What’s the difference between men’s and women’s multivitamins?

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• What’s the difference between men’s and women’s multivitamins?
• When a person observes light at the limits of the visible spectrum, what does the transition to UV or IR look like?
• How many metric tonnes of plants/fossils were necessary to generate such immense amounts of oil?
• Is there any way to prove that all points on the number line correspond to a real number?
• Which is brighter, a full moon from earth or a full earth from the moon?
• Are chewable vitamins more easily absorbed by the body than “pill” vitamins?
• How do robins find worms underground? Are they able to locate food more accurately than simply guessing and digging?
• How does being born blind or deaf influence the way you think?
• Can immunization be passed on?
• Do all stars have the same photospheric composition?
• How did fish appear in Endorheic basins such as the Caspian Sea?
• Why does a note on a guitar sound different on a piano (and every other instrument)?
• Why does a spaceship burn on return and not on the way out of the atmosphere?
• why do we supply IV fluid or any other pain relieving drug through blood stream not make the patient just drink it?
• Humans and countless other species use mouths to both eat and make sounds. Are there animals out there that produce sounds from a part of their body that isn't where they also consume?
• Do we have satellites around other celestial bodies?
• Why do the beeps from Sputnik sound like they are echoey? Is this bouncing of the radio signals or something about how the sound was generated?
• Which would burn more calories by: running a mile, walking a mile, or are they the same?
• How does the size of a proton change under different conditions?
• What is the difference between freeze-out and decoupling?
• What does it mean that "the electromagnetic force is carried by photons"?
• Does the moon/sun's gravitational pull affect how high I can jump height on earth?
• Do animals have social and behaviour-affecting substances, like alcohol is for humans?

What’s the difference between men’s and women’s multivitamins? Posted: 01 Apr 2018 10:27 PM PDT submitted by /u/caraiggy [link] [comments]

When a person observes light at the limits of the visible spectrum, what does the transition to UV or IR look like? Posted: 01 Apr 2018 10:06 PM PDT Does it gradually fade away or is there a point where it suddenly goes black? submitted by /u/angryco1 [link] [comments]

How many metric tonnes of plants/fossils were necessary to generate such immense amounts of oil? Posted: 02 Apr 2018 04:07 AM PDT submitted by /u/tarandfeathers [link] [comments]

Is there any way to prove that all points on the number line correspond to a real number? Posted: 01 Apr 2018 09:57 PM PDT And vice versa (that all real numbers have a unique spot on the number line)? If so, what is it? I've noticed that this is something I've been assuming for a while. I was wondering if this is just a convenient shorthand or if there is a rigorous connection. submitted by /u/ACuteMonkeysUncle [link] [comments]

Which is brighter, a full moon from earth or a full earth from the moon? Posted: 01 Apr 2018 10:26 PM PDT submitted by /u/oncemoreforscience [link] [comments]

Are chewable vitamins more easily absorbed by the body than “pill” vitamins? Posted: 02 Apr 2018 05:01 AM PDT My friend told me that chewable are more easily absorbed by the body. Is that true? submitted by /u/BlargAttack [link] [comments]

How do robins find worms underground? Are they able to locate food more accurately than simply guessing and digging? Posted: 02 Apr 2018 06:03 AM PDT submitted by /u/NYSEstockholmsyndrom [link] [comments]

How does being born blind or deaf influence the way you think? Posted: 02 Apr 2018 05:52 AM PDT submitted by /u/payik [link] [comments]

Can immunization be passed on? Posted: 01 Apr 2018 09:06 PM PDT Can some one tell me if I made someone immune to a virus using CRISPR could they pass on that immunization? submitted by /u/notbored1 [link] [comments]

Do all stars have the same photospheric composition? Posted: 01 Apr 2018 07:33 PM PDT I googled this question and only received vaguely related articles and blog posts. I would assume the photospheric composition of a star changes whit the different stages of a stars life cycle (O to M classes) but I would like to know for sure rather than accept false information. submitted by /u/Magi-Koopa [link] [comments]

How did fish appear in Endorheic basins such as the Caspian Sea? Posted: 01 Apr 2018 11:17 PM PDT submitted by /u/Jordy_McCroquette [link] [comments]

Why does a note on a guitar sound different on a piano (and every other instrument)? Posted: 02 Apr 2018 02:44 AM PDT submitted by /u/Skrtmvsterr [link] [comments]

Why does a spaceship burn on return and not on the way out of the atmosphere? Posted: 02 Apr 2018 02:23 AM PDT submitted by /u/Greien218 [link] [comments]

why do we supply IV fluid or any other pain relieving drug through blood stream not make the patient just drink it? Posted: 02 Apr 2018 05:59 AM PDT submitted by /u/JordaNova73 [link] [comments]

Humans and countless other species use mouths to both eat and make sounds. Are there animals out there that produce sounds from a part of their body that isn't where they also consume? Posted: 01 Apr 2018 10:54 PM PDT submitted by /u/rroneb [link] [comments]

Do we have satellites around other celestial bodies? Posted: 01 Apr 2018 11:44 AM PDT I've always wondered. We do fly-bys with probes, but why not just park an imaging satalite above, say, Jupiter so we can monitor it and its moons for years? Or do we already have something like that? submitted by /u/TrueRadicalDreamer [link] [comments]

Why do the beeps from Sputnik sound like they are echoey? Is this bouncing of the radio signals or something about how the sound was generated? Posted: 01 Apr 2018 11:03 AM PDT The sound, for reference: https://youtu.be/lfnfNe31fmY submitted by /u/dyyys1 [link] [comments]

Which would burn more calories by: running a mile, walking a mile, or are they the same? Posted: 01 Apr 2018 01:14 PM PDT I think this may boil down to a biomechanics problem and is probably affected by running and walking form. If that's the case, you can assume the most energy-efficient walking and running form. submitted by /u/Shake_That_Acetone [link] [comments]

How does the size of a proton change under different conditions? Posted: 01 Apr 2018 03:14 PM PDT Within different sizes of atomic nuclei what governs changes in the size of the proton? What conjecture is there? What do we know? And how does this affect the density of atomic nuclei? If any astrophysics people know anything about say matter in extreme conditions and it's affect on size that would be interesting to hear as well. submitted by /u/A_Mathematician [link] [comments]

What is the difference between freeze-out and decoupling? Posted: 01 Apr 2018 11:47 PM PDT I've been trying to figure out what the difference between freeze-out and decoupling is with the help of books and google, however I've not been able to come up with anything useful - most everyone equates the terms but that begs the question why there exist such different terms. As I understand it, decoupling means that the particle class we speak of is no longer in thermal equilibrium with it's surroundings. Thus the universe become transparent and they propagate freely from then on - not interacting with the rest. Freeze out means that the particle abundance becomes constant - i.e. there is no more interaction with the rest and equilibrium is left behind. Are my understandings of freeze-out and decoupling right? And what then is the difference between the two? submitted by /u/writerstears [link] [comments]

What does it mean that "the electromagnetic force is carried by photons"? Posted: 01 Apr 2018 09:18 AM PDT So I kind of sort of understand what a force carrier is, and I know that photons are the force carrier for the electromagnetic force. But what does that mean, exactly? When I put two magnets together, they don't emit light or anything, and particles can't pull things together, only push them apart. So what role do photons play in this interaction? And I'd assume that photons are also to blame when it comes to positively charged particles attracting negatively charged particles, but how does that work? Again, particles fired toward another particle should only be able to push them apart, right? So how exactly does the exchange of photons keep charged particles together? And lastly, what about when magnet poles or like-charged particles get close together? I'd assume in this case, photons exchanged between the two objects would push them apart, but why don't we see any visible light when this occurs? submitted by /u/Popopopper123 [link] [comments]

Does the moon/sun's gravitational pull affect how high I can jump height on earth? Posted: 01 Apr 2018 01:15 PM PDT The moon and sun have effects on gravity on earth, which can be seen with the tides, human physiology, and more. My question is if the pull of the moon and sun have enough of an effect on the gravitational acceleration here on earth that I could be able to jump slightly higher when the moon/sun are overhead than when the moon/sun are underneath us? Thanks, rainbows82 submitted by /u/rainbows82 [link] [comments]

Do animals have social and behaviour-affecting substances, like alcohol is for humans? Posted: 01 Apr 2018 01:51 PM PDT submitted by /u/I_GIVE_KIDS_MDMA [link] [comments]

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How did they beam back live images from the moon before the invention of the CCD or digital sensor?? What device turned the image into radio waves?

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• How did they beam back live images from the moon before the invention of the CCD or digital sensor?? What device turned the image into radio waves?
• How does light from research submarines affect deep sea ecosystems?
• What causes this reverse funnel effect from the expulsion gases of a rocket launch?
• Can inconel be made with tungsten in it?
• Why do ceramic objects make a lot of noise for their impact, relative to many other materials?
• Is it possible to "carbonate" liquids with other gasses?
• Why is it that alloying one metal (copper) with another metal that is softer (tin) creates a product (bronze) that is harder than copper, not softer? Is there something about the process of alloying itself that creates hardness?
• Why is there layers in the atmosphere is it's all the same gas, like how do they decide where the layer stops and the next starts?
• Is it theoretically possible to create a cure for all types of cancer? Or when people say "a cure for cancer," they just mean finding more ways to treat specific types of cancer
• What percentage of the water you drink turns to urine, and what percentage goes elsewhere?
• What allows our smartphones to easily register a human touch as input, but negate that of an inanimate object, like a pen?
• I heard that some of the first radios used crystals to 'receive' radio waves. How does this work, and are newer radios operating along the same principle?
• Why is multicollinearity a problem?
• How doesn't entropy break the law of conservation of energy?
• Do Aquatic Animals Suffer from Infectious Diseases?
• Is there a upper bound on how fast planes can travel safely over long distances?
• Why does temperature in the thermosphere increase with altitude?
• Why do I feel my phone go off in my pocket when it is neither going off nor in my pocket?
• In terms of half life, why do certain particles of an element decay while others don't? Why don't all of them decay?
• Does looking through the atmosphere refract the image we see similar to looking through the surface of water?
• How developed are the chicks inside eggs when they're laid?
• What determines how much dark matter a celestial body has?
• How were cranial nerve functions determined?

How did they beam back live images from the moon before the invention of the CCD or digital sensor?? What device turned the image into radio waves? Posted: 01 Apr 2018 02:49 AM PDT submitted by /u/ViddyDoodah [link] [comments]

How does light from research submarines affect deep sea ecosystems? Posted: 01 Apr 2018 03:32 AM PDT I'm just watching some Planet Earth II and I noticed that the submarines are using what seems to be visible light to observe life at the bottom of the ocean near Antarctica. How does this light interact with these deep sea ecosystems? submitted by /u/EveryDayIsLikeMonday [link] [comments]

What causes this reverse funnel effect from the expulsion gases of a rocket launch? Posted: 01 Apr 2018 02:54 AM PDT In a recent SpaceX launch, I noticed a very clear "reverse funnel" effect coming from the thrust(?)/expulsion gases(?) at around 23:40 in this video. It happens just after max Q (which I only understand to be "maximum dynamic pressure"), though I'm not sure if that has something to do with the effect or if it just becomes more visible at that point. It seems to disappear at around 24:15, but it might just be offscreen. Sort-of follow up question: is there something that changes in the system that does and/or would cause the effect to stop? submitted by /u/internet_eq_epic [link] [comments]

Can inconel be made with tungsten in it? Posted: 01 Apr 2018 01:27 AM PDT On the Wikipedia page for inconel, there's a list of the most common alloys of it and what percentages of what types of metal go into making each specific alloy. I noticed that none of them involve tungsten which was surprising to me because inconel is used commonly in such high heat and strength applications. Is there something I don't know about metallurgy that prevents tungsten from being a part of any inconel mix? submitted by /u/Elbynerual [link] [comments]

Why do ceramic objects make a lot of noise for their impact, relative to many other materials? Posted: 31 Mar 2018 06:13 PM PDT I read this story and it got me thinking about that. About how a toilet tank lid nearly caused permanent hearing damage for dropping a "mere" 8 inches. I know this myself from accidentally dropping the edge of a plate, just a few inches. The plates don't break but they are damn loud. What makes these ceramics so loud on impact? submitted by /u/ccricers [link] [comments]

Is it possible to "carbonate" liquids with other gasses? Posted: 31 Mar 2018 04:16 PM PDT What is special about carbon dioxide? can we use other gasses to "carbonate" a liquid instead? If so why c02. If not why can't we. submitted by /u/abk03 [link] [comments]

Why is it that alloying one metal (copper) with another metal that is softer (tin) creates a product (bronze) that is harder than copper, not softer? Is there something about the process of alloying itself that creates hardness? Posted: 01 Apr 2018 04:27 AM PDT I've taken up metalworking lately, I started cold working copper, moved up to casting, alloying and hot working copper, brass and bronze and about a month ago I started learning how to forge iron. I've learned a lot of metallurgical science, especially as a result of learning about heat treating, the mollecular stuff that causes copper to become softer when annealed, or steel to become harder when heated to the critical point and then rapidly cooled by quenching. One thing that I don't know, but I am curious, is why is it that alloying metals creates harder material regardless of the individual components of the alloy — that might not make sense in the way that I've expressed it so here's an example of what I mean, Bronze is an alloy of approximately 85-88% copper and 12-15% tin, and it is significantly harder than copper, however tin is very soft, soft enough that a tin ingot can be deformed by squeezing it with bare hands, similarly brass is 84-86% copper and 14-16-% with 0.5-1% lead in older pieces, it is also harder than copper (but softer than bronze) even though zinc and lead are very soft and much softer than copper — why is it that adding a softer metal to copper makes it harder as opposed to soft? To me that doesn't make any sort of logical sense, since in simple terms if I were to take a cup of water that was 30% sugar (softness) and add another half-cup of water that was 65% sugar, it would have a higher sugar content than it's individual parts and thus be more sweet than the cup that we started with, not less. submitted by /u/Louisianais [link] [comments]

Why is there layers in the atmosphere is it's all the same gas, like how do they decide where the layer stops and the next starts? Posted: 31 Mar 2018 04:31 PM PDT submitted by /u/chrismcgherkin [link] [comments]

Is it theoretically possible to create a cure for all types of cancer? Or when people say "a cure for cancer," they just mean finding more ways to treat specific types of cancer Posted: 31 Mar 2018 05:40 PM PDT submitted by /u/tropiusking [link] [comments]

What percentage of the water you drink turns to urine, and what percentage goes elsewhere? Posted: 01 Apr 2018 06:14 AM PDT submitted by /u/dr_gmoney [link] [comments]

What allows our smartphones to easily register a human touch as input, but negate that of an inanimate object, like a pen? Posted: 31 Mar 2018 05:47 PM PDT submitted by /u/Sophistacatedgamer [link] [comments]

I heard that some of the first radios used crystals to 'receive' radio waves. How does this work, and are newer radios operating along the same principle? Posted: 31 Mar 2018 06:25 PM PDT Does each radio need a crystal in order to function, or do newer radios function in a different manner? thanks submitted by /u/Jay_B_ [link] [comments]

Why is multicollinearity a problem? Posted: 31 Mar 2018 07:55 PM PDT Recently in classes I've been learning about multicollinearity, and from what I'm understanding it's when independent variables in a regression have a high correlation with one another. Why would this be a problem, and could you maybe give a real life scenario example showing how this affects the data? Thank you! submitted by /u/integralfallacy [link] [comments]

How doesn't entropy break the law of conservation of energy? Posted: 31 Mar 2018 05:54 PM PDT Hi guys, I currently read somewhere that the law of conservation of energy only works in processes that are time-symmetrical, meaning that we can't tell whether we are observing the said processes in reverse or not; that's why the density of dark energy is constant as space expands and therefore we have more dark energy as time moves forward. Now, as we know, the total entropy of the universe is supposed to increase over time. Therefore the universe should have more and more entropy as time passes on. Plus the fact that the law of conservation of energy should hold for isolated systems. Finally, Here's my question: Can we consider the entire universe as an isolated system? (I mean, what else is there to affect it?) And if so, what keeps this increasing entropy of the universe from breaking the law of conservation of energy? (Cause, you know, otherwise thermodynamics would be paradoxical, right?) submitted by /u/ILoveSheikyBubba [link] [comments]

Do Aquatic Animals Suffer from Infectious Diseases? Posted: 31 Mar 2018 03:32 PM PDT submitted by /u/mannyrav [link] [comments]

Is there a upper bound on how fast planes can travel safely over long distances? Posted: 31 Mar 2018 06:15 PM PDT If let's say the government wanted build the fastest plane possible, what is the physical limit to how fast a plane can travel over distances of thousands of miles before it becomes too unstable? submitted by /u/JirenTheGay [link] [comments]

Why does temperature in the thermosphere increase with altitude? Posted: 31 Mar 2018 07:54 PM PDT It there another sphere above this? Because the temperature of space is almost zero (K) But the temperature of the highest sphere is increasing? I was looking at temperature against altitude graphs. Thank you submitted by /u/sedg12 [link] [comments]

Why do I feel my phone go off in my pocket when it is neither going off nor in my pocket? Posted: 31 Mar 2018 11:13 AM PDT submitted by /u/Guljiin [link] [comments]

In terms of half life, why do certain particles of an element decay while others don't? Why don't all of them decay? Posted: 31 Mar 2018 10:53 AM PDT For example, for Carbon-14, why do certain particles of that isotope decay and others don't? Aren't they the same? And where do the particles that do decay go? submitted by /u/ItsYoBoiGuzma [link] [comments]

Does looking through the atmosphere refract the image we see similar to looking through the surface of water? Posted: 31 Mar 2018 10:53 AM PDT I don't think so, otherwise a telescope would be a terrible astral positioning system. submitted by /u/Hippiedownsouth16 [link] [comments]

How developed are the chicks inside eggs when they're laid? Posted: 31 Mar 2018 02:06 PM PDT submitted by /u/SaltyYingMain [link] [comments]

What determines how much dark matter a celestial body has? Posted: 31 Mar 2018 04:18 PM PDT I have recently been reading a lot about dark matter and I have been wondering how do scientists determine how much dark matter a celestial body contains. I know that scientist know that dark matter exists because some galaxies spin faster than their gravity holds them together, so there has to be something invisible that is providing an extra force that keeps it together. However, I recently came across this article https://www.independent.co.uk/news/science/distant-galaxy-dark-matter-universe-understanding-theories-wrong-space-yale-a8277951.html that states that there is a galaxy with no dark matter. How are scientists able to calculate whether galaxy contains dark matter? Also, how are they able to avoid the distortion of light that could give them inaccurate results? submitted by /u/toomysxs [link] [comments]

How were cranial nerve functions determined? Posted: 31 Mar 2018 04:12 PM PDT Is this based solely off experiments with rats and case studies from people with very specific cranial nerve injuries? Where do textbooks draw this information from? submitted by /u/kokiloco [link] [comments]

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As a high speed charged particle crosses the event horizon of a black hole, what happens to its magnetic field?

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• As a high speed charged particle crosses the event horizon of a black hole, what happens to its magnetic field?
• What is the matchstick's head made up of ? And how does the chemical reaction proceed in lighting the match ?
• [Astronomy] How busy is a satellite like Hubble? Does it have downtime or is it scheduled 100%?
• The nearest star is a little over 4 light years away. Do we know of any solar systems with neighbors that are very close to each other (relative to our proximity with Proxima Centauri)?
• What exactly makes a standard insulator 'topologically equivalent' to the vacuum?
• Why is the climate of the intermountain west region of America so varied?
• When lightning hits a body of water does it instantly kill the bacteria in the area it hit?
• How are telescopes and space observatories arranged at the L2 Lagrangian point so they do not interfere with each other?
• Why do metabolisms slow down with age?
• Why do astronauts lose bone mass in space?
• How do slushy machines keep the drink in slushy form?
• Is it possible to have an Earth-rise on the moon?
• Suppose we shoot a charged particle down the axis of a solenoid with a magnetic field. It will spiral around the lines of the field, therefore generating its own co-axial magnetic field. Is the new field directed against the solenoid field or along it?
• Why did nuclear tests 'Bluestone' and 'Housatonic' have small fireballs surrounding the main fireballs?
• Why is it that with pixels on a screen the colors red, green, and blue are used rather than the primary red, yellow, and blue?
• Why does the depolarisation of a section of a neurone triggers the depolarisation of the next section?
• Do the jet streams themselves MOVE air masses, or are they just the identifiable boundary between two air masses?
• Why can't we fry stuff in substances like water, as opposed to frying them in oil?
• Does a Body in Rotation Lose Energy Over Time?
• Does a rock being dropped into water make a different sound depending on depth?
• Do astronauts catch colds, or other viruses?
• What determines the brittleness or flexibility of a metal?
• Why can't we see distant stars during the day?

As a high speed charged particle crosses the event horizon of a black hole, what happens to its magnetic field? Posted: 31 Mar 2018 06:09 AM PDT submitted by /u/Aceisking12 [link] [comments]

What is the matchstick's head made up of ? And how does the chemical reaction proceed in lighting the match ? Posted: 31 Mar 2018 06:47 AM PDT submitted by /u/JordaNova73 [link] [comments]

[Astronomy] How busy is a satellite like Hubble? Does it have downtime or is it scheduled 100%? Posted: 30 Mar 2018 01:34 PM PDT Curious how telescopes are utilized and at what capacity, is there downtime or is it constantly being used? Sorry in advance if the formatting is wrong, im on Alien Blue and have no idea how to categorize. submitted by /u/dammitkarissa [link] [comments]

The nearest star is a little over 4 light years away. Do we know of any solar systems with neighbors that are very close to each other (relative to our proximity with Proxima Centauri)? Posted: 30 Mar 2018 04:38 PM PDT submitted by /u/Pokemaster131 [link] [comments]

What exactly makes a standard insulator 'topologically equivalent' to the vacuum? Posted: 30 Mar 2018 11:36 PM PDT I've been trying to better understand topological insulators, and one thing that I really struggle with is the idea that a standard insulator is topologically equivalent to the vacuum. Here is my understanding so far: 2 states are topologically equivalent if we can imagine changing the Hamiltonian from one into the other without removing the band gap. If we consider the Hamiltonian H_k1 of an insulator, there is a way in which we can change the periodic potential from the atoms in the crystal to smoothly transform it into any other insulating H_k2. So for example to change from diamond to Si we could simply space the atoms further apart, and change the potential from each atom. I think that makes sense. In terms of changing it to the vacuum, does this correspond to removing the periodic potential entirely? Because it's my understanding that the band gap arises because of the periodic potential, so removing it would destroy the band gap, meaning we no longer have a topologically equivalent phase. All I have been able to find online are some hand-wavy explanations about Dirac calling the vacuum an insulator, but I'm interested in what we actually change about the Hamiltonian to arrive at the vacuum from an insulating state. submitted by /u/redditferdays [link] [comments]

Why is the climate of the intermountain west region of America so varied? Posted: 31 Mar 2018 01:38 AM PDT If you look at a Köppen climate classification map of the world you'll see that it's mostly constant with large swaths of land and rarely begins to vary. An example of the map having lots of variation within a small concentration I've noticed is in the intermountain west (where I live). I kind of wonder why. I do have one idea. Based upon my fairly standard education of geography my hypothesis would incorporate two things that would cause the intermountain west to have a varied climate. Variation in altitude The intermountain west consisting of largely desert Is my assumption correct or is there way more to it than I know? Thoughts please. submitted by /u/Jack_Jerman [link] [comments]

When lightning hits a body of water does it instantly kill the bacteria in the area it hit? Posted: 30 Mar 2018 01:14 PM PDT submitted by /u/Stephano242 [link] [comments]

How are telescopes and space observatories arranged at the L2 Lagrangian point so they do not interfere with each other? Posted: 30 Mar 2018 03:57 PM PDT submitted by /u/MetalManTO [link] [comments]

Why do metabolisms slow down with age? Posted: 30 Mar 2018 08:47 PM PDT Why could I eat whatever the hell I wanted until 30, and now I have to be selective? submitted by /u/Leeecha [link] [comments]

Why do astronauts lose bone mass in space? Posted: 30 Mar 2018 05:32 PM PDT submitted by /u/arjunks [link] [comments]

How do slushy machines keep the drink in slushy form? Posted: 30 Mar 2018 01:00 PM PDT submitted by /u/itsvic_ [link] [comments]

Is it possible to have an Earth-rise on the moon? Posted: 30 Mar 2018 04:05 PM PDT If you were to stand on the moon, would you be able to witness the the Earth "rise" on the horizon? submitted by /u/wkirisits [link] [comments]

Suppose we shoot a charged particle down the axis of a solenoid with a magnetic field. It will spiral around the lines of the field, therefore generating its own co-axial magnetic field. Is the new field directed against the solenoid field or along it? Posted: 30 Mar 2018 12:42 PM PDT submitted by /u/unia_7 [link] [comments]

Why did nuclear tests 'Bluestone' and 'Housatonic' have small fireballs surrounding the main fireballs? Posted: 30 Mar 2018 07:22 PM PDT Here are the links to what im seeing... 'https://www.youtube.com/watch?v=GLP5EJkCZiQ&ab_channel=SmithWesson' and 'https://www.youtube.com/watch?v=L_jFQw78uzo&ab_channel=LawrenceLivermoreNationalLaboratory' See the small fire balls that surround the main fire ball? Why is that happening ? Second side question is why does it seem that Housatonic last so long? submitted by /u/digitaldulphin [link] [comments]

Why is it that with pixels on a screen the colors red, green, and blue are used rather than the primary red, yellow, and blue? Posted: 30 Mar 2018 05:31 PM PDT submitted by /u/heyitsnahuel [link] [comments]

Why does the depolarisation of a section of a neurone triggers the depolarisation of the next section? Posted: 30 Mar 2018 09:55 PM PDT submitted by /u/mushroom517 [link] [comments]

Do the jet streams themselves MOVE air masses, or are they just the identifiable boundary between two air masses? Posted: 30 Mar 2018 10:55 PM PDT I've tried looking this up everywhere and I've gotten nothing but the same explanation over and over again. No one can actually tell me if jet streams are just an INDICATOR of a boundary between two different air masses, or if they actually push air masses around. submitted by /u/blackjack_oak [link] [comments]

Why can't we fry stuff in substances like water, as opposed to frying them in oil? Posted: 30 Mar 2018 09:06 PM PDT Are there a class of substances which cannot be used to fry? How are these different from oils in this context? submitted by /u/sinister_isomer [link] [comments]

Does a Body in Rotation Lose Energy Over Time? Posted: 30 Mar 2018 06:43 PM PDT So, as is common knowledge from Newton's first law: a body in motion tends to stay in motion until acted upon by an external force. Something that is moving in a linear path continues along a linear path due to inertia until an external force causes it to change in direction or speed (velocity). One thing that has always made me wonder is does a rotating object lose energy over time because of the non-linear motion of its constituent matter? Particles in a rotating mass are constantly changing direction. Changing direction makes me think changing velocity, makes me think changing momentum... I want to think not, because the planets have been rotating for billions of years, but they also have huge moments of inertia due to their immense size and mass. So I don't think that's the entire picture. I am going to finish my BS in mechanical engineering here in about five weeks, and it's been something that I've always thought about from my first physics classes, through dynamics and on. So with that, I'm looking forward to whatever responses and discussion you guys and gals put up! submitted by /u/TankerD18 [link] [comments]

Does a rock being dropped into water make a different sound depending on depth? Posted: 30 Mar 2018 08:48 PM PDT Will a rock dropping into 1 foot depth of water sound different than 4 feet and different at 10? Let's say the rock is 10 inches by 4 inches by 4 inches. submitted by /u/itsgreekpete [link] [comments]

Do astronauts catch colds, or other viruses? Posted: 30 Mar 2018 05:21 PM PDT Do astronauts catch colds? Or is it incredibly sterile in space, keeping them mostly healthy? submitted by /u/nvwino [link] [comments]

What determines the brittleness or flexibility of a metal? Posted: 30 Mar 2018 06:08 PM PDT Why is steel able to bend and return to its previous shape unlike cast iron? submitted by /u/SloppyFlopper [link] [comments]

Why can't we see distant stars during the day? Posted: 31 Mar 2018 02:46 AM PDT submitted by /u/dr_sarcasm_ [link] [comments]

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