AskScience AMA Series: I'm Jason Schwartz, an expert on vaccine policy and COVID vaccination rollout, and a professor at the Yale School of Public Health. AMA! |
- AskScience AMA Series: I'm Jason Schwartz, an expert on vaccine policy and COVID vaccination rollout, and a professor at the Yale School of Public Health. AMA!
- Why do some people experience more side-effects from vaccines than others?
- What will happen when the center of the Milky Way galaxy ceases to exist?
- In late Spring 2020 several researchers around the world found traces of COVID in samples of things like sewage that were taken before the outbreak. Have any studies followed up on this?
- Why are AA and AAA batteries in remotes and other electronic devices typically placed alternately/in opposite directions of each other? Why isn't the standard for them to always be facing nipple up (as In the case of the apple magic mouse)?
- Might be a dumb question, but since the planets are affected by the Sun’s gravity (orbit), does that mean we are slowly moving toward the Sun since gravity pulls objects closer together?
- Why do we use FeCl3 in the production of Egyptian Blue and Prussian Blue?
- How do we know the "stable" isotopes don't just have absurdly long half-lives (as in several magnitutes times the age of the universe)?
- If it is impossible to go the speed of light, couldn't we figure out that "stopped" is in our universe?
- What percent of tap water/ bottled water is actually H2O?
- Is modern infrastructure heat dissipation a concern for global warming?
- Causes of watershed growth in connection with the position of a river?
- Why do cameras have focal lengths of, say, 18 to 135mm when the focal length can technically extend to infinity?
- Since when are we capable of analyzing water to find out its mineral content ?
- How are drugs (medicine) invented?
- If the cosmic microwave background redshifted to its current frequency since its formation, does this mean that the photons were once visible to the naked eye, since the wavelength must have passed from very short wavelength to visible light to microwave wavelength?
- What is the difference between xylem vessels and tracheids in plants?
- Do brains deteriorate like other organs when people are dying "of old age"?
| Posted: 11 Feb 2021 04:00 AM PST I'm a professor of health policy at the Yale School of Public Health. I focus on vaccines and vaccination programs, and since last summer, I've been working exclusively on supporting efforts to accelerate the development, authorization, and distribution of safe and effective COVID-19 vaccines. I serve on Connecticut's COVID-19 Vaccine Advisory Group, I testified before Congress on the FDA regulation of these vaccines, and I've published my research and perspectives on COVID vaccination policy in the New England Journal of Medicine and elsewhere. Last fall, my colleagues and I - including Dr. Rochelle Walensky, now the director of the CDC - published a modeling study that demonstrated the importance of rapid, wide-reaching vaccine implementation and rollout activities to the success of vaccination programs and the eventual end of the pandemic, even more so than the precise efficacy of a particular vaccine. We also wrote an op-ed summarizing our findings and key messages. Ask me about how the vaccines have been tested and evaluated, what we know about them and what we're still learning, how guidelines for vaccine prioritization have been developed and implemented, how the U.S. federal government and state governments are working to administer vaccines quickly and equitably, and anything else about COVID vaccines and vaccination programs. More info about me here, and I'm on Twitter at @jasonlschwartz. I'll be on at 1 pm ET (18 UT), AMA! Proof: link [link] [comments]  |
| Why do some people experience more side-effects from vaccines than others? Posted: 10 Feb 2021 11:51 PM PST A number of people in my life have had the COVID vaccine now and I've noticed some have been quite unwell for a few days and others have had no side effects at all, despite being overall similar in terms of age, sex and health status. Do we know much about why people have different responses? [link] [comments]  |
| What will happen when the center of the Milky Way galaxy ceases to exist? Posted: 10 Feb 2021 11:28 PM PST The earth rotates around the sun, and the sun rotates around the center of the Milky Way galaxy. The center of the Milky Way galaxy is a giant black hole that serves as the acceleration force for our solar system. What will it feel like for humans on earth when that black hole dies? [link] [comments]  |
| Posted: 10 Feb 2021 09:35 AM PST I remember seeing several articles about scientists finding COVID-19 in sewage samples taken well before the pandemic. If this is true it seems really significant. But I have never read anything further about it. Have these studies been subsequently discredited? If not... what does that mean? According to this article in The Week, French scientist re-tested samples from pneumonia patients at a hospital and got a positive match as early as December 27, 2019. Italian scientists found COVID samples in sewage from as far back as Dec 18, 2019 in Milan and Turin according to this abstract on medrxiv. In another medrxiv abstract Brazillian researches report detecting COVID in two sewage samples in Santa Catalina/Florianopolis as early as November 2019. According to this Reuters article, scientist from the University of Barcelona testing old sewage samples got a match for COVID-19 as early as March 2019. Many of these dates far pre-date when the virus was identified in these countries. Some of them pre-date when the first discovery of the virus in China! It seems like these results turn the whole theory of how COVID-19 spread on its head. Has there been any further research to clarify how this is possible? Or that might identify some issue that might have caused these studies to find false positives that predate the pandemic? [link] [comments]  |
| Posted: 10 Feb 2021 07:29 PM PST |
| Posted: 10 Feb 2021 01:40 PM PST |
| Why do we use FeCl3 in the production of Egyptian Blue and Prussian Blue? Posted: 11 Feb 2021 05:27 AM PST After I saw the production of Egyptian Blue, I started to wonder, "Why do we use FeCl3?" It isn't part of the reaction itself, as the reaction itself is: [link] [comments]  |
| Posted: 11 Feb 2021 06:41 AM PST I know bismuth was formely considered stable until it just had an extremely long half-life. [link] [comments]  |
| Posted: 10 Feb 2021 06:50 PM PST If we somehow, theoretically, went fast enough that we started to see noticeable, recordable effects from approaching the speed of light, then went the other way and did the same, couldn't we figure out what the speed of light is relative to? I've always wondered this because while we can't go the speed of light, it probably wouldn't be relative to our own star, or the center of our galaxy, so what would it be relative to? [link] [comments]  |
| What percent of tap water/ bottled water is actually H2O? Posted: 11 Feb 2021 05:05 AM PST I've found lots of articles stating the fact that water contains lots of other dissolved substances, but I can't see exact percentages. [link] [comments]  |
| Is modern infrastructure heat dissipation a concern for global warming? Posted: 10 Feb 2021 07:44 PM PST A genuine after-thought that's now on my mind, figured this would be the right place to ask something like this (not some anti-global warming thing, because I feel like this has that vibe just asking it). With all the technological advancements in the last 20-150 years, many household appliances and automobiles generate a ton of waste heat. We counteract this with re-search into heat dissipation tools like radiators/ heat pumps (and more) to transfer waste heat. In some cases appliances that require heat and then output it as waste etc. I know the earth has ways or methods to radiate heat away, but with the C02 issues in the atmosphere. It has me wondering if nature can't counterbalance these things by natural processes anymore. Is it possible that we're at a scale (with how big the population & the sheer amount of appliances/ products of the modern era being actively used around the globe) where this could be a possible factor of concern for global warming? or is this just a bogus afterthought? [link] [comments]  |
| Causes of watershed growth in connection with the position of a river? Posted: 10 Feb 2021 07:05 PM PST Why do watersheds grow in size as you go downstream of a river? [link] [comments]  |
| Posted: 10 Feb 2021 10:29 AM PST If I take an image of a distance mountain, should the focal length not be ~infinity? How does 135mm make sense, then? [link] [comments]  |
| Since when are we capable of analyzing water to find out its mineral content ? Posted: 10 Feb 2021 01:15 PM PST |
| How are drugs (medicine) invented? Posted: 10 Feb 2021 10:53 AM PST I am aware of accidental discoveries or side effects that can be used to treat diseases. However, I am courious about what drives a scientist to think: Patient has xxx disease: yyy molecule should cure it. [link] [comments]  |
| Posted: 10 Feb 2021 12:24 PM PST |
| What is the difference between xylem vessels and tracheids in plants? Posted: 10 Feb 2021 11:51 AM PST I am currently studying for a second year university midterm for plant biology (intro course for the topic) and there is only a short section in a lecture going over the vasculature of xylem. I am still unclear on what exactly tracheids are (structure and function) so any information would be helpful! Thank you! [link] [comments]  |
| Do brains deteriorate like other organs when people are dying "of old age"? Posted: 10 Feb 2021 09:08 AM PST Like, if we kept someone's brain in a jar, fed it with oxygen and blood, would the brain stay alive indefinitely? Or would it eventually fail like the other body's organs? [link] [comments]  |
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