?
- What methods are used to predict the "island of stability" in nuclear physics?
- How do scientists find out the composition of materials?
- Does vitamin D production still work if the sunlight has passed through a window?
- How does raised intracranial pressure cause systemic hypertension?
- If printing more money raises inflation, then what happens if we print less money?
| What stoppped the spanish flu? Posted: 07 Mar 2020 10:04 AM PST |
| Why does it take a year or more to develop vaccines? Posted: 07 Mar 2020 10:19 PM PST I've read that vaccines work by introducing a mild version of the virus to the body so that it can develop an immune response. Also have heard that the entire genome sequence of COVID-19 and other viruses are uploaded online. So what's the rate determining step here? Also related, of what use is making public the genome sequence of these viruses? And why can't it be used in biological warfare? [link] [comments]  |
| Why do eutectics sometimes form in alloys? Posted: 08 Mar 2020 01:11 AM PST Why do eutectics sometimes form in alloys? https://en.wikipedia.org/wiki/Eutectic_system [link] [comments]  |
| How does your body 'know' when to give you a fever? Posted: 07 Mar 2020 03:35 PM PST When you get a common cold, you don't get a fever. When you get the flu, you often do to kill the virus in your system. What determines whether your body goes into a fever or not and how does it know when to do it? [link] [comments]  |
| Why is fluoride good for your teeth? Posted: 07 Mar 2020 05:23 PM PST I'm particularly interested in any knowledge of the biochemical pathways by which fluoride strengthens teeth and fights cavities. It's been particularly hard to find answers via google because it returns tons of pages discussing the controversy around it, but I'm interested in the science. [link] [comments]  |
| How does a virus 'decide' who will be an asymptomatic carrier? Posted: 07 Mar 2020 10:04 PM PST |
| What happens when a device goes “supercritical”? Posted: 08 Mar 2020 07:05 AM PDT I was reading about the demon core and it's almost-usage In a third nuclear bomb on Japan. Apparently sometime after this, two separate people accidentally made the core go "supercritical" and died of acute radiation sickness not too long after. What exactly does it mean when they say the demon core was going supercritical, and what would the outcome be if it wasn't stopped? [link] [comments]  |
| How do Electron Orbitals Intersect? Posted: 07 Mar 2020 07:22 PM PST I'm a chemical engineering student and I wanted to know, how do orbitals intersect? I know the shapes and all, and I know how the orbitals have directions in larger shells but when you have some s2 buds and some dudes filling p2 does that change the shape of the s2 guys or is it that the s2 electrons stay in their sphere when the p2 electrons are in their weird little infinity loops? [link] [comments]  |
| When does an object reach maximum velocity after an impact? Posted: 07 Mar 2020 04:14 PM PST I'll make the question a bit more specific and I'll try to stick to one single problem, but I will see how it goes because I think different situations could produce different answers. So I got into an argument with a friend about when does a puck reach maximum velocity after a shot. I was confident that it's right at the moment of a shot and then the friction and air resistance (and maybe some other forces?) makes the puck loose speed. Right? It sounds very logical and probably is true, but we both like to look at the world from its smallest possible parts to the largest. Well, this is where my friend confused me. And this is where I will also branch out the question because I feel these two situations could have different answers. The first situation would be a normal hockey shot. Puck which is not moving comes in contact with a fast-moving stick. Stick is pushing the puck for a while and then leaves the stick. And as soon as it does it starts losing speed. I feel like that's correct. But what if we look at the time frame from when the stick first touched the puck? The second situation is a bit more trivial. What if the stick did not do the "pushing" motion. What if it was truly a hit where as soon as the stick hit the puck it stopped. (I now feel like this is a really trivial action) When does the puck reach max velocity? I thought this wouldn't be different than the first problem. But wouldn't that mean that the puck went from 0m/s to its max velocity instantaneously making the acceleration of the puck infinite? I can see two outcomes of this. Eather I was not aware that acceleration can actually be infinite at a single point or "instantaneously" is not a term in physics and the puck takes time to reach max velocity. Which one is it? So... To sum up my questions. What happens in a normal hockey shot? Stick hits the puck, the stick loses some minimal amount of speed to gradually start accelerating the puck and the puck reaches the max velocity right at the end of the shot. (Correct? Any details to add?) How trivial is the second situation? What exactly makes it trivial? And what happens in this trivial or similar, more possible, situation? Extra... Because I think the forces in action could be more visible in the world with two heavier, more friction receiving and, in this context, more flexible objects - when does a stopped vehicle reach maximum velocity after it gets hit by another vehicle? P.S. Extra street cred for videos explaining this or tbh any interesting physics videos. +1 for great, basic quantum mechanics explanation videos. If you feel like you could write a book about this - please do! [link] [comments]  |
| What would the magnetic field of a monopolar magnet look like? Posted: 07 Mar 2020 07:14 AM PST |
| What methods are used to predict the "island of stability" in nuclear physics? Posted: 07 Mar 2020 10:39 AM PST Is it QCD (chiral effective field theory), many body theory or something else? [link] [comments]  |
| How do scientists find out the composition of materials? Posted: 07 Mar 2020 07:35 AM PST |
| Does vitamin D production still work if the sunlight has passed through a window? Posted: 07 Mar 2020 07:34 AM PST |
| How does raised intracranial pressure cause systemic hypertension? Posted: 07 Mar 2020 11:07 AM PST |
| If printing more money raises inflation, then what happens if we print less money? Posted: 07 Mar 2020 07:22 AM PST |
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