When a photon is emitted, what determines the direction that it flies off in? |
- When a photon is emitted, what determines the direction that it flies off in?
- How do plants protect their DNA from the sun? Do they ever get "skin" cancer?
- Why is it that as we move to higher altitudes (mountains) temperature drops, whereas we move closer to the sun ?
- Why does dehydration cause muscle cramps?
- Where do hermit crab’s shells come from?
- How does the test for Covid 19 work?
- If you had an accident and your fingers lose their fingerprints temporarily, would these fingerprints be the exact same when they heal back?
- Does an interferometer add or multiply together signals? Is it either?
- How do Herpes viruses replicate inside muscle and nerve cells without killing host cells?
- What is Folding@Home doing while trying to research Covid-19?
- If you have an immunity to a virus, would your immunity fail if your body gets exposed to a massive number of that virus? Could that realistically happen for healthy people?
- If you move a magnet through the air fast enough to create a strong enough changing magnetic flux, can the magnet induce a ring of lightning in the air around the magnet?
- Considering a supernova can lead to the creation of new stars is it not possible that if it was a big bang which created our universe, this event could have been a common supernova on a scale which we are just too small to understand in a universe that is much bigger than we expect?
- How fast should an image be flashed on a monitor screen for it to be unnoticeable or unrecognizable?
- How would one derive Wien's distribution law?
- How long did it take for dinosaurs to go extinct?
- Is heat the ONLY factor used determine smoke point in oils? Looking at online resources - not getting the same results on a mini-experiment.
- How do patients that have recovered from Covid, test positive again?
- Can anyone explain how Max plank disproved Rayleigh-Jeans law in the context of the ultraviolet catastrophe in layman's terms?
- Is it possible for a tidally locked planet to have a tidally locked moon?
- Why don't neutrinos interact with matter?
| When a photon is emitted, what determines the direction that it flies off in? Posted: 12 Apr 2020 02:43 AM PDT |
| How do plants protect their DNA from the sun? Do they ever get "skin" cancer? Posted: 11 Apr 2020 10:59 AM PDT |
| Posted: 12 Apr 2020 12:57 AM PDT |
| Why does dehydration cause muscle cramps? Posted: 11 Apr 2020 09:38 PM PDT I've always known that not drinking enough water can make you have muscle cramps, but I realized that I don't know exactly why. And why does you only get the cramp in one place? Why not all over? [link] [comments]  |
| Where do hermit crab’s shells come from? Posted: 11 Apr 2020 08:29 PM PDT I've heard a few times that when a hermit crab gets too big for its shell it just finds a bigger one and transfers. Where do the shells come from in the first place? [link] [comments]  |
| How does the test for Covid 19 work? Posted: 12 Apr 2020 04:38 AM PDT |
| Posted: 12 Apr 2020 02:38 AM PDT So for example, say I fell off my bike and my thumb gets scraped in the process, but heals, would my fingerprint be the same as before? [link] [comments]  |
| Does an interferometer add or multiply together signals? Is it either? Posted: 12 Apr 2020 02:44 AM PDT I'm studying honours physics right now and have to get an understanding of interferometers, specifically in the context of astronomy and interferometer telescope arrays. However, I'm having some trouble as we only covered the basics of interferometers in undergrad. We went over stuff like the Michelson-Morley experiment and obviously did wave interference, but not as much in terms of modern application. It seems to me that devices where multiple light beams are sent to interfere directly, and then detected, are called interferometers. This makes sense to me as you are using the interference of the two signals to measure something or to filter noise. But, in the notes I have for my project, the basic example of an interferometer array made of two telescope dishes looking at some source has the signal correlation be a multiplication instead. I understand that this would also show you where the signals correlate, and would cancel out some random noise that is specific to one of the telescopes. But this doesn't really seem like it is interference. Or am I just doing wrong something really basic to do with interference? Thanks. [link] [comments]  |
| How do Herpes viruses replicate inside muscle and nerve cells without killing host cells? Posted: 11 Apr 2020 09:34 PM PDT |
| What is Folding@Home doing while trying to research Covid-19? Posted: 11 Apr 2020 08:54 AM PDT I understand how Folding@Home allows for large computational loads to be distributed and completed but I don't at all understand the work that's being ran on it. How is the data being ran on it helping against Covid-19? Here's the workload I'm running right now: Project 16410 SARS1 Non-structural-protein (NSP15) from 2003 outbreak – useful for comparing to SARS-CoV-2 [link] [comments]  |
| Posted: 12 Apr 2020 04:02 AM PDT |
| Posted: 11 Apr 2020 03:06 PM PDT I understand this would take a really strong magnet moving at really fast speeds, but is it even possible, am I understanding faraday's law correctly? [link] [comments]  |
| Posted: 11 Apr 2020 09:44 AM PDT |
| How fast should an image be flashed on a monitor screen for it to be unnoticeable or unrecognizable? Posted: 12 Apr 2020 12:26 AM PDT |
| How would one derive Wien's distribution law? Posted: 12 Apr 2020 12:11 AM PDT Just to clarify, I don't mean the displacement law, that's easy. The question is what assumptions did Wien start with to get what he got? [link] [comments]  |
| How long did it take for dinosaurs to go extinct? Posted: 12 Apr 2020 03:23 AM PDT Considering alvarez hypothesis, the meteor managed to make a crater of 93 miles, did all the dinosaurs belonged to that one region? or was there an ecological collapse? Was it so big to wipe all the dinosaurs on the planet? Would any other hypotheses provide better answers? [link] [comments]  |
| Posted: 11 Apr 2020 03:04 PM PDT I'm wondering if anyone knows what technically qualifies as a smoke point, and how they're calculated. I ran a little experiment, that verified my hunch, but online resources all refuted it. I just bought some flax oil for my cast iron, because all the people say it's got a high smoke point and ideal for seasoning it. Out of the blue, I decide to Google what the smoke point for flax oil, (unrefined) is and found 225 degrees F, 107 C. Yet when I applied a coat of it to my pan, and pointed my heat measuring gun on it, it only started smoking at around 400+ F. Why is there such a large discrepancy? Is there perhaps a chemical bond that changes it when it touches iron? Is there another factor besides heat used to determine it "officially?" [link] [comments]  |
| How do patients that have recovered from Covid, test positive again? Posted: 11 Apr 2020 10:33 AM PDT Is it an issue with the testing, does the virus turn dormant ? [link] [comments]  |
| Posted: 11 Apr 2020 11:21 AM PDT |
| Is it possible for a tidally locked planet to have a tidally locked moon? Posted: 11 Apr 2020 02:28 PM PDT |
| Why don't neutrinos interact with matter? Posted: 11 Apr 2020 09:53 PM PDT |
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