Why aren't NASA operations run in the desert of say, Nevada, and instead on the Coast of severe weather states like Texas and Florida? |
- Why aren't NASA operations run in the desert of say, Nevada, and instead on the Coast of severe weather states like Texas and Florida?
- Is not wanting to have kids becoming more common?
- How can sand an clay be used as a mold for molten liquids like iron, when the melting point of the mold is lower?
- When an child is raised in a household that speaks more than one language, how aware are they that they are learning multiple languages?
- Can arthropods like crabs and lobsters feel things with their claws?
- Is the total mass in the universe is constant?
- When gravitational waves pass over LIGO, shouldn't we also be able to see two black holes merging somewhere at that very instant (if we knew where to point our telescopes)?
- The Manhattan Project required 18.9 million pounds of uranium ore. The Little Boy nuclear bomb used 141 pounds of enriched uranium. Where did it all go, and at what stage?
- How did the underwater internet cables get there?
- How does an illness get distinguished as something new, especially if its symptoms are similar to other known conditions?
- How come Alkaline chemicals can help fight against viruses despite being basic chemicals, hence potentially neutralizing Vitamin C (Ascorbic acid)?
- What would you see if you were exposed to a high enough neutrino flux?
- What’s the difference between fog and regular high humidity?
- So tardigrades have been a big help in space research, but what other extreme conditions have they been used for research on earth?
- Why are some non-iron metals like Cobalt, considered ferrous? Is this true of their elemental form?
- Why does the radiator expansion tank in your car connect at the top and bottom?
- What is the difference between point mutations and Single Nucleotide Polymorphisms?
- Why do piercing holes close even after the wound has healed?
- Do tires driven on a wet pavement lose less rubber than those driven on dry pavement?
- What happens to woman’s digestive and urinary system during pregnancy?
- Why are comparisons between structurally distinct inhibitors of the same protein not conclusive?
- Why are most, if not all antiviral drugs designed to attack the virus indirectly such as during replication and never directly such as binding to the virus, making it useless?
| Posted: 25 Jan 2020 11:26 AM PST |
| Is not wanting to have kids becoming more common? Posted: 26 Jan 2020 05:41 AM PST I find more and more people my ages (20-30 ish) say they don't want to have kids. Almost all my friends except one say they don't want to have children. I feel like my parents generation had a much different attitude towards having kids ? [link] [comments]  |
| Posted: 26 Jan 2020 05:41 AM PST When pouring molten iron into a sand/clay mold, why doesn't the mold melt? How does it continue to hold its shape and not melt away? [link] [comments]  |
| Posted: 26 Jan 2020 02:43 AM PST |
| Can arthropods like crabs and lobsters feel things with their claws? Posted: 26 Jan 2020 03:14 AM PST I've always assumed arthropods can't feel pressure with their exoskeletons in the same way that we do, but if that's true I can't imagine it would be easy for them to grasp things with their claws. Do they have a way of "feeling" whether or not an object is touching their claws, or do they operate purely by sight? [link] [comments]  |
| Is the total mass in the universe is constant? Posted: 26 Jan 2020 04:46 AM PST |
| Posted: 26 Jan 2020 03:47 AM PST The waves from any black hole merger might have taken hundreds of millions if not several billion years to reach us, but then so would the light from that merger. If I'm not mistaken, the gravitational waves and the light should arrive simultaneously. Is that accurate? [link] [comments]  |
| Posted: 25 Jan 2020 06:42 AM PST I've done some reading on Wikipedia about the basic process of enriching uranium for the purpose of nuclear weapons production, but the sheer scale of the raw input for the Manhattan Project really surprised me. How was all that uranium ore used? How much of it was directly required for the creation of that first nuke, versus experiments, the construction of nuclear reactors, etc.? [link] [comments]  |
| How did the underwater internet cables get there? Posted: 25 Jan 2020 03:55 PM PST There are cables underwater that basically send signals throughout the entire world and make up the Internet. How did they get installed? Did someone have to swim to the bottom of the ocean and put them in place? [link] [comments]  |
| Posted: 26 Jan 2020 04:15 AM PST |
| Posted: 26 Jan 2020 02:39 AM PST |
| What would you see if you were exposed to a high enough neutrino flux? Posted: 25 Jan 2020 04:16 PM PST Neutrinos are flying through us and we don't notice anything because the probability for them to interact with the mater around us is almost 0. But in some cases like supernova explosions the neutrinos do interact with mater. If you were exposed to the neutrino flux from a star going supernova a few AU from you and assuming it would not kill you what exactly would you see/feel? [link] [comments]  |
| What’s the difference between fog and regular high humidity? Posted: 25 Jan 2020 03:15 PM PST Also, fog is hard to see through whereas humidity is completely clear. Is fog just even higher humidity? [link] [comments]  |
| Posted: 25 Jan 2020 04:24 PM PST |
| Why are some non-iron metals like Cobalt, considered ferrous? Is this true of their elemental form? Posted: 25 Jan 2020 04:14 PM PST Edit: So I've found out that ferrous does indeed mean "contains iron," and there are just some articles where people misuse the word. For example, this website erroneously lists a lot of non-iron metals as ferrous, and this website seems to be erroneously using ferrous instead of ferromagnetic. Cobalt, Nickel, Manganese, and Gadolinium are not ferrous. Minus Manganese they are all ferromagnetic. Original Post: As I understand it "ferrous" means "contains iron," and until very recently I thought that only iron and iron alloys were ferrous but in researching magnetism AKA ferromagnetism I recently find out that Cobalt, Nickel, Manganese, and Gadolinium are also considered ferrous. I'm trying to understand how something that doesn't contain iron fits the adjective of "contains iron." The only reason I can come up with is that pure elemental forms of these metals would not be considered ferrous, but the forms of these metals that are found naturally or used in everyday application do contain iron and are therefore considered ferrous? Essentially, Cobalt metal is ferrous, but elemental Cobalt is not? Is that a true statement or is there some other reason why these metals are considered ferrous? [link] [comments]  |
| Why does the radiator expansion tank in your car connect at the top and bottom? Posted: 25 Jan 2020 01:36 PM PST I was checking my car coolant while driving cross country and I simply can't figure out why the expansion tank needs both a bottom and top connection. Of it's a closed system pressure should be the same everywhere, so if the fluid needs to expand why wouldnt it just expand from the bottom hose into the tank? What's the point of the pressure valve at the top releasing only to then expand into the tank? OR is it to allow air to leave and enter to and from the outside as needed? What am I missing? [link] [comments]  |
| What is the difference between point mutations and Single Nucleotide Polymorphisms? Posted: 25 Jan 2020 10:27 AM PST Are SNPs a type of point mutations? If so, what other types of point mutations would there be--would these include deletion and such? [link] [comments]  |
| Why do piercing holes close even after the wound has healed? Posted: 24 Jan 2020 08:30 PM PST Maybe I'm assuming that piercing holes do indeed close after the wound has healed, but from personal experience, my ear piercings seem to be a tighter fit when I haven't worn earrings in a while (in the process of closing?) My other assumption going into this is that in order for skin to 'fuse' there needs to be an open area (isn't the top layer of skin dead? How can it receive signals to begin fusing together thus closing the hole?) I'd appreciate any clarifications or telling me my assumptions are wrong. [link] [comments]  |
| Do tires driven on a wet pavement lose less rubber than those driven on dry pavement? Posted: 24 Jan 2020 09:31 PM PST |
| What happens to woman’s digestive and urinary system during pregnancy? Posted: 24 Jan 2020 10:52 PM PST Asking for pathophysiology. I can't seem to grasp the information properly. Can someone explain ? [link] [comments]  |
| Why are comparisons between structurally distinct inhibitors of the same protein not conclusive? Posted: 25 Jan 2020 07:24 AM PST I was discussing this topic earlier in the week, but I'm still not completely clear, so any help would be appreciated. Let's say I have a drug, Drug A, which has an anti-proliferative effect on a cell line, but can bind two protein targets, Target 1 and Target 2. If I think that Target 1 causes the anti-proliferative effect, then I propose that an experiment to validate this would be to feed the cell a different inhibitor of Target 2, Drug B. If Drug B doesn't exert an anti-proliferative effect, then my hypothesis would be validated. However, apparently if drug A and drug B are structurally different, even if they bind to the same enzyme, this is not sufficient evidence. Can anyone explain why? [link] [comments]  |
| Posted: 24 Jan 2020 09:08 PM PST There seems to be many ways that antiviral drugs are designed to work, such as attacking a specific essential enzyme in the life cycle of the virus or releasing a certain chemical or protein to trigger an immune reaction, but I have not heard of a drug that attacks the virus directly by reacting with it or binding to it. Does such a drug exist? If not, why isn't it feasible? [link] [comments]  |
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