Is there any limit to how dense matter can be? |
- Is there any limit to how dense matter can be?
- Are the superheavy elements well-mixed in the galaxy? Are there "nuclear deserts" where one might find the heaviest things (tellurium) absent?
- Might not be the right sub but why are the first four hydrocarbon roots not greek roots?
- Oat Milk bad for Reproductive Organs?
- Why did we used to use oil derricks without pump jacks?
- Which animal species came the closest to going extinct and then successfully recovered?
- How can collisions between molecules in the gas-phase result in cooling i.e. "collisional cooling" when collisions are also used to activate and fragment molecules i.e. "collision-induced dissociation"?
- Why is sensitivity lower than specificity in COVID tests?
- What causes visual noise in low light conditions?
- Are there any animals that bait prey, by pretending to be prey (for their prey) themselves?
- How is a space telescope able to take pictures of very distant objects without blur?
- Why does cholecystitis cause fever?
- Is there any difference in vision capabilities because of the color of our eyes?
- What ever happened to all the radiation that dispersed into the ocean after the Fukushima nuclear disaster?
- Do animals die of thirst in the winter?
- What happens to the intron after a mature RNAs is produced?
- Why do we have regional accents and why is it so hard to mimic another accent?
- Any reason for Greece’s one of a kind geographic shape, and why the coastline is so particularly unique from a geological standpoint?
- How does a solar panel produce useful current?
| Is there any limit to how dense matter can be? Posted: 29 Jan 2022 09:02 AM PST Was watching a video about the Big Bang yesterday and they mentioned that in the beginning all the matter in the universe was packed into an unimaginably tiny space. Which got me wondering: is there any physical limit to how much matter can be packed into a small space? Also, I tagged this "astronomy" as it seems like this would fall under the astrophysics category. Sorry if that's not the case. [link] [comments] |
| Posted: 29 Jan 2022 11:00 AM PST |
| Might not be the right sub but why are the first four hydrocarbon roots not greek roots? Posted: 29 Jan 2022 08:49 AM PST I've always wondered this but since I'm now taking organic chem I really just want to understand. It's kinda been driving me mad the past half hour. Like why are the first four made up but the rest are Greek roots? Why not make them either all Greek or if the scientific community really wanted to differentiate hydrocarbons, all Latin (ok that would actually be worse IMO), like we use Greek roots 1-4 with non-hydrocarbons, and I' pretty sure Greek roots for 11-24, 21-24, etc. are used. Why are meth-, eth-, prop-, and but- the roots for 1-4, what's the logic behind it? [link] [comments] |
| Oat Milk bad for Reproductive Organs? Posted: 28 Jan 2022 11:16 AM PST Barista here! Just had a customer order a Pumpkin Spice Latte and when I said Oat milk was our nondairy option, he backed away and said "whether you know it or not, oat milk messes with your reproductive organs." I then spelled O-A-T to confirm and said, "well I drink it all day so that's great" He confirmed oat and walked away. [link] [comments] |
| Why did we used to use oil derricks without pump jacks? Posted: 29 Jan 2022 05:00 PM PST I've been researching oil extraction for the past few weeks and something has confused me. I've discovered that oil derricks are generally used for drilling oil wells, and pump jacks for actually extracting the oil. This makes sense to me. However, I'm confused by some images I've seen of past drilling operations (and some present ones) like those in this article: https://99percentinvisible.org/article/hollywood-worthy-camouflage-uncovering-the-urban-oil-derricks-of-los-angeles/ how does simply having an oil derrick work? Also, particularly for the third image, why were there hundreds of oil derricks so densely packed together? Surely they'd just be extracting from the same oil field? [link] [comments] |
| Which animal species came the closest to going extinct and then successfully recovered? Posted: 28 Jan 2022 07:29 AM PST Based on what I could find, the species that came the closest to extinction is the Laysan Duck (Anas laysanensis) which reached an all-time-low population of 12 Individuals and then rebounded to several hundred according to the IUCN. I'm curious if there are any species that came closer to going extinct than this one. [link] [comments] |
| Posted: 28 Jan 2022 04:14 AM PST This seems contradicting to me. Can someone explain the difference between a scenario where collisional cooling dominates and a scenario where collisional activation dominates? My particular example is for peptide ions in a mass spectrometer in case different theories apply for different regimes. [link] [comments] |
| Why is sensitivity lower than specificity in COVID tests? Posted: 28 Jan 2022 05:49 PM PST My common sense assumes that it's much more important to make sure positives are identified accurately, since it's not as big a deal having a false positive isolated than a false negative running around the streets [link] [comments] |
| What causes visual noise in low light conditions? Posted: 28 Jan 2022 06:11 PM PST It's something I've noticed in the past, but exclusively in the dark. Today I was sitting outside and the sun was setting. I noticed the appearance of what looked like visual noise on a camera in the darker areas of the sky and none on the lighter portion. The "dots" I guess I would call them were miniscule and there were far to many to pick one out and follow it. If I had to describe them I'd say it looked like a swarm of bugs from a decent distance away. I assume this is common, so I'm wondering what in either the eyes, or in the way the brain interprets their information causes it. Edit: To be clear. I am NOT talking about a camera. This post is probably dead, but I just wanted to update incase anyone else sees. This is something that happens to me, seeing through MY eyes in exclusively low light/dark conditions. It does looks a lot like the noise through a camera. Even as I type this I can look to a dark part of the room and see the noise. [link] [comments] |
| Are there any animals that bait prey, by pretending to be prey (for their prey) themselves? Posted: 28 Jan 2022 02:49 PM PST I've tried googling the question, but I couldn't find any good answer (instead I got general answers regarding prey) [link] [comments] |
| How is a space telescope able to take pictures of very distant objects without blur? Posted: 28 Jan 2022 05:40 PM PST Take for instance the Hubble Space Telescope, we send it into LEO, and now we want Hubble to photograph something very distant 160 or however many degrees in the other direction. Now before I get to my question, we know that an object in space that has been acted upon by a force will continue in whichever way the force acted upon it. So we have hubble and now we order it to use its thrusters to maneuver into the direction of the distant object, now as it is approaching the stopping mark, it begins to counter thrust to come to a complete stop right? But there's my question, does it 100% come to a full stop? As in it is not even moving 0.000000.... m/s in any direction, and if thats not the case, wouldn't viewing insanely distant stars or any object become blurred due to even the tiniest of movements? Thank you in advance. [link] [comments] |
| Why does cholecystitis cause fever? Posted: 28 Jan 2022 07:08 PM PST If it is caused by stones building up in the cystic duct? Is it because bacteria builds up there after the blockage forms? [link] [comments] |
| Is there any difference in vision capabilities because of the color of our eyes? Posted: 28 Jan 2022 12:18 PM PST |
| Posted: 28 Jan 2022 12:35 PM PST Did the levels dissipate to where they were no longer a concern or are we more or less just turning a blind eye to it? [link] [comments] |
| Do animals die of thirst in the winter? Posted: 28 Jan 2022 04:06 PM PST If wrong subreddit, please send me to the right one. I know ice melts, but if it doesn't melt fast enough, what happens? Do they find a new source? Do they have a way to melt the ice? Are they winter camels? [link] [comments] |
| What happens to the intron after a mature RNAs is produced? Posted: 28 Jan 2022 11:12 AM PST While searching how protein is produced by the cell i found out that RNA needs to mature before becoming RNAs and that it is made with spliced parts from transcription called exons that got connected to create an RNAs sequence BUT, when i search what happens to the intron after a mature RNAs is produced i get different results. I want to know what happens to the introns and how are the tRNA,rRNA, and pRNA made [link] [comments] |
| Why do we have regional accents and why is it so hard to mimic another accent? Posted: 28 Jan 2022 05:31 PM PST In linguistics, how do regional accents develop, and why do we find it so difficult to mimic? [link] [comments] |
| Posted: 27 Jan 2022 02:51 PM PST |
| How does a solar panel produce useful current? Posted: 27 Jan 2022 01:21 PM PST I don't understand how the depletion region can preferentially/unidirectionally pass electrons. It seems to violate the laws of thermodynamics to take random motion of the freed electrons and turn it into useful energy. It's basically Maxwell's Demon. Why can't we just put a bunch of PN junctions between metals to preferentially send those free electrons in one direction for infinite energy when it obviously works in a solar panel? I actually got a bloody masters degree in solar technology so I can do all the calculations and design my own cells but how this critical part works is beyond me. [link] [comments] |
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