Why does a web browser require 4 gigabytes of RAM to run? |
- Why does a web browser require 4 gigabytes of RAM to run?
- Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
- Why doesn't the Banach-Tarski theorem work in the physical world?
- How are nerve agents such as Novichok so lethal? How does such a small amount of vapour spread in the body?
- In beta decay, how does a neutron turn into a proton, accompanied by an electron and a positron? In addition, why does having extra neutrons make the atom unstable?
- It doesn't mention in the article, but would we have an understanding of what triggers the change in the spike to emerge from under the stealth glycan coating? Would it be opportunistic, with only spikes in proximity to a target cell emerging or a global reaction on the virus surface?
- Why does the bone density of astronauts drop when they spend the better part of the year in space? How is the bone density recovered once on earth? I saw Col. Chris Hadfield mention it in an interview.
- How is CPU or GPU usage calculated and reported? How does a piece of hardware "know" how much of its maximum processing capacity is being utilized?
- Why is it that protons, neutrons, electrons, atoms, and quarks are all depicted as spherical? Are they actually spherical in real life or are they just drawn that way? If they are actually spherical in real life why is that the case?
- How accurate are Punnett Squares from high school biology in describing genetics?
- Can someone recover from an asymptomatic case of COVID-19?
- Could convalescent plasma be used as a vaccine instead of a treatment?
- Why do planetary gears rations not seem to follow the normal rear reduction rules?
- How do we know the layers of the earth?
- Why do estimations of how much sea level will rise after all the ice melts vary so widely?
- Is COVID still considered a respiratory disease?
- What happens when a lightning strikes the sea?
- Oldest evidence for freshwater life?
- What is the latency of the eye?
- If sound travels faster through denser materials and slower through less dense materials, than how come helium, which is less dense than air, makes the voice higher, while sulfur hexaflouride, which is denser than air, makes the voice lower?
- What happens with rearranged intestines? Does it change anything afterwards?
| Why does a web browser require 4 gigabytes of RAM to run? Posted: 16 Jun 2020 08:41 PM PDT Back in the mid 90s when the WWW started, a 16 MB machine was sufficient to run Netscape or Mosaic. Now, it seems that even 2 GB is not enough. What is taking all of that space? [link] [comments]  |
| Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 17 Jun 2020 08:08 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| Why doesn't the Banach-Tarski theorem work in the physical world? Posted: 17 Jun 2020 12:07 AM PDT The theorem would have you believe you can violate conservation of mass with an Exacto knife. Why is this untrue, what's different about the physical world that doesn't apply to the Banach-Tarski theorem? [link] [comments]  |
| Posted: 16 Jun 2020 01:50 PM PDT |
| Posted: 17 Jun 2020 07:33 AM PDT I have 2 main problems/questions I'm struggling to understand.
+ Additional Question: What makes the C14 atom go, "Let's change one of our neutron instead of getting rid of 2 neutrons and turning into C12"? To sum it all up, what's a beta decay? Thanks in advance! [link] [comments]  |
| Posted: 17 Jun 2020 06:10 AM PDT https://phys.org/news/2020-06-sugar-coating-coronavirus-infection.html It doesn't mention in the article, but would we have an understanding of what triggers the change in the spike to emerge from under the stealth glycan coating? Would it be opportunistic, with only spikes in proximity to a target cell emerging or a global reaction on the virus surface? "Amaro is a corresponding author of a study published June 12, 2020 on bioRxiv.org—an open-access repository of electronic preprints—that discovered a potential structural role of the shielding glycans that cover the SARS-CoV-2 spike protein. "You can see very clearly that from the open conformation, the spike protein has to undergo a large structural change to actually get into the human cell," Amaro said. But even to make an initial connection, she said that one of the pieces of the spike protein in its receptor binding domain has to lift up. "When that receptor binding domain lifts up into the open conformation, it actually lifts the important bits of the protein up over the glycan shield," Amaro explained." [link] [comments]  |
| Posted: 16 Jun 2020 09:05 PM PDT |
| Posted: 16 Jun 2020 04:23 PM PDT |
| Posted: 16 Jun 2020 06:54 PM PDT |
| How accurate are Punnett Squares from high school biology in describing genetics? Posted: 16 Jun 2020 06:16 PM PDT |
| Can someone recover from an asymptomatic case of COVID-19? Posted: 16 Jun 2020 11:04 PM PDT |
| Could convalescent plasma be used as a vaccine instead of a treatment? Posted: 16 Jun 2020 09:18 AM PDT Say I got covid, could I just give my Grandparents (or yours) plasma before they get it? Could they then give plasma to their friends and so on? [link] [comments]  |
| Why do planetary gears rations not seem to follow the normal rear reduction rules? Posted: 16 Jun 2020 08:03 PM PDT No idea if this is the correct sub for this but I figure it cant hurt to ask. I'm pretty good with physics and science IMO and I figured for fun I'd try to teach myself about planetary gearboxes because they're pretty cool and a bit more complicated than regular gears. So I 3D printed a little gear I made with a 60 tooth ring gear, with a 30 tooth sun gear and two 15 tooth planet gears. When you do the math for this particular gearbox (using equations I found online), it says for one full rotation of the sun gear, the planets should move about 1/3 of the way around the circle, essentially a 3:1 reduction, and this is how it works with the model I printed; but I'm having trouble wrapping my head around where the 3 comes from. I would think that if I spin the sun gear one full rotation (30 teeth) it would force the planets to also spin a distance of 30 teeth, or half way around the circle. But when you look up close you can see that with one full rotation of the sun gear, 20 teeth mesh between the sun and the planet, getting us the 20/60 or 1/3 rotation that the equations predict. So obviously the math is right and I am just visualizing it wrong. I can see if I instead twist the ring and watch the center gear it will twist twice to the outer gears one turn, which makes sense in my head for the two to one. So really what still doesn't make sense is where the 3 to 1 comes from when you hold the ring gear stationary and drive the sun. Can anyone explain why its not working the way my head seems to think it should work? Or is this there a better sub to ask? Here are some pictures if necessary [link] [comments]  |
| How do we know the layers of the earth? Posted: 16 Jun 2020 07:37 PM PDT How? I know we haven't drilled down to the core. I know we have volcanos so that would tell us that at least the next layer is molten, but how do we know the rest? Also the temperature? How do we know the composition of the different layers? [link] [comments]  |
| Why do estimations of how much sea level will rise after all the ice melts vary so widely? Posted: 16 Jun 2020 01:25 PM PDT |
| Is COVID still considered a respiratory disease? Posted: 16 Jun 2020 07:26 AM PDT I read somewhere that COVID is not actually a respiratory disease, but a virus that attacks blood vessels. Also, that when transferred through the air the virus attacks the lungs cause lungs have blood vessels. Not sure about how true this is, I wanted confirmation. [link] [comments]  |
| What happens when a lightning strikes the sea? Posted: 16 Jun 2020 01:26 AM PDT |
| Oldest evidence for freshwater life? Posted: 16 Jun 2020 09:58 AM PDT I've been trying to get a handle on when life began to move from the oceans to freshwater, as opposed to land, but can't seem to find more than the oldest evidence for a specific type of life in a particular location, for example crayfish in Australia. It seems to me that the transition to freshwater would have been easier than that to land, and likely earlier, but it may be that fossils are less easily preserved in rivers, lakes and streams. Does anyone know or have any pointers to the evidence for the earliest colonisation of freshwater environments? [link] [comments]  |
| What is the latency of the eye? Posted: 16 Jun 2020 02:50 AM PDT When the eye sees an image, how long does it take to reach the brain? It might take longer or shorter for some people to perceive the stimulus (based on the speed of their reflexes), but how long does it take for the information to reach the brain from the eye? [link] [comments]  |
| Posted: 16 Jun 2020 11:52 AM PDT |
| What happens with rearranged intestines? Does it change anything afterwards? Posted: 15 Jun 2020 10:57 PM PDT After surgeries where they have to move around the intestines/take them out temporarily, are they just shlopped back in? Is there a way to put them back like they were? Would this later affect digestion or anything? [link] [comments]  |
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