Do electrical cables have a jerk effect, similar to a water hose, would the voltage/throughput matter?

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• Do electrical cables have a jerk effect, similar to a water hose, would the voltage/throughput matter?
• AskScience AMA Series: I am Jessica Pierce, a bioethicist who has recently focused my work on animals. AMA!
• What is a Lagrangian? What is the action? Why does the principle of least (stationary) action work?
• Why are the oceans salty and where does the oceans salt com from?
• Bosons have integer spin (such as 1, 2 or 3) whereas fermions have half-integer spin (such as 1/2, -1/2, 3/2, 5/2). In what situation does a boson have for instance spin 3, and a fermion spin 3/2?
• Since neutrinos DO interact with particles if they get lucky, such as atomic nuclei, do neutrinos interact with the strong force, or weak force?
• What does Particle Horizon growth mean to observer?
• Would the impact of a very big meteor like the one causing the dinosaurs extinction be noticeable around the world?
• Does using a graphics card create "wear and tear" on the GPU?
• Is it possible that we could discover some place deeper than Challenger's Deep?
• What prevents carbon from forming four bonds with another carbon atom?
• NASA's Kepler Space Telescope is running out of fuel. What type of fuel does it use and why does it need it?
• Why are observatories on hills and mountains? Does this extra height help?
• How many atoms are being split in an atomic bomb? What would happen if they did a bunch of them (like 5x the amount or more) Would it have any effect on the size of the explosion?
• Can low energy beta radiation emitted from a tritium vial damage plant seeds?
• How long does it take for a new island to get colonised by plant and animal life?
• Do sunspots have antipodal sunspots?
• When transmitting RF, how do electrically long and electrically short lines affect your transmission?
• Is there anything that won't be a solid at absolute zero?

Do electrical cables have a jerk effect, similar to a water hose, would the voltage/throughput matter? Posted: 15 Mar 2018 03:05 PM PDT submitted by /u/ggROer [link] [comments]

AskScience AMA Series: I am Jessica Pierce, a bioethicist who has recently focused my work on animals. AMA! Posted: 16 Mar 2018 04:00 AM PDT Jessica Pierce is a bioethicist who has extensively written about bioethics and animals. Bioethics is a field of research that sits at the crossroads of biomedical sciences and ethics, and bioethicists explore ethical issues in the biomedical sciences. Jessica has authored or co-authored more than 30 articles in peer reviewed journals, and writes for many publications including The New York Times, The Wall Street Journal, and Scientific American. Her recent article, "You Love Dogs? Don't Clone Them" makes a case against cloning pets. Jessica also publishes a blog on Psychology Today. Here is her blog. Her published works include Run, Spot, Run: The Ethics of Keeping Pets which discusses moral ambiguities in pet ownership, The Last Walk: Reflections on Our Pets at the Ends of Their Lives which discusses caring for pets in the end of their lives, and Wild Justice: The Moral Lives of Animals, which discusses prosocial behaviors in pets. More information about Jessica can be found on her website. She'll be joining starting at 3:30 ET (1930 UT)! submitted by /u/AskScienceModerator [link] [comments]

What is a Lagrangian? What is the action? Why does the principle of least (stationary) action work? Posted: 15 Mar 2018 11:02 PM PDT I've gone through the procedure in class. I've gone through it again watching Leonard Susskind's online lectures. Newton's equations pop out... or whatever correct equations we're looking for ... and I have no idea why. Why should this procedure work? Please help me- I feel like I'm a wizard invoking spellcraft. submitted by /u/TwirlySocrates [link] [comments]

Why are the oceans salty and where does the oceans salt com from? Posted: 16 Mar 2018 04:30 AM PDT submitted by /u/Tendarloin [link] [comments]

Bosons have integer spin (such as 1, 2 or 3) whereas fermions have half-integer spin (such as 1/2, -1/2, 3/2, 5/2). In what situation does a boson have for instance spin 3, and a fermion spin 3/2? Posted: 16 Mar 2018 06:28 AM PDT submitted by /u/MarklarE [link] [comments]

Since neutrinos DO interact with particles if they get lucky, such as atomic nuclei, do neutrinos interact with the strong force, or weak force? Posted: 15 Mar 2018 02:24 PM PDT submitted by /u/AflockOfMidgets [link] [comments]

What does Particle Horizon growth mean to observer? Posted: 16 Mar 2018 05:17 AM PDT I've read this title https://www.reddit.com/r/askscience/comments/4msj5s/do_we_suspect_there_are_galaxies_were_already/d3yxrw5/ Still I can't get this: "Note that the particle horizon grows over time. So more and more galaxies become visible until the end of time." So as for now these galaxies out of PH or inside? Yes, there are galaxies will never see at all, specifically those galaxies beyond a co-moving distance of about 65 Gyr. Does it mean we can find galaxy in a distance between 32 (the most distant galaxy we see already) & 47 (PH) Gyr NOW but in a future we would be able to find something closer than 65 Gyr? So 65 Gyr boundary isn't increasing in time? So in infinte perspective PH is limited by 65 Gyr? submitted by /u/stout_sigma_penguin [link] [comments]

Would the impact of a very big meteor like the one causing the dinosaurs extinction be noticeable around the world? Posted: 16 Mar 2018 06:43 AM PDT submitted by /u/Hiro3212 [link] [comments]

Does using a graphics card create "wear and tear" on the GPU? Posted: 15 Mar 2018 08:53 AM PDT Take a graphics card that is run 24/7 for two years as part of a crypto mining operation. Assume that heat is never an issue because it's sufficiently cooled and that its undervolted like most miners do. What kind of "wear and tear" is applied to the GPU and ram chips through constant use? submitted by /u/spooed [link] [comments]

Is it possible that we could discover some place deeper than Challenger's Deep? Posted: 15 Mar 2018 12:43 PM PDT submitted by /u/PolarLight [link] [comments]

What prevents carbon from forming four bonds with another carbon atom? Posted: 15 Mar 2018 11:39 AM PDT submitted by /u/ChemEwannabe97 [link] [comments]

NASA's Kepler Space Telescope is running out of fuel. What type of fuel does it use and why does it need it? Posted: 15 Mar 2018 12:54 PM PDT When I look at picture of Kepler, I can see solar panels. Is the power coming from those panels insufficient to keep the telescope in orbit? Could a future telescope run entirely off of solar or will a fuel source always be required? Relevant article: https://www.nasa.gov/feature/ames/nasa-s-kepler-spacecraft-nearing-the-end-as-fuel-runs-low submitted by /u/banedon [link] [comments]

Why are observatories on hills and mountains? Does this extra height help? Posted: 15 Mar 2018 01:05 PM PDT submitted by /u/UncleTouchyPenis [link] [comments]

How many atoms are being split in an atomic bomb? What would happen if they did a bunch of them (like 5x the amount or more) Would it have any effect on the size of the explosion? Posted: 15 Mar 2018 07:06 PM PDT submitted by /u/jackmoopoo [link] [comments]

Can low energy beta radiation emitted from a tritium vial damage plant seeds? Posted: 15 Mar 2018 06:49 PM PDT submitted by /u/crystalg21 [link] [comments]

How long does it take for a new island to get colonised by plant and animal life? Posted: 15 Mar 2018 10:26 PM PDT This is in the context of either islands formed due to the resurfacing of an older land mass or the eruption of volcanoes. submitted by /u/justfor_hasya [link] [comments]

Do sunspots have antipodal sunspots? Posted: 15 Mar 2018 05:44 PM PDT I just learned that sunspots are a result of magnetism (forgive me if I get the phrasing wrong). This idea came from the fact that celestial bodies, for the most part have magnetic fields. (Assuming that if sunspots do have antipodal sunspots, they don't necessarily have to be equal in size, they merely have to exist) submitted by /u/__Kev__ [link] [comments]

When transmitting RF, how do electrically long and electrically short lines affect your transmission? Posted: 15 Mar 2018 05:26 PM PDT Is compensation needed in either case? Is the 'ideal' line length equal to 1/4λ ? submitted by /u/AbsoluteZero_ [link] [comments]

Is there anything that won't be a solid at absolute zero? Posted: 15 Mar 2018 05:59 PM PDT submitted by /u/intergalactic99 [link] [comments]

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We’ve now discovered that spending a year in space can change your DNA - What does this change about what we thought we knew about DNA?

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• We’ve now discovered that spending a year in space can change your DNA - What does this change about what we thought we knew about DNA?
• At what point in human evolution did we develop a dominant hand? Is this a trait found in other primates as well?
• If someone is paralyzed from the neck down, how can they still breathe or have a heartbeat?
• What is the hiccup actually doing? Is the function trying to accomplish something, or is it just an alert to drink water? Or is it something entirely different?
• In quantum physics if an particle and an anti-particle pair is created, what does energy of each particle equal to? Is it same for both or is energy of normal particle equal to n and the energy of anti-particle equal to -n?
• We recently discovered 'all galaxies rotate once every billion years'. Is this expected, and if not what are the implications?
• How do we know if a particle is elementary?
• If a plant was unable to build a proton gradient in the chloroplast, I know it wouldn't be able to produce ATP. Would it still be able to produce NADPH?
• Why don't the protons in the nucleus repel each other like positive magnets?
• Since particles increase in mass as they approach c, does that mean that mass is relative? Is mass therefore dependent on your frame of reference?
• If an electron is a "elementary" particle, how can it combine with a proton in electron capture during radioactive decay and turn into something else?
• How fast does electricity travel? If I had an extremely long circuit, and turned it on at one end, how long would it take until the person at the other end would see the current flow?
• Will the universe ever stop expanding?
• Have we ever observed an object (such as an asteroid or comet) from another solar system come into our solar system?
• Does static testing of large rocket motors increase Earth's angular velocity, or affect its rotation in any way?
• Is it possible to change the shape of a subatomic particle?
• Why do dispersion affects differents colours in different ways?
• How can smoking cause cancer years after the smoker has quit?
• What's the difference between laser and light?

We’ve now discovered that spending a year in space can change your DNA - What does this change about what we thought we knew about DNA? Posted: 14 Mar 2018 09:43 PM PDT submitted by /u/Aveman201 [link] [comments]

At what point in human evolution did we develop a dominant hand? Is this a trait found in other primates as well? Posted: 14 Mar 2018 03:06 PM PDT submitted by /u/kaett [link] [comments]

If someone is paralyzed from the neck down, how can they still breathe or have a heartbeat? Posted: 15 Mar 2018 07:14 AM PDT If the spinal cord is damaged to the point where a person cannot use their arms or legs, why can their heart an lungs still function? Are they connected to the brain in a different way? submitted by /u/dandashem [link] [comments]

What is the hiccup actually doing? Is the function trying to accomplish something, or is it just an alert to drink water? Or is it something entirely different? Posted: 14 Mar 2018 07:53 PM PDT submitted by /u/netfatality [link] [comments]

In quantum physics if an particle and an anti-particle pair is created, what does energy of each particle equal to? Is it same for both or is energy of normal particle equal to n and the energy of anti-particle equal to -n? Posted: 15 Mar 2018 01:57 AM PDT submitted by /u/dragonkiller_CZ [link] [comments]

We recently discovered 'all galaxies rotate once every billion years'. Is this expected, and if not what are the implications? Posted: 14 Mar 2018 08:48 AM PDT PDF here Article here So it seems that there is a direct correlation between angular velocity and size. I assume this is expected, but I can't wrap my head around how this always yields a near billion year rotation. Is this due to 'dark matter' distribution? Or something else? And was this expected of dark matter? submitted by /u/iam_we [link] [comments]

How do we know if a particle is elementary? Posted: 15 Mar 2018 06:38 AM PDT How are scientists able to determine if a particle cannot be broken down any further? submitted by /u/EarthsFlatYo [link] [comments]

If a plant was unable to build a proton gradient in the chloroplast, I know it wouldn't be able to produce ATP. Would it still be able to produce NADPH? Posted: 15 Mar 2018 06:34 AM PDT submitted by /u/plkmng [link] [comments]

Why don't the protons in the nucleus repel each other like positive magnets? Posted: 15 Mar 2018 05:40 AM PDT submitted by /u/Guanji [link] [comments]

Since particles increase in mass as they approach c, does that mean that mass is relative? Is mass therefore dependent on your frame of reference? Posted: 15 Mar 2018 05:12 AM PDT I recently started reading A Brief History of Time and the chapter on space and time. It's (somewhat) common knowledge that time is relative - time moves slower for someone in orbit than for someone on the surface of the earth. It's hard for me to articulate exactly, but it seems that mass, energy and velocity are all interlinked because of space-time and e=mc2 - does this mean that the mass of an object is dependent on your frame of reference as well? If a particle is accelerated to a velocity where it's mass is increased tenfold, would the rest of planet earth, from the particle's frame of reference, also be increased tenfold? If this is true, it seems strange that if you pick a specific frame of reference, you can accelerate the entire planet earth to near-c velocities, and also increase it's mass tenfold, without spending much energy at all. submitted by /u/Pwntheon [link] [comments]

If an electron is a "elementary" particle, how can it combine with a proton in electron capture during radioactive decay and turn into something else? Posted: 14 Mar 2018 01:09 PM PDT If electrons and quarks are elementary particles, how can they combine to form a different type of quark, e.g. in electron capture of a electron by a proton to form an neutron and an electron neutrino? Is 'elementary' a misnomer as far as irreducibility or unchangeability of so called elementary particles? How does this work in a QFT sense? submitted by /u/danielchorley [link] [comments]

How fast does electricity travel? If I had an extremely long circuit, and turned it on at one end, how long would it take until the person at the other end would see the current flow? Posted: 15 Mar 2018 07:05 AM PDT submitted by /u/hajjr6 [link] [comments]

Will the universe ever stop expanding? Posted: 14 Mar 2018 09:12 PM PDT I don't mean will it ever be so massive that its own gravity will stop it from growing, but rather will it ever run out of energy to create matter? Is there a finite amount of energy the expansion can create or will the universe continue growing forever (discounting apocalypse theories)? submitted by /u/Bletcherino [link] [comments]

Have we ever observed an object (such as an asteroid or comet) from another solar system come into our solar system? Posted: 14 Mar 2018 12:28 PM PDT submitted by /u/ericcee613 [link] [comments]

Does static testing of large rocket motors increase Earth's angular velocity, or affect its rotation in any way? Posted: 14 Mar 2018 06:22 PM PDT submitted by /u/nicm125 [link] [comments]

Is it possible to change the shape of a subatomic particle? Posted: 14 Mar 2018 07:38 PM PDT If you put enough of a certain type of force, could you deform an electron from a sphere into, say, a cube? submitted by /u/B_Wilks [link] [comments]

Why do dispersion affects differents colours in different ways? Posted: 14 Mar 2018 06:14 PM PDT I'm aware that the speed of light on media (and it's refractive index) depends on wavelength, but I can't find any source on why that happens. Shouldn't change in wavelength be compensated by the frequency changing, in a way to keep the speed of light constant (in a same medium)? submitted by /u/MonoTitty [link] [comments]

How can smoking cause cancer years after the smoker has quit? Posted: 14 Mar 2018 03:36 PM PDT I understand the risk of cancer caused by smoking decreases after cessation but never completely, how is this? submitted by /u/whowaitwhat [link] [comments]

What's the difference between laser and light? Posted: 14 Mar 2018 04:48 PM PDT submitted by /u/Mr_CMIYC [link] [comments]

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Stephen Hawking megathread

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• Stephen Hawking megathread
• What experiments are currently being conducted to discover what dark matter/dark energy is?
• Einstein birthday megathread
• How does gravity effect time?
• Is the water used to cool spent nuclear fuel rods radioactively contaminated? If yes, what is happening with it after it gets exchanged with fresh water?
• Ask Anything Wednesday - Engineering, Mathematics, Computer Science
• Why do sperm cells turn white/clear when they die?
• On this the anniversary of its discovery, why is the axis of Uranus rotation tilted sideways, and have there been any exoplanets discovered with the same feature?
• Do shark teeth contain DNA and could Megalodon DNA be recovered?
• It's Said That Fusion Power is Always 30 Years Away, But How Close Have We Actually Come to Fusion Power, and Have There Been any Recent Advances?
• Would passing the speed of light have an “event” like the sonic boom passing the speed of sound?
• Congratulations, /r/AskScience! You are subreddit of the day!
• How do remote car starters and keyless entry work, in terms of sending their signals?
• Why can't we extinguish the Centralia mine fire in Pennsylvania?
• Are phonons a type of electromagnetic wave?
• Is it possible to create a light emitting zener diode (LEZD)? [Engineering]
• Is it possible to create an LC oscillator circuit that emits gamma waves?

Stephen Hawking megathread Posted: 13 Mar 2018 10:03 PM PDT We were sad to learn that noted physicist, cosmologist, and author Stephen Hawking has passed away. In the spirit of AskScience, we will try to answer questions about Stephen Hawking's work and life, so feel free to ask your questions below. Links: BBC NY Times Stephen Hawking Foundation ALS Association Current Einstein megathread for more discussion on general relativity/cosmology. submitted by /u/AskScienceModerator [link] [comments]

What experiments are currently being conducted to discover what dark matter/dark energy is? Posted: 13 Mar 2018 08:38 AM PDT submitted by /u/ReesMedia [link] [comments]

Einstein birthday megathread Posted: 13 Mar 2018 10:03 PM PDT Hi everyone! Today is Albert Einstein's birthday and we're here to answer all of your Einstein-related questions. His most famous achievement is arguably the development of the general relativity in 1915. General relativity is an extremely well-tested theory of gravity, with implications for mechanics, astrophyiscs, cosmology, and more. It has been a hot topic lately with the direct detection of gravitational waves. Besides his work in gravity, Einstein was known for a great many other things. In 1921 he received the Nobel Prize in Physics for the discovery of the photoelectric effect. He also worked on thermodynamic/statistical physics (such as Brownian motion and Bose-Einstein statistics), the famous mass-energy equivalence, atomic physics, quantum mechaincs, and more. Feel free to ask all of your Einstein-related questions! submitted by /u/AskScienceModerator [link] [comments]

How does gravity effect time? Posted: 14 Mar 2018 07:11 AM PDT I once heard that if aliens were looking at the Earth due to how gravity bends time they would be seeing the Earth ruled by dinosaurs, is this true? If it is isnt any planet we view possibly at a totally different place in its own history? submitted by /u/Witherdrake [link] [comments]

Is the water used to cool spent nuclear fuel rods radioactively contaminated? If yes, what is happening with it after it gets exchanged with fresh water? Posted: 13 Mar 2018 10:36 AM PDT I was not able to find any useful resource on this topic, thought someone here could help me :) submitted by /u/brrzam [link] [comments]

Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 14 Mar 2018 08:07 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! submitted by /u/AutoModerator [link] [comments]

Why do sperm cells turn white/clear when they die? Posted: 14 Mar 2018 01:54 AM PDT I was looking at my semen under a microscope and for a couple minutes it was really cool watching all the sperm cells move around like black squiggles. It wasn't long after that when they started dying and when they did, they would gradually slow down and also gradually fade from black to either white or transparent (or translucent really not sure). Why did they change/lose color as they died? submitted by /u/2scared [link] [comments]

On this the anniversary of its discovery, why is the axis of Uranus rotation tilted sideways, and have there been any exoplanets discovered with the same feature? Posted: 13 Mar 2018 07:55 PM PDT submitted by /u/santafesmike [link] [comments]

Do shark teeth contain DNA and could Megalodon DNA be recovered? Posted: 13 Mar 2018 10:03 PM PDT submitted by /u/jns_reddit_already [link] [comments]

It's Said That Fusion Power is Always 30 Years Away, But How Close Have We Actually Come to Fusion Power, and Have There Been any Recent Advances? Posted: 13 Mar 2018 07:23 AM PDT As a followup, what are the biggest hurdles currently in the way of fusion power, and what's being done about them? submitted by /u/ZeroBitsRBX [link] [comments]

Would passing the speed of light have an “event” like the sonic boom passing the speed of sound? Posted: 13 Mar 2018 05:25 PM PDT submitted by /u/JavaPlane [link] [comments]

Congratulations, /r/AskScience! You are subreddit of the day! Posted: 14 Mar 2018 05:01 AM PDT http://www.reddit.com/r/subredditoftheday/comments/84ct9y/march_14th_2018_raskscience_how_does_that_work/ submitted by /u/SROTDroid [link] [comments]

How do remote car starters and keyless entry work, in terms of sending their signals? Posted: 13 Mar 2018 05:27 PM PDT Is it some sort of infrared beam? What's the normal range? submitted by /u/Jay_B_ [link] [comments]

Why can't we extinguish the Centralia mine fire in Pennsylvania? Posted: 13 Mar 2018 02:29 PM PDT It's been burning for 55 years. It has to be a large contributor to current climate change, or is that not true? submitted by /u/Ohm_eye_God [link] [comments]

Are phonons a type of electromagnetic wave? Posted: 13 Mar 2018 09:26 AM PDT My chem prof keeps referring to sound waves/phonons as electromagnetic waves but I always thought they were purely kinetic/due to pressure differential and not electromagnetic. If they are electromagnetic how come they don't travel at the speed of light? If they aren't electromagnetic what are they? submitted by /u/GIAway [link] [comments]

Is it possible to create a light emitting zener diode (LEZD)? [Engineering] Posted: 13 Mar 2018 08:49 AM PDT If so, would it be able to create visible light and then during an avalanche breakdown emit another non-visible wavelength (or maybe vice versa)? submitted by /u/ryanadanderson [link] [comments]

Is it possible to create an LC oscillator circuit that emits gamma waves? Posted: 13 Mar 2018 09:21 AM PDT E.g. If a straight wire has am inductance, albeit a low one, and a capacitance, also low, and you cut a current to it very suddenly, wouldn't it form a LC oscillating circuit for a split second, with a frequency near the range of gamma rays? submitted by /u/arzthaus [link] [comments]

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