The earth is about 4,5 billion years old, and the universe about 14,5 billion, if life isn't special, then shouldn't we have already been contacted? |
- The earth is about 4,5 billion years old, and the universe about 14,5 billion, if life isn't special, then shouldn't we have already been contacted?
- Why don't microplastics keep breaking down?
- What exactly makes the Higgs Boson so special?
- How do vaccines against bacteria work?
- Are we only aware of the exoplanets that transit their sun relative to us?
- Why limit household water consumption during droughts?
- Could seasonal allergy vaccines be created through the same method as COVID vaccines?
- Why does stalling occur in aeroplanes?
- How to figure out if vaccine is working within specific individual?
- Why are there no odd number CPUs?
- Do we know numbers for individuals fully vaccinated and subsequently died from covid?
- How does a radio receiver isolate out a specific frequency?
- Why do slugs come up onto dry porches/decks en masse at night?
- Is there a way a blood test could tell which COVID-19 vaccine(s) you received?
- How accurate is forensic time of death estimation?
- Do or can we know the average lifespan of dinosaurs?
- What did they do before inductions? (Pregnancy)
- is there any relative difference/paper that shows datas between getting a vaccine for covid in the left or right arm, or left or right thight?
| Posted: 14 Jun 2021 12:17 AM PDT At what point can we say that the silence is an indication of the rarity of intelligent life? Question to mods: why is my post locked? [link] [comments]  |
| Why don't microplastics keep breaking down? Posted: 13 Jun 2021 05:16 AM PDT It's my understanding that as pieces of "stuff" dissolve or disintegrate into smaller pieces the process accelerates as the surface area/volume ratio changes. It seems like plastics in the ocean have broken down into "micro" sized pieces then just... stopped? Is there some fundamental unit of plastic which plastic products are breaking down into that have different properties to the plastic product as a whole, and don't disintegrate the same way? Bonus question I only thought of while trying to phrase this question correctly - what is the process that causes plastics to disintegrate in the ocean? Chemically dissolving? Mechanically eroding like rocks into sand? [link] [comments]  |
| What exactly makes the Higgs Boson so special? Posted: 14 Jun 2021 07:44 AM PDT I've read a couple things on it but I still do not understand what exactly gives this particular particle the name 'God' [link] [comments]  |
| How do vaccines against bacteria work? Posted: 13 Jun 2021 02:43 PM PDT Hello, I don't understand how vaccines against bacteria work, especially for diseases your body can't get rid on it's own. For example there are vaccines against Lyme disease, but if you were to get Lyme and not get treatment, your body wouldn't be able to ever get rid of the bacteria on its own, without antibiotics. How can the vaccine work in this case? Thank you [link] [comments]  |
| Are we only aware of the exoplanets that transit their sun relative to us? Posted: 13 Jun 2021 04:23 AM PDT Sounds a bit stupid but I understand we notice them when they pass in front of their sun, but what if their orbit can't be seen like if they or it around the other way, e.g if viewed in 2d, would be like a circle around the sun, rather than going in front and round the back of the sun. I realise now there's probably a very slim chance of this happening, right, like you'll always see a little bit? [link] [comments]  |
| Why limit household water consumption during droughts? Posted: 13 Jun 2021 07:08 AM PDT With water treatment of sewage from households why should we limit the water "consumption" during dry periods? Is water removed from the closed cycle somewhere to warrant limiting the usage? [link] [comments]  |
| Could seasonal allergy vaccines be created through the same method as COVID vaccines? Posted: 13 Jun 2021 11:36 AM PDT I was wondering whether the creation of COVID vaccines has opened or potentially accelerated new ways in which we treat seasonal allergies? Specifically, grass, mites, trees and etc. I can't imagine that we'd still need antihistamines in order to suppress the immune response when a spike protein can do it permanently or more effectively. For acute cases, I guess that's fine but chronic sufferers like myself would love to know if there's any new development or theories to treat this. [link] [comments]  |
| Why does stalling occur in aeroplanes? Posted: 13 Jun 2021 07:03 AM PDT I understand that an aeroplane's wings generate lift by making the air travel a greater distance on top than on the bottom in the same amount of time, effectively increasing air velocity on the top, making for a lower pressure relative to the air pressure on the bottom. I also know that at too high an angle of attack coupled with too low an airspeed, the air separates from the top surface of the wing. Part of me understand that if there is no airflow, and therefore no faster airflow and lower pressure, on the top of the wing, lift will decrease. However, at the same time, if the plane is moving forward and the air is failing to make contact/follow the top surface, would that not in effect be creating sort of a vacuum would be at an even lower pressure than if there was fast airflow? Would that not in itself create more lift? I addition, I know that gold balls aren't smooth because a smooth surface would cause the airflow to not follow the surface around the ball far enough back. This results in the trailing-side of the ball having a very low pressure which greater accentuates the force acting against the direction of the ball. Would this not apply to an aeroplane's wings, where the top of the wing is analogous to the trailing-side of a smooth golf ball? Thanks! [link] [comments]  |
| How to figure out if vaccine is working within specific individual? Posted: 13 Jun 2021 09:00 AM PDT According to this: https://www.bloomberg.com/news/newsletters/2021-03-28/q-a-is-there-a-way-to-find-out-if-your-vaccine-is-working
Can someone explain these experimental ways that are not commercially available to the public yet? Thanks. [link] [comments]  |
| Why are there no odd number CPUs? Posted: 13 Jun 2021 10:55 AM PDT Like, for example, a 5 core CPU. Why only 2, 4, 6, 8, 10, ect. Is it recquired to have an even number of Cpus? [link] [comments]  |
| Do we know numbers for individuals fully vaccinated and subsequently died from covid? Posted: 13 Jun 2021 04:42 PM PDT |
| How does a radio receiver isolate out a specific frequency? Posted: 12 Jun 2021 11:12 PM PDT My understanding is that if radio waves from several different stations reach your antenna, they'll all interfere with each other to create a single wave. I tried to simulate what several sine waves with different wavelengths added together would look like and got this chaotic-looking line. I'm having trouble seeing how it's possible to undo the addition and single out the component part of the wave that comes from a particular frequency. [link] [comments]  |
| Why do slugs come up onto dry porches/decks en masse at night? Posted: 13 Jun 2021 12:25 AM PDT I'm really confused. So this comes from a problem I had to solve a few weeks ago, and although successful, it's still stuck in my craw because to me, as of now, it's a problem with no obvious source and seems contradictory to me.
As I understand them, slugs are highly dependent on remaining in a moist environment and primarily eat plant material from living plants.. So, from a wants & needs perspective, it seems like the dry floor & walls of a wooden or concrete porch would not just be less than ideal, but actually the opposite of the sort of area they'd want to congregate in. On top of this, slugs are (obviously) very, very slow-moving creatures, so it seems even more contradictory to me that such an inefficient traveler would not be extra cautious to not waste time traveling to & wiggling around on what is, to them, effectively a desert.
And yet!!
And yet myself and (it seems) countless other bloggers and google commenters, every year, must seek out answers on how to keep (sometimes hoardes of..) these guys out of/off of our slug-deserts/porches. So what gives? I couldn't find a straight answer to this on Google and it's confusing seeing them still waiting at the perimeter of my salt barrier every night, even weeks after I closed down the border. [link] [comments]  |
| Is there a way a blood test could tell which COVID-19 vaccine(s) you received? Posted: 12 Jun 2021 08:19 PM PDT |
| How accurate is forensic time of death estimation? Posted: 12 Jun 2021 07:50 PM PDT Let's say we've got a body, buried in a shallow grave, found days to months after death. If the body was recent, say in the past day or so, a skilled medical examiner should be able to use body temperature to estimate death to within the hour. If it's older than that, like 1 day to 6 months old, how accurate would an estimate be, using the bleeding edge of forensic medical science? [link] [comments]  |
| Do or can we know the average lifespan of dinosaurs? Posted: 12 Jun 2021 05:14 PM PDT Do we know how long an individual dinosaur's lifespan may have been? If so, how did we figure it out? If not, could we figure it out? Thanks! [link] [comments]  |
| What did they do before inductions? (Pregnancy) Posted: 12 Jun 2021 05:11 PM PDT Nowadays when a pregnant woman goes beyond 42 weeks, most doctors schedule an induction because it can be dangerous for the baby. What did women do before then? Were there more risks to the baby? Did they make it out alive and healthy? Did the baby eventually just come out? Was natural labor possible? [link] [comments]  |
| Posted: 13 Jun 2021 07:51 AM PDT so I was reading that either pfizer and moderna can be injected in the muscle of the arm or the thight, but it doesn't specify if there is any substantial difference, neither if there was any difference between getting the vaccine shot in the left or right arm/thight is any paper about it? [link] [comments]  |
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