How much of the ocean do we actually have mapped/imaged? Do we really even know what exists in the deepest abyss? |
- How much of the ocean do we actually have mapped/imaged? Do we really even know what exists in the deepest abyss?
- How do we know that the Mariana Trench is indeed the deepest point on earth, if we’ve only explored/mapped 15% of the ocean floor?
- If some big disaster occured and wiped out almost all of humanity, how many people would be needed to keep our species alive and why?
- AskScience AMA Series: We are experts here to answer your questions on shortages of laboratory testing supplies for COVID-19 and other infectious diseases. AUA!
- Technically speaking, can you generate a truly random number?
- Why are optic fiber cables (or the technology) is ‘faster’ if the speed of electrons is very close to the speed of photons?
- If 8% of the human genome is retro-viral DNA, are we 8% old virus? Will this number ever reach a point where our original DNA is corrupted?
- Why does the Soyuz fire do its deorbiting burn with the orbital module?
- Does the equivalence principle apply to any attractive field?
- What is the mechanism by which seizures end?
- With ICP (Inductively Coupled Plasma), how are you able to harness the energy if it reaches temps between 6000K - 10000K. Wouldn’t the exterior melt instantly?
- Are elements heavier than Iron produced by fusion in supermassive stars?
- Does the variety of genomes of a virus have any impact on vaccination attempts?
| Posted: 26 Oct 2020 09:42 PM PDT |
| Posted: 27 Oct 2020 05:59 AM PDT |
| Posted: 26 Oct 2020 05:19 PM PDT |
| Posted: 27 Oct 2020 04:00 AM PDT Since March, clinical microbiology laboratories have faced shortages of testing supplies, including SARS-CoV-2 molecular test reagents. Due to the growing demand and need for COVID-19 testing, production of supplies required to test for other infectious diseases has dwindled. This has led to a ripple effect of shortages and is causing a major delay in testing for common infections, such as urinary tract infections, sexually-transmitted infections including chlamydia and gonorrhea, gastroenteritis and cystic fibrosis. Join us today at 2 PM ET for a discussion organized by the American Society for Microbiology (ASM) on approaches being taken to catalogue, track and address these supply shortages. In particular, we'll discuss a new platform developed by the Association for Supply Chain Management and the ASM to monitor real-time levels of, and demand for, COVID-19 testing supplies down to the level of individual laboratories. We'll also answer your questions about future decisions about supply chain management of laboratory reagents and testing protocols. Ask us anything! With us today are:
Links: [link] [comments]  |
| Technically speaking, can you generate a truly random number? Posted: 26 Oct 2020 03:08 PM PDT |
| Posted: 26 Oct 2020 01:50 PM PDT |
| Posted: 26 Oct 2020 05:35 PM PDT I'm by no means a biologist but I've been hearing some things and reading some cursory articles on retro viruses and find it fascinating. I'm curious what other things would be good to know about them, that are understandable to someone not in biology, and how exactly they work and affect us [link] [comments]  |
| Why does the Soyuz fire do its deorbiting burn with the orbital module? Posted: 26 Oct 2020 06:22 PM PDT It seems like a waste of propellant to put the orbital module on a trajectory towards earth's atmosphere because it doesn't contain any crew, and it will burn up on its way down. [link] [comments]  |
| Does the equivalence principle apply to any attractive field? Posted: 27 Oct 2020 03:07 AM PDT I'm working my way through a General Relativity course. The equivalence principle basically says a person in a gravitational field cannot distinguish between being in that field from being in an accelerated reference frame. Intuitively it seems to me that if you get rid of the gravitational field, and instead have some charged object (say negatively charged), being attracted to some fixed positively charged object, the negatively charged object would also experience something indistinguishable from being in an accelerated reference frame. If that's the case it seems like general relativity would apply to any attractive field, not just gravity. Where have I gone wrong in my understanding here? [link] [comments]  |
| What is the mechanism by which seizures end? Posted: 26 Oct 2020 12:13 PM PDT I am not a neuroscientist, but I did study some amount of neuroscience in college through a psych minor and a general interest in computational neuroscience. My (very naive) understanding is that epileptic seizures are caused by an abnormal synchronous firing of neurons in the brain and that once this abnormal activity starts it somehow perpetuates itself. I'm also under the impression that most seizures end without major consequences on their own after a few minutes. What changes during that time to allow the brain to return to normal? Why do seizures not continue indefinitely or until treated with medicine once they start? [link] [comments]  |
| Posted: 27 Oct 2020 06:45 AM PDT |
| Are elements heavier than Iron produced by fusion in supermassive stars? Posted: 26 Oct 2020 06:43 PM PDT Ok, like we all know, the fusion process in the largest stars results in rings of increasingly heavier elements in the core that require higher temperatures/pressures to fuse until it gets to a core of iron, after which it can't proceed further in using fusion to support itself and experiences core collapse shortly after. What I have never been able to get exactly because of non-specific phrasing though is...is it that the star cannot fuse anything with Iron or that fusion with Iron is endothermic instead of exothermic? As in, does the lack of fusion in the core create the lack of energy to support the gravity of the star or does it actually fuse elements higher than Iron but, since that is actively taking energy instead of producing it it even more rapidly depletes the ability to resist gravity? What is the specific fusion chain seen in stars for the heavier elements? I guess it's a weird question because stars obviously produce heavier elements once the supernova actually starts...but is there a clear line between "This star is moments before supernova" and "This star has started to supernova"? If it DOES fuse elements higher than Fe, thus stealing energy, would it get a significant fraction of the core transmuted before final collapse or would it be tiny pockets causing the irreversible shift in energy production? [link] [comments]  |
| Does the variety of genomes of a virus have any impact on vaccination attempts? Posted: 26 Oct 2020 08:45 PM PDT https://nextstrain.org/ncov/global [link] [comments]  |
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