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Tuesday, January 28, 2020

Does surviving a viral infection always result in immunity?

Does surviving a viral infection always result in immunity?

Does surviving a viral infection always result in immunity?

Posted: 28 Jan 2020 01:55 AM PST

Let's take ebola, for example. I've ready that it has about a 10% survival rate. Do those survivors become immune for life, or can they get re-infected and suffer symptoms again?

submitted by /u/bobhwantstoknow
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How can we hear for example 50Hz sound waves when its wave length is several times the length of our ears?

Posted: 28 Jan 2020 01:10 AM PST

If you forced different gases through a whistle, would it change the sound?

Posted: 27 Jan 2020 10:28 PM PST

Why do we sometimes observe accreting black holes with asymmetric jet structure?

Posted: 28 Jan 2020 12:39 AM PST

It is my understanding that spinning black holes emit two jets in opposite directions if they accrete matter. However, if you look at black holes such as the AGN in M87, you only really observe one of these jets. Why is the other jet not visible, or why is it not there?

submitted by /u/Redbiertje
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How Does Alcohol Kill Viruses?

Posted: 27 Jan 2020 01:26 PM PST

If viruses are not living, how does alcohol 'kill' them? Or does it act like an enzyme/protein inhibitor to disrupt the protein coat?

submitted by /u/TheExplodingMushroom
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Why do the prongs on electrical plugs have holes in them?

Posted: 27 Jan 2020 07:40 AM PST

Why has the human eye evolved to form real images instead of virtual images?

Posted: 28 Jan 2020 12:05 AM PST

What evolutionary advantage did forming real images give?

submitted by /u/armagedda_pony
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What would be different if our sun was a first generation star?

Posted: 27 Jan 2020 05:47 PM PST

Does metals gets red at the same temperature?

Posted: 28 Jan 2020 01:19 AM PST

My question is, are the metals (1000+C melt) getting red at the same temperature? And can we visually tell that it's already a liquid, if we use some levitation magic like induction furnace?

submitted by /u/ExChange97
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Can small particles like sequins get stuck on stomach or intestinal linings or other parts of the GI tract?

Posted: 27 Jan 2020 03:21 PM PST

Can stuff like that get stuck on GI tract linings and potentially cause problems later on in the future?

submitted by /u/nicolas77
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Why do people barely get hungry when sick, even if the illness has nothing to do with their stomach?

Posted: 27 Jan 2020 08:13 AM PST

How does a fractional distillation column work?

Posted: 27 Jan 2020 11:38 AM PST

So I am entertaining the thought of producing deuterium oxide from seawater in a lab environment using (fractional? don't know if this is any different from normal) distillation. I wanted to know how it works. So if I were boiling off seawater trying to distill deuterium, which of the two would remain in the original glass and what would make its way to the top to go through a condenser? I haven't even taken a high school chemistry course, but I can usually understand it when it's explained properly. If you want specifics for anything for any reason, ask please.

Thanks!

submitted by /u/throwmeaway0818
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Can strong winds significantly impact how far/fast sound travels through air?

Posted: 27 Jan 2020 08:59 AM PST

What happens if sister chromatids don't seperate in mitosis/meiosis?

Posted: 27 Jan 2020 04:59 PM PST

When thinking about light, does a higher Kelvin rating include all the wavelengths below it?

Posted: 27 Jan 2020 10:47 AM PST

I'm trying to understand the concept of Kelvin in terms of light wavelengths. To my understanding 'white' is all light wavelengths together, so a 5000K or 6500K light would have all wavelengths where a 3000K light would only have the yellows and oranges. Is this correct? Because in listening to some YouTube videos to try and figure it out I've heard both explanations, so just wanting to know what the correct answer is. Should I just get the highest Kelvin lightbulb I can find to insure as many wavelengths of the light spectrum are included?

submitted by /u/PlanarVet
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What is the difference in technology between how a touch screen works and a track pad?

Posted: 27 Jan 2020 04:02 PM PST

I ask this since the rubber bit on the end of my pen works as a stylus on my phone, but not on a laptop track pad.

submitted by /u/valkyrie_wave
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Why do lipids move so fast in the plasma membrane?

Posted: 27 Jan 2020 03:19 PM PST

Lipids can rotate and move laterally (sometimes flip), but I don't understand what forces actually makes this occur. Is it the electric field? Are lipids in a constant migration dodging something? Surely all that movement isn't stochastic.

More of a biophysics question but I can't add two flairs.

submitted by /u/WiseFarmer
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Why do lipids need lipoproteins to be carried through the bloodstream if they are insoluble in it?

Posted: 27 Jan 2020 01:54 PM PST

First off I'm sorry if there is a "NoStupidQuestions for Science" subreddit that I missed when looking.

I was wondering why lipids need transport carriers such as lipoproteins to travel through the bloodstream if they are already insoluble in it? Is there something else from which the lipoproteins protect the lipids or some other purpose?

submitted by /u/Sudopino
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Monday, January 27, 2020

What methods are used to trace the origin of a new virus?

What methods are used to trace the origin of a new virus?

What methods are used to trace the origin of a new virus?

Posted: 27 Jan 2020 05:30 AM PST

What sort of methods of investigation/experimentation are used to determine/trace the origin of a newly discovered virus? That is to say, When a new virus is discovered, how do we find out where it first appeared?

submitted by /u/bungling_juffs
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How deep below sea level could a canyon theoretically get?

Posted: 27 Jan 2020 03:42 AM PST

Would it get too unstable at some point and collapse in on itself?

submitted by /u/EarballsOfMemeland
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How do we ensure that launched rockets don’t collide with orbiting satellites?

Posted: 27 Jan 2020 02:54 AM PST

What happens when you “get the wind knocked out of you”?

Posted: 26 Jan 2020 04:23 PM PST

Do stars that are about to go supernova cause any visual cues before it actually happens?

Posted: 27 Jan 2020 02:32 AM PST

Hello,

as title says do stars that are about to go supernova create any actual visual cues in them when they are getting close to going supernova like lets say when they enter into iron fusion phase (or any other phases such as silicon) or area about to enter into it and yes im aware that stars cannot fuse iron. Besides them dimming would observer notice any noticable difference in their orbit in it such as sudden colour change, more violent shedding of their outer layers or are visual cues too slow to rise from core that they do not have time to make it into surface before star goes supernova? Would i notice something different in orbit rather than light-years away such as case in betelgeuse dimming?

What about sudden tempature changes or any other noticable differences before supernova or moments before it? Would i really see star rupture in half if i could see it in slow motion enough? Thank you in advance for answers.

submitted by /u/Jyryp
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Does DNA vary in length, or is it the same in every case?

Posted: 27 Jan 2020 05:01 AM PST

Are simple creatures just working with shorter DNA, and thus can't be as complex as humans? Or if DNA is always the same length, how does a simpler creatures DNA compare to ours? Is there just a lot of 'blank space?' (parts that don't really add anything)

submitted by /u/stexski
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What is it about the flu virus that makes it seasonal?

Posted: 26 Jan 2020 04:24 PM PST

How do twisted pair wires reduce electromagnetic interference?

Posted: 26 Jan 2020 03:59 PM PST

I've scoured the web and I just keep finding sources that elaborate what a twisted pair is or their history. I cannot find anything that explains how twisting 2 wires around each other insulates them and prevents magnetic fields affecting them. Are they creating their own protective magnetic field? What is happening?

Edit: what a great turnout! Seriously thank you everyone for the replies. Everyone explained it a little differently, but in the end it helped visualize it for me.

submitted by /u/sniper23491
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Will the Sun's gravitational pull on Earth change as it expands?

Posted: 26 Jan 2020 01:34 PM PST

I was thinking about the Sun's expansion at the end of it's life- as it expands a portion of it's matter will become ever closer to us, but on the opposite side of the sun from us matter will be getting farther away. Will the change in distance of matter on both sides cancel itself out? Will the Earth experience a greater pull, sucking it in before the expansion would have consumed it?

Is this a completely misguided question?

Thanks in advance.

Edit: I did Google the question before asking, but none of the answers addressed the matter / mass getting closer to Earth, which to me would change the gravitational force. The answers simply stated that gravity wouldn't change. The volume is increasing, but not mass.

submitted by /u/Arkadin99
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What determines a virus' incubation period?

Posted: 26 Jan 2020 06:14 PM PST

What would stop a virus from taking longer to incubate like a week or more? What factors are at at play and why are most viruses in that 1 to 3 day range or so? Is it possible for a virus to incubate longer? What do you think would be the maximum incubation period possible?

submitted by /u/rapunzelsasshair
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How did the first single celled organisms appear on earth?

Posted: 26 Jan 2020 05:58 PM PST

Is it known whether or not volcanism was more vigorous throughout the time of the dinosaurs, and if so, by how much? Would there have been a noticeable difference between now and 100 million years ago?

Posted: 26 Jan 2020 09:31 PM PST

Earth cools down gradually as it ages. The first eon was so hot there was no solid surface. I'm curious about how quickly volcanism would slow down, if at all. Would it do so incrementally or continuously?

By "slow down" I mean less volcanoes, less eruptions from volcanoes, smaller eruptions, or some combination of those three.

submitted by /u/jaggedcanyon69
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Which is stronger (harder to break by means other than dissolving): a triple bond or an ionic bond?

Posted: 26 Jan 2020 03:29 PM PST

When did the term "climate change" come into use?

Posted: 26 Jan 2020 11:39 AM PST

When I was a kid, 80s and 90s, the term "global warming" was commonly used to describe our ecological influence. Then sometime in the early 2000s the term "climate change" started being used everywhere as the common verbage for our ecological influence.

When did "climate change" come into use by the scientific community?

What's the story of "climate change" being funneled down to us plebs?

If it wasn't scientists who invented the term "climate change", who did? Why?

Thanks

submitted by /u/RajamaPants
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if plankton produce oxygen, where does the carbon go?

Posted: 26 Jan 2020 01:39 PM PST

with regular plants, carbon goes to making the plant - what does plankton do with the carbon as it produces oxygen?

submitted by /u/mbrowning00
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Where does the gas go when you "inner-fart"?

Posted: 26 Jan 2020 01:25 PM PST

Why are there no Cnd and Dnv point groups?

Posted: 26 Jan 2020 10:40 AM PST

Do green bell peppers photosynthesize, or does their green color come from something else?

Posted: 26 Jan 2020 01:55 PM PST

Normally I don't think of a plant doing photosynthesis on its fruits, but today I was chopping a green pepper and got curious about whether it was possible. Thanks!

submitted by /u/WaitForItTheMongols
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Is carbonated water as hydrating as flat water?

Posted: 26 Jan 2020 03:12 PM PST

With the recent rise in popularity of carbonated waters, I feel this is an important question regarding suggested daily intake. Personally, I feel less hydrated after drinking a can of La Croix or bottle of Pellegrino as opposed to a glass of water. Is it because I equate carbonation with soda or are my observations valid? Please (dis)prove with an explanation. Thanks!

submitted by /u/mvdxx
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Sunday, January 26, 2020

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?

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?

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 ?

submitted by /u/Rcknr1
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How can sand an clay be used as a mold for molten liquids like iron, when the melting point of the mold is lower?

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?

submitted by /u/TygreWolf
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When an child is raised in a household that speaks more than one language, how aware are they that they are learning multiple languages?

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?

submitted by /u/blissed_and_gone
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Is the total mass in the universe is constant?

Posted: 26 Jan 2020 04:46 AM PST

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)?

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?

submitted by /u/mikeymikemam
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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?

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.?

submitted by /u/grizwald87
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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?

submitted by /u/CSR_Quesad1lla
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How does an illness get distinguished as something new, especially if its symptoms are similar to other known conditions?

Posted: 26 Jan 2020 04:15 AM PST

How come Alkaline chemicals can help fight against viruses despite being basic chemicals, hence potentially neutralizing Vitamin C (Ascorbic acid)?

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?

submitted by /u/bleachedagnus
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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?

submitted by /u/siahayes
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So tardigrades have been a big help in space research, but what other extreme conditions have they been used for research on earth?

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?

submitted by /u/ZanyT
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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?

submitted by /u/fizzbish
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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?

submitted by /u/andaonetwothreefour
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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.

submitted by /u/canup
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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 ?

submitted by /u/Jahdgreat
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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?

submitted by /u/MELCHIZIDEK2410
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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: 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?

submitted by /u/kurashikiazusa
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