Why do mountains have peaks instead of having "flat tops"? |
- Why do mountains have peaks instead of having "flat tops"?
- Could the quarantines in some countries decimate the seasonal flu or other diseases that rely on constant spreading?
- Do children actually learn languages quicker than adults or do we just put way more effort into teaching children than we do adults?
- How can we prepare for the next novel virus now, so that we won’t need to take such drastic measures as we did for COVID-19?
- Are there people who have natural immunities to diseases?
- How do we know that there aren't entire antimatter galaxies?
- Is there any kind of synchrotron radiation for electrons moving along a superconducting coil?
- Convalescent Plasma for COVID-19 treatment?
- What do other archaeologists think about the recent results from Chiquihuite Cave?
- If having more cells means there is a larger chance of mutations and thus cancer, why is it that large animals like elephants and whales aren't dying of cancer nearly as much on the same level as humans who have less cells?
- What biological mechanism enables young creatures to grow such that all portions of the creature grow at the same rate? In other words how does the growth process avoid having some body parts grow at different rates then others?
- Do solid planets need a molten core to have a magnetic field?
- Can we engineer "evolution" in small organisms (e.g. bacteria) in short periods of time?
- Why are modern batteries still susceptible to damage when left plugged in for extended periods?
- How close do two particles have to be for tunneling to occur, allowing fusion to happen?
- Do comets like neowise lose mass and disintegrate eventually? Or do they somehow replenish lost material?
- Do bites from different species of venomous snakes require different anti-venoms?
- How to trees pull up water so high?
- If the Oxford vaccine infects people with a harmless, live virus that looks like SARS-CoV-2, would it be contagious like normal viruses?
- What do Captchas do?
| Why do mountains have peaks instead of having "flat tops"? Posted: 26 Jul 2020 03:34 AM PDT |
| Posted: 25 Jul 2020 12:55 PM PDT So for example can we expect to have far less cases of the seasonal flu next year in those countries that had an actual shutdown? Of course it wouldn't be totally eradicated and start spreading again as soon as a covid vaccine/containment is done and the social distancing is stopped. [link] [comments]  |
| Posted: 25 Jul 2020 10:42 AM PDT |
| Posted: 25 Jul 2020 07:28 PM PDT |
| Are there people who have natural immunities to diseases? Posted: 26 Jul 2020 12:14 AM PDT Best example I can think of are the zombie movie tropes when there are "immune"people. Is it possible there could be someone out there who is actually immune to something like the common cold? Or Cancer? [link] [comments]  |
| How do we know that there aren't entire antimatter galaxies? Posted: 25 Jul 2020 12:18 PM PDT |
| Is there any kind of synchrotron radiation for electrons moving along a superconducting coil? Posted: 25 Jul 2020 10:58 PM PDT So, for electrons moving in vacuum in circles there is that phenomenon called synchrotron radiation. Which, theory says, is caused by the Abraham–Lorentz force or the "self-force". So the electrons lose their energy in a synchrotron because of it. But what about a superconducting coil? If the coil has a stable superconducting current, than there is the contradiction with the theory: electrons move with acceleration (in circles), but do not lose their energy because of the self-force! So there must be some kind of radiation and thus resistance in superconductors. Right? [link] [comments]  |
| Convalescent Plasma for COVID-19 treatment? Posted: 25 Jul 2020 08:41 PM PDT Has convalescent plasma been approved as a treatment for hospitalized COVID-19 patients? this site that was updated earlier in the month suggests it has not, however I keep seeing articles like these that suggest otherwise. Thank you! [link] [comments]  |
| What do other archaeologists think about the recent results from Chiquihuite Cave? Posted: 25 Jul 2020 09:37 AM PDT So I finally got around to reading the paper (Ardelean et al. 2020) and these are my thoughts: Overall I think it's pretty convincing and probably the best evidence we've seen so far for a pre-LGM human presence in the Americas. The tools are definitely real and the dating seems solid. That said, there were a couple of issues. First, I would have liked to see a third figure showing the distribution of piece plots in vertical space from the East or west. (Currently there are figures showing the plots in plan view and from the south). It's not entirely clear how the sediments slope from this direction and the provenience of the artifacts allegedly from the SC-C layer is absolutely critical to their argument. Second, from what I understand from the dating of the SC-C layer, 33Ka is a maximum age and the upper parts of SC-C could be as young as around 16Ka. Again seeing the full 3D positions of the piece plots and the dates would be very helpful in confirming the claim that some of the material is pre-LGM. Still, overall I think this is good work and should at least be taken seriously. What do y'all think? [link] [comments]  |
| Posted: 25 Jul 2020 09:59 AM PDT So basically yeah, that's my question, maybe there is a cancer treatment we can obtain from whales, elephants and other large mammals? Just a thought [link] [comments]  |
| Posted: 25 Jul 2020 11:09 AM PDT |
| Do solid planets need a molten core to have a magnetic field? Posted: 25 Jul 2020 08:39 AM PDT I'm doing an assignment that involves finding or getting a general idea of the mass of Hoth-6 from the Star Wars movies. Since the planet has snow and living creatures, it must have a magnetic field, right? I'm hoping that if this is true, that it must have a molten core, so that I can say that it has a density similar to Earth's. I don't need exact numbers though, because I know that Hoth should have a much weaker gravity than earth because of its diameter of 7200km. Thanks in advance! [link] [comments]  |
| Can we engineer "evolution" in small organisms (e.g. bacteria) in short periods of time? Posted: 25 Jul 2020 01:14 PM PDT For example, if we have heat up bacteria in a petri dish to 45 degrees celsius, are we genetically selecting for bacteria that can survive in that temperature? Or if we expose it to chemicals (like soap), are we creating super-bacteria? How long would it take to see meaningful changes in the genetic structure of this bacteria, as compared to larger organisms such as plants and animals. [link] [comments]  |
| Why are modern batteries still susceptible to damage when left plugged in for extended periods? Posted: 25 Jul 2020 05:43 PM PDT |
| How close do two particles have to be for tunneling to occur, allowing fusion to happen? Posted: 25 Jul 2020 11:25 AM PDT So I have read that in our sun fusion would not even be happening without tunneling, which lead me to the question what distance is overcome by tunneling. [link] [comments]  |
| Posted: 25 Jul 2020 05:54 PM PDT |
| Do bites from different species of venomous snakes require different anti-venoms? Posted: 25 Jul 2020 05:53 PM PDT I guess I'm just wondering if there are certain anti-venoms that cover many different types of snakes or if each one needs it's own anti-venom. Also, I'm interested as to what happens if a person gets bitten but isn't sure what kind of snake did it. [link] [comments]  |
| How to trees pull up water so high? Posted: 25 Jul 2020 12:18 AM PDT A perfect vacuum only pulls water up about 10m. A video by veritasium explains that root pressure and capillary action aren't enough either, especially for trees like the giant redwood which are 100m tall. He says it's because transpiration creates a negative pressure. What even is a negative pressure and why are we not able to recreate it ourselves [link] [comments]  |
| Posted: 25 Jul 2020 07:13 AM PDT I hope this isn't a stupid question, but according to the BBC, the Oxford vaccine works by putting 'small sections of its genetic code into a harmless virus that infects chimpanzees. They appear to have developed a safe virus that looks enough like the coronavirus to produce an immune response.' The way I'm interpreting this, the vaccine infects its host with an asymptomatic virus, and so surely if this is the case, could the host not spread it in the same way a normal virus spreads? I'm guessing not, partly because if this were the case I'm sure a self-spreading vaccine would be headline news (not to mention the anti-vax uproar!) so could anyone shed any light on how this works? Thanks! [link] [comments]  |
| Posted: 25 Jul 2020 01:06 PM PDT I've heard they calibrate AI, is this true and if how? [link] [comments]  |
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