How do flu/cold viruses survive lockdown? |
- How do flu/cold viruses survive lockdown?
- AskScience AMA Series: I'm Ainissa Ramirez, a materials scientist (PhD from Stanford) and the author of a new popular science book that examines materials and technologies, from the exotic to the mundane, that shaped the human experience. AMA!
- Why galaxies are flat? Why there are no spherical galaxies but only disc shaped galaxies?
- Why does the voltage increase while the current decreases in transmission lines, but in Ohm's Law its states that voltage and current are directly proportional to each other?
- How do they provide astronauts with oxygen on the ISS?
- How does someone determine the difference between a continent and an island?
- In the context of immunology, what is self tolerance? Is it good or is it bad?
- What is the relationship between RF trace impedance and current consumption?
- Can a bluetooth device tell how far away another bluetooth device is?
- Is the Earth's core under extreme pressure at its very center?
- Why is it so rare for diseases to jump species?
- How did they get the entire ISS into orbit? It seems like a small rocket is hard enough..?
- Are there diagnostic tests for COVID that don’t use genetic material? How do/would they work?
- How do cats carry their kittens using their mouth without hurting it? They have sharp teeth.
- How does day/night work on Europa?
- How Do Emergency Vehicles Navigate Sandstorms?
| How do flu/cold viruses survive lockdown? Posted: 01 Jun 2020 05:14 PM PDT I live in New Zealand where the coronavirus is nearly eliminated because of the lockdown. However we are being advised to get flu shots. How is it that the lockdown eliminated covid but not all the other cold/flu viruses (which have a lower R naught value)? Where are the viruses being introduced from if no one is entering the country without going into two week quarantine? [link] [comments]  |
| Posted: 02 Jun 2020 06:08 AM PDT My name is Ainissa; thrilled to be here today. While I write and speak science for a living these days - I call myself a science evangelist - I earned my doctorate in materials science & engineering from Stanford; in many ways that shaped my professional life and set me on that path to write "The Alchemy of Us: How Humans and Matter Transformed One Another." I'm here today from 12 - 2 pm EST (16-18 UT) to take questions on all things materials and inventions, from clocks to copper communication cables, the steel rail to silicon chips. And let's not forget about the people - many of whom have been relegated to the sidelines of history - who changed so many aspects of our lives. Want to know how our pursuit of precision in timepieces changed how we sleep? How the railroad helped commercialize Christmas? How the brevity of the telegram influenced Hemingway's writing style (and a $60,000 telegram helped Lincoln abolish slavery)? How a young chemist exposed the use of Polaroid's cameras to create passbooks to track black citizens in apartheid South Africa, or about a hotheaded undertaker's role in developing the computer? AMA! Username: the_mit_press [link] [comments]  |
| Why galaxies are flat? Why there are no spherical galaxies but only disc shaped galaxies? Posted: 02 Jun 2020 05:52 AM PDT Gravity should be same in all 3 dimensions then why galaxys are flat , and we don't see a sphere with a black hole at the centre and stars revolving around it around the whole sphere, why disc shape? [link] [comments]  |
| Posted: 02 Jun 2020 06:14 AM PDT |
| How do they provide astronauts with oxygen on the ISS? Posted: 01 Jun 2020 11:13 AM PDT |
| How does someone determine the difference between a continent and an island? Posted: 02 Jun 2020 03:03 AM PDT As far as I know, a continent is basically a huge island? Is there sone sort of measurements or anything that determine what's a continent and what's an island? [link] [comments]  |
| In the context of immunology, what is self tolerance? Is it good or is it bad? Posted: 01 Jun 2020 07:29 PM PDT |
| What is the relationship between RF trace impedance and current consumption? Posted: 01 Jun 2020 06:25 PM PDT I am currently doing RF impedance matching by changing the values of the components and I noticed that the current consumption also changed. I know that in order to achieve maximum power output is I have to have a similar impedance as the receiver (50 ohms) and I am trying to get as close to that but the effect on the current is something I did not expect. [link] [comments]  |
| Can a bluetooth device tell how far away another bluetooth device is? Posted: 01 Jun 2020 02:46 PM PDT The UK gov have made an app, which will apparently detect if you've come in contact with someone carrying covid-19, and alert you to isolate etc.. Can bluetooth/telephones even do this to any kind of accuracy? Or is this literally if it detects a bluetooth from another car on the m25, it'll register as a hit.. [link] [comments]  |
| Is the Earth's core under extreme pressure at its very center? Posted: 01 Jun 2020 11:30 AM PDT This question might be a bit dumb, but I learnt that at the absolute center of the earth the gravitational force is zero, so I would assume that also the pressure would be near or at zero. Am I correct with this assumption or is the pressure still extremely high? [link] [comments]  |
| Why is it so rare for diseases to jump species? Posted: 01 Jun 2020 12:51 PM PDT Not Covid related specifically, but more generally I've been wondering something for a while - why is it so rare for diseases to jump species? I get that it's rare, and that places like wet markets (or colonial era cities in squalor) help raise the odds of transmission, and also that I'm vastly oversimplifying. But what is happening in the body that makes it so resistant to diseases started in another species? A virus is a virus is a virus. Shouldn't a virus move just as easily between species as between individuals within it's own species? Don't all mammals have very similar cellular biology? [link] [comments]  |
| How did they get the entire ISS into orbit? It seems like a small rocket is hard enough..? Posted: 01 Jun 2020 10:39 AM PDT |
| Are there diagnostic tests for COVID that don’t use genetic material? How do/would they work? Posted: 01 Jun 2020 02:29 PM PDT I understand that the current approach for positive diagnosis of COVID-19 uses the RT-PCR method, which looks for the presence or absence of viral genetic material to confirm whether or not the person is infected. One problem with this approach is that a person who has recovered from COVID might still have the viral genetic material in their system but no "live" virus. In that case, the RT-PCR test could be a false indicator of potential infectiousness. Are there tests under development - or available for other viruses - that look for something that is a better indicator of infectiousness? For example, are there tests that look for the presence of viral proteins or which try to cultivate the virus in vitro to evaluate whether the person is infectious? What would it take to develop a similar test for COVID? [link] [comments]  |
| How do cats carry their kittens using their mouth without hurting it? They have sharp teeth. Posted: 01 Jun 2020 02:22 AM PDT |
| How does day/night work on Europa? Posted: 01 Jun 2020 04:10 AM PDT I understand that a year/day on Europa is 3.5 days (or 85 hours). Does this mean that there are 3 Earth days of Sun and 3 Earth days of Night on Europa? [link] [comments]  |
| How Do Emergency Vehicles Navigate Sandstorms? Posted: 01 Jun 2020 12:11 AM PDT I always assumed they used sonar and GPS, but my searches for sandstorm sonar keep turning up sandstorm detection in meteorology rather than technologies related to driving through such a storm. [link] [comments]  |
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