Do Geothermal power plants need to be built in geologically active areas, or can you build them anywhere if you dig deep enough? |
- Do Geothermal power plants need to be built in geologically active areas, or can you build them anywhere if you dig deep enough?
- Why does the Moderna vaccine include two 100 micrograms doses of mRNA, while that for Pfizer is two doses of 30 micrograms each?
- What affects the lifespan of memory T and B cells?
- Question about fractals, particularly the Sierpiński triangle, the chaos game and what happens when we use the same rules but with 4 corners. why am I getting these results?
- How do they reevaluate the stability of the mRNA vaccines without another clinical trial?
- Why doesn't the strong Nuclear force have an infinite range?
- Why does optic fibre have limited band of frequencies?
- Why is the fluorescent decay preferred over auger effect for heavy atoms?
- Is it possible that there were multiple independent origins of life on Earth?
- Why can't we be sure that a rabid animal has rabies unless we examine their brain?
- Why does risotto turn out better when you add broth slowly over time, rather than all at once?
- What exactly is the process of extracting He3 from lunar regolith?
- When a ship passes over ab underwater tunnel, does it increase the weight being put on the outside of the tunnel?
- How can fuses be rated in amps rather than watts?
- Can monoclonal antibody therapeutics (ex: Rituximab) mimic natural antibodies and therefore boost antibody levels on a blood test?
- What is the cause for the patterns shown in the distribution of exoplanets when plotted by their mass and radius?
- How precisely can we predict the landing zone of a meteor?
- How precise is bat’s echolocation? Can their brains calculate the angles using advanced geometry and trigonometry?
- Why is it so hard to recycle plastics and other oil based products?
- Did any long-necked dinosaurs have the high blood pressure needed to be able to hold their necks vertical?
| Posted: 10 Jun 2021 04:13 AM PDT |
| Posted: 10 Jun 2021 04:19 AM PDT |
| What affects the lifespan of memory T and B cells? Posted: 09 Jun 2021 04:59 PM PDT I got curious and have been trying to find the information but I just couldn't find it. I know that memory lymphocytes formed after infections. But I didn't know why some live long while some are not and what makes them like that. This source shows different efficacy of vaccination so I just wondering why efficiency become less as time passes by. This post said that it's because of half-life effect but that was 6 years ago, so, I'm not sure if that is still the case. [link] [comments]  |
| Posted: 10 Jun 2021 02:06 AM PDT Yesterday i learned about the chaos game. To the the thing in real life, when i grew tired of drawing and measuring points in paper and rolling a die, i programmed it on python. then i asked myself what would happen if i tried the same thing with 4 "corners" instead of 3. keep in mind, the corners were still placed randomly, never creating a perfect square, just a quadrilateral. and the fractal pattern was still there. although it had like "noise" on some triangular shaped areas, getting just random points on those. then i checked the wikipedia page on chaos game https://en.wikipedia.org/wiki/Chaos_game and it said there that if you try to use the same rules from the triangle but for a perfect square (or a normal square, i guess they are always perfect), it just creates random noise, no pattern appears. i tried it with a third program and yes, if the four corners are situated at the beggining NOT at random but forming a true square, you get nothing. So my question is...why is it that when you do it with 4 corners but not in a perfect square shape, the pattern appears but when its regular, the pattern does not appear? is there a specific point of "regularity" when the pattern dissapears? and also, i've noticed that when the pattern appears, there is a triangular area where points are random noise. why is it triangular? and does its area/shape/placement have some relation to the "triangle" that it could be if there were only 3 points? ill add access to the three programs in python if you want to try them for yourselves or read the code https://github.com/juanmata42/Sierpi-ski-question inside: Sierpiński_triangle.py creates the triangle with the chaos game prueba cuadrilatero aleatorio.pystill with random "corners" but having 4 of them. here the pattern appears fractal cuadrado.pyhere the square is perfect and the pattern does not appear [link] [comments]  |
| How do they reevaluate the stability of the mRNA vaccines without another clinical trial? Posted: 10 Jun 2021 10:55 AM PDT After reviewing new stability data the FDA and EMA authorized the Pfizer vaccine to be stored in a regular refrigerator for a certain period of time. I was wondering how they make sure the vaccine efficacy isnt compromised if they dont test the differently stored vaccines on a huge group of people all over again? [link] [comments]  |
| Why doesn't the strong Nuclear force have an infinite range? Posted: 09 Jun 2021 09:03 AM PDT So the Strong Nuclear force is like the Weak force with a short range, The range of the strong force is about 1x10^-15 meters, (so quite a short range) The weak force has a low range as it's communicated by massive particles, that are so massive they can't actually be created so they have to interact with a virtual W-boson , The electromagnetic force has effectively infinite range because photons are massless but the strong force is communicated by gluons, gluons too are massless. So why (like the electromagnetic force) doesn't the strong force have an infinite range? [link] [comments]  |
| Why does optic fibre have limited band of frequencies? Posted: 09 Jun 2021 10:28 PM PDT |
| Why is the fluorescent decay preferred over auger effect for heavy atoms? Posted: 10 Jun 2021 12:10 AM PDT The fluorescence is preferred for atoms with higher core number and auger effect is preferred for atoms with smaller core number. But these heavy atoms have much more (partly loosely bonded) electrons which could participate in a auger process. Why don't they do it? [link] [comments]  |
| Is it possible that there were multiple independent origins of life on Earth? Posted: 09 Jun 2021 12:20 PM PDT I was listening to a podcast on astrobiology and the theoretical search for life on other planets, and it got me thinking: could there have been multiple "first" organisms on Earth when life first formed as microbes billions of years ago? If so, how would we know? Is it possible that any of these independent evolutionary trees survived for very long, or would they have been out-competed by the organisms that are our earliest ancestors? [link] [comments]  |
| Why can't we be sure that a rabid animal has rabies unless we examine their brain? Posted: 09 Jun 2021 10:20 AM PDT I have read that in order to be sure that animal has rabies, It's brain should be examined. If rabies virus is excreted in saliva, can't we just take a rabid animal's saliva and test it in order to know If the animal has the virus without examining it's brain? [link] [comments]  |
| Why does risotto turn out better when you add broth slowly over time, rather than all at once? Posted: 09 Jun 2021 01:21 PM PDT |
| What exactly is the process of extracting He3 from lunar regolith? Posted: 09 Jun 2021 01:28 PM PDT What exactly is the process of extracting He3 from lunar regolith? The only information I can find says: 1) Heat the lunar dust to 760C/1400F to drive off the volatiles 2) Fractional distillation to decant off the heavy volatiles 3) Separate He3 from the He4 using the standard superleak process. Anybody have any more in depth details? [link] [comments]  |
| Posted: 09 Jun 2021 11:06 AM PDT |
| How can fuses be rated in amps rather than watts? Posted: 09 Jun 2021 11:41 AM PDT Fuses have a filament that burns/melts/seperates when it hits the current rating. I would think that resistance would be the only constant in the fuse so by ohms law I would have thought that at half the voltage it should take double the current however many fuses have a fixed rating but work from 110-250v. How can this be? [link] [comments]  |
| Posted: 09 Jun 2021 05:10 PM PDT |
| Posted: 09 Jun 2021 11:41 AM PDT While messing around with exoplanet data, I made a few graphs shown here where I plotted the Radius vs Mass and Volume vs Mass graphs for many planets, and found an unusual pattern where, as mass increases, the radius appears to increase logarithmically until about 130 Earth masses at which point the trend starts to decrease logarithmically (It appears logarithmic anyways). What is the explanation for the trends shown here? Edit: The transition doesn't seem like it's related to the transition between terrestrial and gaseous planets. Saturn is around 100 Earth masses while Jupiter is about 318 Earth masses, well on either side of the 130 Earth Mass boundary. Uranus is only 15 Earth masses. I have identified a similar point at 2 Earth masses that appears to be this boundary. (Between terrestrial super-earths and mini Neptunes) [link] [comments]  |
| How precisely can we predict the landing zone of a meteor? Posted: 09 Jun 2021 10:50 AM PDT I imagine the biggest variable is if it breaks up, right? If we ignore the fact it could break up, how precisely could the landing be predicted? [link] [comments]  |
| Posted: 09 Jun 2021 09:35 AM PDT |
| Why is it so hard to recycle plastics and other oil based products? Posted: 09 Jun 2021 08:24 AM PDT |
| Posted: 09 Jun 2021 07:47 AM PDT Giraffes have very high blood pressure to be able to keep their necks vertical without fainting. Do we know whether any of the long-necked sauropods also had this capability? Or did they mainly keep their necks more horizontal, like maybe for reaching swamp or river vegetation while standing on firm ground? [link] [comments]  |
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