AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA!

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• AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA!
• If I shine a white LED light through a prism, would I see a spectrum, or would I see a red line, a green line, and a blue line?
• How do electronics measure battery percentage?
• Why do only a few languages, mostly in southern Africa, have clicking sounds? Why don't more languages have them?
• Today's Nobel prize in Physiology or Medicine is on the role of oxygen in cells. The description says the research is important in aiding injuries and understanding cancer. Can someone explain it in a little more detail? Is it also relevant to aerobic exercise?
• If a grenade exploded in space, what would it look like?
• What is the maximum theoretical speed of Fibre optic?
• What is it about our place in the galaxy which makes it so conducive for the existence of life? What about our place in the greater clusters and beyond?
• How come estrogen can be taken orally, but testosterone must be injected?
• Can Time Crystals accumulate Paizoelectricity in response to mechanical stress like regular crystals?
• Is falling "forever" the same as moving in zero gravity?
• How can a supermassive black hole explode?
• Is it possible that exposing deep-sea creatures to bright LED lights, like we do in wildlife documentaries, could be harmful to them or to their biomes?
• What Causes The Stimulation That Opens Na+ Channels?
• What does undefined mean in the time dilation equation and why do i get it at speed slower than the speed of light?
• It's said that some lobotomies, such as Rosemary Kennedy's, were performed on awake patients under local anaesthetic. What would a person have sensed or felt as a metal instrument was sweeping through their head?
• How does the refractive index of different animals' eyes compare?
• How do trees know it's time to prepare for winter?
• Why isn't the weather visibly changing all the time on Jupiter like it is on Earth? We could never have a great red spot here because it wouldn't last that long, but on Jupiter a storm can last hundreds of years?
• Can plants get the bends?
• Why is there potassium chloride in Doritos?

AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA! Posted: 07 Oct 2019 04:00 AM PDT Hi Reddit, tomorrow is National Hydrogen and Fuel Cell Day, and we hope you'll have a gas! Hydrogen and fuel cells are the perfect partners for clean, fuel-efficient transportation and a secure energy future. Here at Pacific Northwest National Laboratory (PNNL), we have expertise in creating low carbon hydrogen from natural gas, and we have two projects we want to discuss with you. The first is Solar Thermochemical Advanced Reactor System-or STARS, a technology that converts a record-setting 70 percent of solar energy into chemical energy, such as hydrogen. STARS uses thermal energy from the sun to break down natural gas and water into hydrogen and carbon dioxide in a steam methane reforming process. PNNL licensed STARS to a spin-off company, STARS, LLC, who is working with Southern California Gas Company to implement the technology. Read about STARS here: https://www.greencarcongress.com/2018/05/20181518-stars.html. The second project uses a low-emission process to convert natural gas to hydrogen, carbon fiber, and carbon nanotubes. The process creates hydrogen that can be used in fuel cell vehicles and industrial processes, as well as carbon fiber that can be used in applications from medical devices and aerospace structures to building products. The goal of the project is to make hydrogen-fueled cars and trucks cost-competitive with conventional gasoline and diesel vehicles. In addition, this technology would virtually eliminate CO2 emissions from the methane-to-hydrogen process. The technology development and commercialization team includes PNNL; West Virginia University; Southern California Gas Company; and C4-MCP, a Santa Monica-based start-up company. Read more about project here: https://www.greencarcongress.com/2018/01/20180105-socalgas.html. We invite you to look over the information in these links, and we will be back at 11-1 PDT (2-4 ET, UT) to answer your questions. submitted by /u/AskScienceModerator [link] [comments]

If I shine a white LED light through a prism, would I see a spectrum, or would I see a red line, a green line, and a blue line? Posted: 06 Oct 2019 08:46 AM PDT I've been thinking about this since I got some of those little window hangers that put shine little rainbows into your room by refracting dispersing(?) sunlight, but I don't have a white LED light bright enough to actually see anything if I shine it through. submitted by /u/faceplanted [link] [comments]

How do electronics measure battery percentage? Posted: 06 Oct 2019 05:24 PM PDT submitted by /u/octuple8 [link] [comments]

Why do only a few languages, mostly in southern Africa, have clicking sounds? Why don't more languages have them? Posted: 07 Oct 2019 06:56 AM PDT submitted by /u/quirkycurlygirly [link] [comments]

Today's Nobel prize in Physiology or Medicine is on the role of oxygen in cells. The description says the research is important in aiding injuries and understanding cancer. Can someone explain it in a little more detail? Is it also relevant to aerobic exercise? Posted: 07 Oct 2019 05:36 AM PDT submitted by /u/ggrieves [link] [comments]

If a grenade exploded in space, what would it look like? Posted: 06 Oct 2019 02:08 PM PDT submitted by /u/ambellamb [link] [comments]

What is the maximum theoretical speed of Fibre optic? Posted: 07 Oct 2019 06:49 AM PDT Most ISPs have a maximum speed of 1Gbit. I would like to know what the maximum theoretical speed of a fibre optic cable is. I saw different explanations on quora but they lacked sources. On wiki i found the max speed we have accomplished, i am also wondering why we currently have only 1Gbit and not more. What are main limitations currently? submitted by /u/Hundi425 [link] [comments]

What is it about our place in the galaxy which makes it so conducive for the existence of life? What about our place in the greater clusters and beyond? Posted: 06 Oct 2019 10:06 PM PDT submitted by /u/Coolheaded_Convector [link] [comments]

How come estrogen can be taken orally, but testosterone must be injected? Posted: 06 Oct 2019 05:15 PM PDT submitted by /u/DYELFORCEONE [link] [comments]

Can Time Crystals accumulate Paizoelectricity in response to mechanical stress like regular crystals? Posted: 07 Oct 2019 07:30 AM PDT submitted by /u/Legendtamer47 [link] [comments]

Is falling "forever" the same as moving in zero gravity? Posted: 06 Oct 2019 07:58 PM PDT Hi All, I am curious... Is there any difference or similarities between moving in zero gravity (space) and falling forever? I appreciate that the term "falling" implies that you are falling towards a source of gravity, which in itself means the equation for falling and the effects of gravity need to be carried into perpetuity, but I assume an equation exists (disclaimer; I am not a mathematician.)?! So my basic train of thought is, if you were falling into, lets say a hole which in theory had no bottom would you: Experience the same sensation as moving in zero gravity? 1.a. If not, why? 1.b. Would you and your body eventually adjust to the sensation of falling and thus the sensation would be similar to moving in zero gravity? submitted by /u/Electricwebby [link] [comments]

How can a supermassive black hole explode? Posted: 07 Oct 2019 03:25 AM PDT I read an article that talks about the supermassive black hole at the center of our galaxy exploding relatively recently . How does a black hole explode? I don't pretend to know much in this area but I would think the energy needed for anything to escape a black hole would be impossible to reach, thus negating any "explosion" anything from escaping the event horizon. The article says it was "like a lighthouse for 200k light-years into deep space." How? https://www.independent.co.uk/news/science/supermassive-black-hole-milky-way-explosion-sagittarius-a-seyfert-flare-a9145136.html submitted by /u/Darth_Kahuna [link] [comments]

Is it possible that exposing deep-sea creatures to bright LED lights, like we do in wildlife documentaries, could be harmful to them or to their biomes? Posted: 06 Oct 2019 02:10 PM PDT submitted by /u/mr_spod [link] [comments]

What Causes The Stimulation That Opens Na+ Channels? Posted: 06 Oct 2019 03:44 PM PDT In my physiology books, it states, "When a cell is stimulated, depolarisation starts to occure due to some of its voltage-gated Na+ channels being open." I think I understand that the channels are opened because an electrical impulse reaches a certain voltage to open the gate (though, wouldn't this change the electrical gradient?). But also, where does that stimulus come from? Where does it originate? And, again, wouldn't this change the very electrical gradient that would cause the Na to move into the cells in the first place? Or does it merely decrease the gradient, but not enough to stop rapid flow? submitted by /u/lift_fit [link] [comments]

What does undefined mean in the time dilation equation and why do i get it at speed slower than the speed of light? Posted: 06 Oct 2019 06:29 PM PDT I was putting numbers into the equation for time dilation and when I put in .99999999999999999 the speed of light I got undefined. I also get undefined at the speed of light. Does undefined mean that time stops and if so does that mean that time stops before u even reach the speed of light? I was using the desmos science calculator online and put in 10/(1-(. 17 9s)squared) to the power of 1/2 submitted by /u/Bluemag666 [link] [comments]

It's said that some lobotomies, such as Rosemary Kennedy's, were performed on awake patients under local anaesthetic. What would a person have sensed or felt as a metal instrument was sweeping through their head? Posted: 06 Oct 2019 12:44 PM PDT submitted by /u/HeliumPaper [link] [comments]

How does the refractive index of different animals' eyes compare? Posted: 06 Oct 2019 12:39 PM PDT Do aquatic animals have lenses in their eyes with a higher index of refraction for seeing in water compared to animals that live in air? submitted by /u/_Azimith [link] [comments]

How do trees know it's time to prepare for winter? Posted: 06 Oct 2019 12:12 PM PDT While strolling across a yellowish-orangish-reddish park recently, I was wondering how do the trees "know" it's Fall already and it is high time to drop the leaves and prepare for winter? Is it simply connected with the temperature or is the mechanism behind that much more complex? submitted by /u/bartekm3 [link] [comments]

Why isn't the weather visibly changing all the time on Jupiter like it is on Earth? We could never have a great red spot here because it wouldn't last that long, but on Jupiter a storm can last hundreds of years? Posted: 06 Oct 2019 04:10 AM PDT submitted by /u/Fivewater [link] [comments]

Can plants get the bends? Posted: 06 Oct 2019 12:45 PM PDT AFAIK, people and animals get the bends when pressure drops because gases are coming out of the cell. Plants have cell walls that might be able to hold gases better, so would they be better able to cope with several atm pressure swings? submitted by /u/bo_dingles [link] [comments]

Why is there potassium chloride in Doritos? Posted: 06 Oct 2019 06:09 AM PDT So I was eating Doritos the other day and I looked on the ingredients at the back and there was potassium chloride. That is used in some of America's execution lethal injections (I'm British but as far as I know that's the case). So, why are they in my Doritos? submitted by /u/__Nacho__Cheese [link] [comments]

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What do we know about the gut's role in depression, and have there been recent major shifts in understanding?

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• What do we know about the gut's role in depression, and have there been recent major shifts in understanding?
• Does silver turn instantly black when exposed to hydrogen sulfide gas?
• Can gravitation be considered as a dual property of attractive force between masses and distortion of space time,similar to electron's wave- particle duality?
• Since different colour pigments are created by using different elements/minerals, does different hair colours have different chemical composition?
• How were Homo sapiens and Homo neanderthalensis separate species?
• How exactly did we find out about Earth’s internal layers if we never dug that deep?
• Why does the South/Central America region have so many stimulant bearing plants?
• Why does the c in e = mc^2 equal the speed of light?
• Light travels faster in vacuum than through air, so is there a material that could slow light down in a way that we could see it traveling?
• With which species do we share the least amount of genes with?
• Is tobacco smoke uniquely carcinogenic, or only so dangerous due to nicotine's addictiveness?
• Does forward trajectory/momentum decrease the vertical impact on a drop?
• Does higher brain plasticity also mean that you loose neural connections faster?
• How are gorillas so big and strong on a vegetarian diet?
• What do water vapor particles look like on a microscopic level when they are floating in the air after a hot shower?
• Why do rainbows form in such specific halfcircular shapes?
• Why does electrical conductivity increase in a partial vacuum but then drop way off as the vacuum approaches perfect?
• Would planting trees/vegetation in hot environments (deserts) increase the humidity in that area?
• How does oxygen affect the environment? Is there any way is does other than keeps things alive through breathing ?
• Why does the earliest sunset of the year appear ~10 days before the winter solstice itself?
• How do magnetic fields and electric currents interact?
• If sunlight provides energy for plants to grow, does that mean that Earth is continually getting heavier and getting more material?
• How can microwaves heat food through an opaque ceramic lid, but they don't come out through the oven's viewing window and cook my face?
• If spirals are so common throughout the universe, why does the universe itself not seem to spiral?

What do we know about the gut's role in depression, and have there been recent major shifts in understanding? Posted: 05 Oct 2019 06:12 PM PDT See this article: A team of Ontario researchers says their latest study could help pave the way for different approaches to treating depression. The study – completed at McMaster University's Brain-Body Institute and published this week in Scientific Reports – concluded a common class of antidepressants works by stimulating activity in the gut and key nerves connected to it rather than the brain as previously believed. The research focused on Selective Serotonin Reuptake Inhibitors (SSRIs), a type of antidepressant that's known to benefit patients but whose functioning is little understood by the medical community. The McMaster researchers spent nearly a year testing SSRIs on mice in a bid to solve the puzzle. They found that mice taking the medication showed much greater stimulation of neurons in the gut wall, as well as the vagus nerve that connects the gut to the brain. Those benefits disappeared if the vagus nerve was surgically cut. Study co-author Karen-Anne McVey Neufeld says the findings suggest the gut may play a larger role in depression than previously believed and the latest research hints at new treatment possibilities in the future. Edit: See the scientific paper here. submitted by /u/FunUniverse1778 [link] [comments]

Does silver turn instantly black when exposed to hydrogen sulfide gas? Posted: 05 Oct 2019 09:16 AM PDT I was watching an animated show and in the show they show silver turning black instantly when exposed with hydrogen sulfide gas, I tried looking for a video on youtube to see how this would look like in real life but I couldn't find one. submitted by /u/TheWatermelonGuy [link] [comments]

Can gravitation be considered as a dual property of attractive force between masses and distortion of space time,similar to electron's wave- particle duality? Posted: 06 Oct 2019 06:56 AM PDT Gravity as a force of attraction explains physical phenomena on smaller celestial bodies like Earth, while gravity is considered as a curvature of space-time to explain phenomena near gigantic, dense entities like stars,neutron stars, black holes analogous to wave-particle duality of electron. submitted by /u/Imma_not_a_bot [link] [comments]

Since different colour pigments are created by using different elements/minerals, does different hair colours have different chemical composition? Posted: 06 Oct 2019 01:03 AM PDT submitted by /u/Light_bulbnz [link] [comments]

How were Homo sapiens and Homo neanderthalensis separate species? Posted: 05 Oct 2019 05:43 PM PDT Recently, I was discussing the two with a friend, when the question came up: how could they have been separate species if they could reproduce and create viable offspring? I'm aware of the physical differences between the two, but wouldn't they be the same species if they could reproduce? submitted by /u/justalongbowguy [link] [comments]

How exactly did we find out about Earth’s internal layers if we never dug that deep? Posted: 05 Oct 2019 05:19 PM PDT The crust, mantle, and core. submitted by /u/Nightfall90z [link] [comments]

Why does the South/Central America region have so many stimulant bearing plants? Posted: 05 Oct 2019 09:52 AM PDT So cocaine, coffee, cacao, tobacco, Yerba Mate and Guarana are all stimulant bearing plants and all native to South America. Meanwhile Africa and Eurasia has betel nut and tea plants (I might be missing a few?) What evolutionary pressure lead to that concentration of similar molecules in that region? submitted by /u/Budobudo [link] [comments]

Why does the c in e = mc^2 equal the speed of light? Posted: 05 Oct 2019 05:12 PM PDT I've been thinking about it for a while and I can't seem to figure it out. Why does the speed of light have anything to do with this equation. Ofc it's not a coincidence and I just don't understand how mass and energy have anything todo with the speed of light. submitted by /u/DeadExWife [link] [comments]

Light travels faster in vacuum than through air, so is there a material that could slow light down in a way that we could see it traveling? Posted: 05 Oct 2019 12:18 PM PDT So light travels at 299,792 kilometers per second through vacuum and at ~200,000 kilometers per second through air. That's almost 100,000 kmps slower, what's the slowest that light can travel through a material and what material? submitted by /u/Maurotto [link] [comments]

With which species do we share the least amount of genes with? Posted: 05 Oct 2019 05:27 AM PDT EDIT: Thank you everyone for your answers, I appreciate the details but I was also wondering where do plants come to play when it comes to comparing gene similarity? submitted by /u/snoopySuzie [link] [comments]

Is tobacco smoke uniquely carcinogenic, or only so dangerous due to nicotine's addictiveness? Posted: 05 Oct 2019 09:48 AM PDT I feel like I stumble onto a lot of debate on the topic of the dangers of nicotine, cigarettes, and how they compare to the risks of cannabis smoking. The common consensus is that cigarettes are far more likely to give you cancer. But is this true, and why? Does smoke from tobacco contain more carcinogens than smoke from cannabis? Or is the increase in danger due to nicotine's higher addictive potential, resulting in the average cigarette smoker inhaling far more smoke than the average cannabis smoker? submitted by /u/Tyrannosaurus_Alan [link] [comments]

Does forward trajectory/momentum decrease the vertical impact on a drop? Posted: 05 Oct 2019 06:12 PM PDT The context to this question is watching skateboarders drop down huge flights of stairs. I feel if they were dropping straight down, then their landings would be much more violent. I'm not good with dynamics and couldn't think of the math to prove this one way or another. submitted by /u/Yawn_Rape [link] [comments]

Does higher brain plasticity also mean that you loose neural connections faster? Posted: 05 Oct 2019 02:51 PM PDT submitted by /u/XxQuarterizexX [link] [comments]

How are gorillas so big and strong on a vegetarian diet? Posted: 05 Oct 2019 01:06 PM PDT Obviously the general idea is that gorillas are genetically built to be massive and muscular. But it blows me away just how ripped they are. They dwarf other primates. I was just thinking how it's funny how those beasts are herbivores and now I'm wondering how they actually get so big off of an all-plant diet submitted by /u/HighlighterTed [link] [comments]

What do water vapor particles look like on a microscopic level when they are floating in the air after a hot shower? Posted: 05 Oct 2019 05:40 PM PDT I've always wondered what shape or shapes they are in, they look kind of like spheres but it's so hard to get close to a single one and focus on it. There's no way I can put one in my microscope either. Has anyone figured this out? submitted by /u/totallyrandomguy69 [link] [comments]

Why do rainbows form in such specific halfcircular shapes? Posted: 05 Oct 2019 09:03 AM PDT submitted by /u/WhatDoYouFearJohn [link] [comments]

Why does electrical conductivity increase in a partial vacuum but then drop way off as the vacuum approaches perfect? Posted: 05 Oct 2019 10:41 AM PDT submitted by /u/donnie1977 [link] [comments]

Would planting trees/vegetation in hot environments (deserts) increase the humidity in that area? Posted: 05 Oct 2019 02:07 PM PDT I lived in the UAE and I noticed that areas that used to be dry when I was young became more humid. There was also an increase in green vegetation in the form of grass and trees in a lot of the areas where I noticed this change. Would the heat cause the plants to lose moisture only to have it stay in the air as humidity? submitted by /u/teh_fizz [link] [comments]

How does oxygen affect the environment? Is there any way is does other than keeps things alive through breathing ? Posted: 05 Oct 2019 07:08 PM PDT submitted by /u/DoubtRabbit [link] [comments]

Why does the earliest sunset of the year appear ~10 days before the winter solstice itself? Posted: 05 Oct 2019 09:56 AM PDT submitted by /u/KonaAddict [link] [comments]

How do magnetic fields and electric currents interact? Posted: 05 Oct 2019 02:24 PM PDT Electromagnetism (mag field, force, current) Can someone please try to explain the interaction between a magnetic field and an electric current. A ferromagnetic field is essentially unpaired electrons aligning with the same spin, which minimizes it's energy. An electric current is the flow of charge from a high to low "concentration". But how do these two concepts interact? I'm iffy on the right hand rules and the conceptual reasoning behind them. What is happening in a magnetic field that causes a current to flow (counter-clockwise if the magnetic field is flowing toward you)? Why does a current cause a magnetic field? I've read a few sites and saw some videos but still. Thanks a bunch. Also not homework. I'm not in school right now submitted by /u/Content-Creature [link] [comments]

If sunlight provides energy for plants to grow, does that mean that Earth is continually getting heavier and getting more material? Posted: 05 Oct 2019 05:56 PM PDT submitted by /u/Meme_ScoutsOfAmerica [link] [comments]

How can microwaves heat food through an opaque ceramic lid, but they don't come out through the oven's viewing window and cook my face? Posted: 05 Oct 2019 08:50 AM PDT I know the general concept of how microwaves actually heat food (making water molecules jiggle) but I don't understand how they can penetrate some materials and not others. submitted by /u/Its_Claude [link] [comments]

If spirals are so common throughout the universe, why does the universe itself not seem to spiral? Posted: 05 Oct 2019 04:39 PM PDT Hey Reddit, This question kinda comes from nowhere in my brain, but why does the universe itself not spin in a spiral? Why does it simply expand outwards? With spirals being as common as they are, what prevents the universe from following this pattern? submitted by /u/NerdMouse [link] [comments]

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Why are the sizes of some measurements such as gauge, paper size inversely proportional to the numerical assigned to it?

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Why are the sizes of some measurements such as gauge, paper size inversely proportional to the numerical assigned to it? Posted: 04 Oct 2019 11:28 AM PDT Sorry if the question doesn't make sense; I didn't know how to frame it. I wanted to know why some measurements such as gauge, suture material size, paper size decrease with size as their "numerical size" increases. I mean, a 24 Gauge needle is smaller than a 22 Gauge needle. A nylon 10-0 suture is smaller than a nylon 3-0 suture. An A3 paper is smaller than an A4 paper. What is the historical significance of it? Isn't it counter intuitive? Wouldn't it have made more sense to assign the numbers so that a larger number meant a larger size? submitted by /u/HouhoinKyoma [link] [comments]

How did evolution create mirrored body parts through random mutations? Posted: 04 Oct 2019 11:56 AM PDT My left and right arm are virtually identical mirrored of each other, along with my feet and legs and ears etc. How does evolution create so many identically mirrored objects of one another through random mutations? submitted by /u/xl200r [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

How many times has the average drop of water been through an animal kidney in the history of Earth?

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• How many times has the average drop of water been through an animal kidney in the history of Earth?
• Coming from a 3rd year electrical engineering students perspective, I know how static electricity works but what I don't know is why it works essentially. What I'm asking is; why do some materials hold a better charge than others and while one material likes to gain a negative charge, Visa versa?
• When discussing properties of sound, is attack and decay included in the construct of timbre/quality?
• Can stress and anxiety increase body temperature?
• Does violent media affect how people affect how people react to real world violence?
• How, exactly, is electricity and magnetism related?
• Chemical analysis before 1973?
• Where does the flap-flap sound of a helicopter come from? Do all helicopters sound the same?
• How did we measure the mass of the Dwarf Planet Eris?
• How does a cell check its DNA during cell checkpoints? What DNA does the cell check its own DNA against?
• Where does the energy in synchrotron radiation come from?
• How evenly does CO2 spread out in the atmosphere, and are there regions were the level is a a significantly higher levels?
• How earthquakes affect rivers, how drastic can be the change in the flow and the structure of a river ? Are there some interesting examples recorded of river changing after an earthquake? Or maybe there are examples of a river going of its original course for large distances after an earthquake?
• If matter cannot be crated or destroyed, than how does anything exist?
• How do we know how many isotopes exist in the universe for an element, and their percentages, to determine the atomic mass? As we discover new isotopes, does a printed periodic table become obsolete because that element will have a new atomic mass?
• Why do prunes have more sorbitol than plums?
• Is the olfactory system more active in a monkey than in a human, relatively speaking?
• Why can't we solve for the wave function of another element than hydrogen?
• How exactly does a medically induced coma aid recovery?
• If albino plants usually die from lack of chlorophyll, then how does the Caladium plant survive with white leaves?

How many times has the average drop of water been through an animal kidney in the history of Earth? Posted: 04 Oct 2019 03:58 AM PDT submitted by /u/Grep2grok [link] [comments]

Coming from a 3rd year electrical engineering students perspective, I know how static electricity works but what I don't know is why it works essentially. What I'm asking is; why do some materials hold a better charge than others and while one material likes to gain a negative charge, Visa versa? Posted: 03 Oct 2019 08:51 AM PDT By Visa versa I mean another likes to give away electrons. I figure it has to do with surface area in some instances like with fur or styrofoam but with glass and other non conductors that can have the same surface area I don't know where these extra electrons or holes are stored. submitted by /u/DampestFire [link] [comments]

When discussing properties of sound, is attack and decay included in the construct of timbre/quality? Posted: 04 Oct 2019 05:19 AM PDT submitted by /u/Teledogkun [link] [comments]

Can stress and anxiety increase body temperature? Posted: 04 Oct 2019 02:56 AM PDT submitted by /u/Magnicello [link] [comments]

Does violent media affect how people affect how people react to real world violence? Posted: 04 Oct 2019 02:32 AM PDT Basically what the title says. Have there been any studies on how media affects how people's reactions when exposed to real world violence/combat situations/any other kind of traumatic experience that they could have been exposed to in the aforementioned media? submitted by /u/frogglesmash [link] [comments]

How, exactly, is electricity and magnetism related? Posted: 03 Oct 2019 09:37 PM PDT We'r cal it electromagnetism, right? So through what medium are they related? Electric current creates a magnetic field around it right? How? Why? submitted by /u/Stack3 [link] [comments]

Chemical analysis before 1973? Posted: 04 Oct 2019 05:11 AM PDT Hey all, I've been doing some reading on the Ames test that popped up in the 1970s, but can't seem to find any information as to how chemicals were tested before that. Also, in the research articles I've looked at they've mentioned that 'several' bacterium are used in Ames testing, but I haven't found anything other than E. Coli and Salmonella. Any information on either of these two topics would be greatly appreciated. submitted by /u/Salt_Saint [link] [comments]

Where does the flap-flap sound of a helicopter come from? Do all helicopters sound the same? Posted: 04 Oct 2019 04:21 AM PDT Sometimes helicopters have a rhythmic sound sometimes a swooshing. Where does the rhythm come from? It seems to be way slower than the rotation speed. What causes the sounds? Are there more silent helicopters? submitted by /u/sandinhead [link] [comments]

How did we measure the mass of the Dwarf Planet Eris? Posted: 03 Oct 2019 09:54 PM PDT I found online that we were able to discern the mass based off of it's moon Dysnomia's Orbit, but how do we get a measurement within a 2% margin of error without either flying out a probe to test, or knowing the mass of one of the celestial bodies? submitted by /u/Xygore [link] [comments]

How does a cell check its DNA during cell checkpoints? What DNA does the cell check its own DNA against? Posted: 04 Oct 2019 05:26 AM PDT Does a cell check its own DNA against that of its neighbors? Or perhaps the cell that it was made from? submitted by /u/runawayhitchhiker [link] [comments]

Where does the energy in synchrotron radiation come from? Posted: 03 Oct 2019 09:43 PM PDT If I have a permanent magnet and a beam of electrons passing by it the electrons will be accelerated and thus emit radiation. This radiation obviously contains energy so some other part of the system must lose energy. But the electrons are accelerated radially so they shouldn't lose any kinetic energy. Does it come from the magnet? If so, how? Would it get weaker over time? submitted by /u/Shikor806 [link] [comments]

How evenly does CO2 spread out in the atmosphere, and are there regions were the level is a a significantly higher levels? Posted: 04 Oct 2019 05:10 AM PDT submitted by /u/SgtExo [link] [comments]

How earthquakes affect rivers, how drastic can be the change in the flow and the structure of a river ? Are there some interesting examples recorded of river changing after an earthquake? Or maybe there are examples of a river going of its original course for large distances after an earthquake? Posted: 04 Oct 2019 04:27 AM PDT submitted by /u/MikeBogler [link] [comments]

If matter cannot be crated or destroyed, than how does anything exist? Posted: 03 Oct 2019 09:54 PM PDT Sorry if this is a stupid question, it's just really confusing me. submitted by /u/CobaltSurvivor [link] [comments]

How do we know how many isotopes exist in the universe for an element, and their percentages, to determine the atomic mass? As we discover new isotopes, does a printed periodic table become obsolete because that element will have a new atomic mass? Posted: 03 Oct 2019 05:06 PM PDT I've seen two chemistry teachers explain atomic mass by saying it's a calculated average of all the isotopes in the universe and their available percentages. What I can't figure out, even by Googling, is how we know the specific percentages of abundance for these isotopes? For example, Chlorine, has a natural abundance of 76% Cl-35, 24% Cl-37, and trace amounts of Cl-36. How'd we get those percentages? submitted by /u/randomaltname [link] [comments]

Why do prunes have more sorbitol than plums? Posted: 03 Oct 2019 05:59 PM PDT submitted by /u/MajorDisapointment [link] [comments]

Is the olfactory system more active in a monkey than in a human, relatively speaking? Posted: 04 Oct 2019 01:08 AM PDT I've learned that a larger percentage of the brain in monkeys - and I guess, other "less complex animals" (I dislike that term) as well - is dedicated to the sense of smelling, than in humans. Hence my question, title. Is this a reasonable conclusion to draw? Thanks. submitted by /u/Teledogkun [link] [comments]

Why can't we solve for the wave function of another element than hydrogen? Posted: 03 Oct 2019 01:44 PM PDT submitted by /u/DreamDeckUp [link] [comments]

How exactly does a medically induced coma aid recovery? Posted: 02 Oct 2019 09:03 PM PDT Assuming it's just to let the body 'heal itself', why not just go with standard bed rest? Or is it that it allows for more procedures to be done without weeks of bedrest between them? submitted by /u/CheshireCharade [link] [comments]

If albino plants usually die from lack of chlorophyll, then how does the Caladium plant survive with white leaves? Posted: 02 Oct 2019 09:31 PM PDT submitted by /u/cosmic_dragon [link] [comments]

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