AskScience AMA Series: I'm Gary Marcus, co-author of Rebooting AI with Ernest Davis. I work on robots, cognitive development, and AI. Ask me anything!

---

• AskScience AMA Series: I'm Gary Marcus, co-author of Rebooting AI with Ernest Davis. I work on robots, cognitive development, and AI. Ask me anything!
• How does a wave function change after scattering?
• Is Double-Slit Experiment about measurement limitations or nature of the light?
• In saving nearly extinct species, are we dooming them to generations of genetic disorders due to inbreeding?
• Why do water pipes disrupt wireless signals?
• What causes one to vomit during/after strenuous exercise?
• Can we perceive a difference between green light and a mix of yellow and blue light?
• How is the radius of huge stars defined when their average density almost qualifies as a vacuum in other contexts?
• How does the body decide which area of fat to break down for energy during exercise or fasting?
• Could ooblek ever become a gas?
• Could microplastics change how our current era is perpetuated in the coming fossil records of the distant future?
• Why are 12 volts and 5 volts such popular voltages for electronics?
• How do we prove logical independence of propositions from an axiomatic theory?
• Can waste heat be recaptured on the ground from a rocket launch?
• What are some real life examples where we can see conservation of angular momentum ?
• What makes the left column of the periodic table (alkali metals plus hydrogen) so reactive?
• How does the mitocondrial DNA change?
• Can you create a giant microwave using a bunch of WiFi routers?
• Why do deserts only form above and below the equator and on the equator is where the densest rain forrest is, this seems counter intuitive... just look at google maps and you’ll see what I mean?
• What is the relationship between temperature of a liquid and the time it takes for particles within it to settle?
• How is muscle damage for growth (from working out for example) different from just straight up muscle damage?
• What is the diffrence between the Tor browser and a VPN? Could you use Tor instead of a VPN?
• Are prokaryotes capable of lysing foreign cells?

AskScience AMA Series: I'm Gary Marcus, co-author of Rebooting AI with Ernest Davis. I work on robots, cognitive development, and AI. Ask me anything! Posted: 16 Sep 2019 04:00 AM PDT Hi everyone. I'm Gary Marcus, a scientist, best-selling author, professor, and entrepreneur. I am founder and CEO of a Robust.AI with Rodney Brooks and others. I work on robots and AI and am well-known for my skepticism about AI, some of which was featured last week in Wired, The New York Times and Quartz. Along with Ernest Davis, I've written a book called Rebooting AI, all about building machines we can trust and am here to discuss all things artificial intelligence - past, present, and future. Find out more about me and the book at rebooting.ai, garymarcus.com, and on Twitter @garymarcus. For now, ask me anything! Our guest will be available at 2pm ET/11am PT/18 UT submitted by /u/AskScienceModerator [link] [comments]

How does a wave function change after scattering? Posted: 15 Sep 2019 01:33 PM PDT I'm trying to understand scattering theory in QM a little better. What I'm trying to ask here—in more detail than the title—is how can the wave function be calculated after a scattering event? More specifically in the context of Compton and/or Thomson scattering. submitted by /u/Comrade_Pingu_1917 [link] [comments]

Is Double-Slit Experiment about measurement limitations or nature of the light? Posted: 16 Sep 2019 07:02 AM PDT Hi, I was reading about Double-Slit experiment lately and Complementarity. Can we say that: The act of "observing" affects the electrons/photos but this doesn't mean that the reality was not there. We don't have a way to measure our system without changing the information in it. This is still more a measurement limitation for me than explaining the nature of the light. Is Double-Slit Experiment and Complementarity about measurement limitations or nature of the light? submitted by /u/dorostanian [link] [comments]

In saving nearly extinct species, are we dooming them to generations of genetic disorders due to inbreeding? Posted: 16 Sep 2019 05:55 AM PDT submitted by /u/meggie_doodles [link] [comments]

Why do water pipes disrupt wireless signals? Posted: 16 Sep 2019 05:51 AM PDT submitted by /u/Cruplex [link] [comments]

What causes one to vomit during/after strenuous exercise? Posted: 15 Sep 2019 07:27 PM PDT submitted by /u/RFEngineer [link] [comments]

Can we perceive a difference between green light and a mix of yellow and blue light? Posted: 16 Sep 2019 05:38 AM PDT I was thinking about how magenta is made up of red and violet light, and it got me wondering: I assume that a mix of yellow and blue light would be perceived as green, but do our brains interpret that differently than normal green light? ​ Also sorry I'm not sure if this should be flaired physics or neuroscience. submitted by /u/ReynardVulpini [link] [comments]

How is the radius of huge stars defined when their average density almost qualifies as a vacuum in other contexts? Posted: 16 Sep 2019 05:30 AM PDT Stars like UY Scuti have huge radii of multiple hundreds of times the radius of the sun but "only" 5-20 times the mass. Calculating their average density puts them somewhere around ten to a hundred thousand times lower density than air. And that is before considering that most of the mass will be concentrated at the center (I assume?). So why is this considered the radius of the star as opposed to a "cloud of gas illuminated by the star" or so? submitted by /u/Arth_Urdent [link] [comments]

How does the body decide which area of fat to break down for energy during exercise or fasting? Posted: 16 Sep 2019 01:42 AM PDT submitted by /u/longtermbrit [link] [comments]

Could ooblek ever become a gas? Posted: 15 Sep 2019 05:28 PM PDT My 10-year-old cousin and I were watching Youtube videos on phases of matter when he asked me a question I couldn't answer. We searched Google and it didn't help, so I told him I would introduce him to r/askscience. Here he is with his question, thank you for any replies! my question i have to ask you i thought if oobleck can turn into a solid and a liquid it mite be able to turn into gas. Edit: These replies were great, we both learned something new today! He would like to say: thank you for giving me a answer to my question and thanks a lot bye. submitted by /u/osmanfamilyquestions [link] [comments]

Could microplastics change how our current era is perpetuated in the coming fossil records of the distant future? Posted: 16 Sep 2019 05:55 AM PDT There are microplastics everywhere today and in everything and everyone, at least as far as I know. So I wondered what that would mean for the really-really-long run. When human civilization doesn't exist anymore and millions of years in the future scientists discover the remnants of us (along with the plastic everywhere), will they find something different than the fossils we found? My logic is that, since plastic only breaks down into ever smaller pieces, it's eventually gonna end up in very tiny spaces. Could this lead to possibly changing the microstructure of the things that will be fossilized? Like e.g. a fossilized human ribcage or spine with microplastics in their microscopic crevices. submitted by /u/DoggOwO [link] [comments]

Why are 12 volts and 5 volts such popular voltages for electronics? Posted: 15 Sep 2019 05:15 PM PDT Is there something intrinsically convenient about them, or is it just the standard we've been using forever so we keep using it? submitted by /u/sarge21rvb [link] [comments]

How do we prove logical independence of propositions from an axiomatic theory? Posted: 15 Sep 2019 09:20 PM PDT For example, how is it proven that the continuum hypothesis is independent of ZFC? From some reading, I understand that a proposition is independent of an axiomatic system if it can neither be proved nor disproved within that system, and that this means that we can take either the proposition or its negation as an axiom consistently ... or even take other axioms or their negations and then prove that the proposition in question is either true or false depending on whether the axiom or its negation is chosen. But how do we establish that the proposition is altogether independent and definitely cannot be proven or disproven in the system, not just that we haven't found a way to prove or disprove it? The reading I did before asking this question got into more advanced topics like models and forcing, which unfortunately I don't properly understand so it was all a bit over my head. If these ideas are necessary for an answer, would someone be kind enough to explain them in (over)simplified terms if that is at all possible? If it helps, my background is in computer science ... I'm not completely lacking when it comes to formal logic, but I am not a mathematician and I doubt I have a solid understanding of the important concepts here. Thanks in advance! submitted by /u/forte2718 [link] [comments]

Can waste heat be recaptured on the ground from a rocket launch? Posted: 16 Sep 2019 06:34 AM PDT Whether launching from a planet with atmosphere or not, isn't even a little bit of recaptured energy worth it? submitted by /u/StrongCute [link] [comments]

What are some real life examples where we can see conservation of angular momentum ? Posted: 15 Sep 2019 07:23 PM PDT submitted by /u/scorp244 [link] [comments]

What makes the left column of the periodic table (alkali metals plus hydrogen) so reactive? Posted: 15 Sep 2019 04:32 PM PDT submitted by /u/Monarch357 [link] [comments]

How does the mitocondrial DNA change? Posted: 15 Sep 2019 01:35 PM PDT Hi. I have read that by studying the DNA in the mitocondria it's possible to identify when "Eve" lived. I understand that this happens because we receive our mitocondria from our mothers. But since the mitocondria does not mix with the father's genetic material, I don't understand how the differences in the mitocondrial DNA appear. Thanks in advance for your answers. submitted by /u/drlova [link] [comments]

Can you create a giant microwave using a bunch of WiFi routers? Posted: 15 Sep 2019 09:30 PM PDT I've heard that microwaves and WiFi operate on similar frequencies (2.4ghz). If this is true, could you fill a room with thousands of WiFi routers to cook some food? If so, how many routers would it take? submitted by /u/RighteousBruh [link] [comments]

Why do deserts only form above and below the equator and on the equator is where the densest rain forrest is, this seems counter intuitive... just look at google maps and you’ll see what I mean? Posted: 16 Sep 2019 12:43 AM PDT Side note there is no flair for geology questions? Is this because I'm asking this question in the wrong place? submitted by /u/Rev321 [link] [comments]

What is the relationship between temperature of a liquid and the time it takes for particles within it to settle? Posted: 15 Sep 2019 03:51 PM PDT I'm a winemaker and I always assumed that cold water leads to a faster settling of yeast and other murky characters after a fermentation. I only assume this because it seems like less energy means less particle motion and I have always noticed cold bodies of water tend to be clearer than warm ones. Can anyone break this down for me? submitted by /u/Tannerro [link] [comments]

How is muscle damage for growth (from working out for example) different from just straight up muscle damage? Posted: 15 Sep 2019 04:45 PM PDT I've heard many things about growing muscle and building strength, but I hear a lot of things along the lines of "you need to cause some damage to your muscles, so when they rebuild, they'll be stronger". In what way does that kind of muscle damage differ from say, a minor muscle tear, strain, or other injury? submitted by /u/durfynoob [link] [comments]

What is the diffrence between the Tor browser and a VPN? Could you use Tor instead of a VPN? Posted: 15 Sep 2019 11:46 AM PDT submitted by /u/Chimsunn [link] [comments]

Are prokaryotes capable of lysing foreign cells? Posted: 15 Sep 2019 04:19 PM PDT submitted by /u/nbentley0000 [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

If every cell in the human skin is replaced every couple of years, why don't scars heal?

---

• If every cell in the human skin is replaced every couple of years, why don't scars heal?
• What causes the sensation of “wet”?
• During a heart transplant surgery, how long does the patient remain without a heart and how is he kept alive?
• How did scientists know what materials to use for the space suits before ever going into space?
• How long does it generally take to charge the capacitors people use for things like petawatt lasers?
• How was floating point arithmetic handled in older computers/procssors that didn't have FPUs or Math Co-Processors?
• Why does a tomate lose its acidity after being boiled?
• How did eutherian mammals migrate to other continents (specifically North America)?
• How exactly can we tell if other planets have water or water vapor in their atmosphere?
• How does sex-determination work in Cnidaria?
• Since water can boil if you create a vacuum around it. Would it freeze if you applied enough pressure? If not, why not?
• Is glycolysis pressure sensitivite?
• How does a red dwarf star die?
• Air injected directly into your blood stream can be lethal. How does your body not get air inside your blood vessels when you bleed?
• Why does bubbles form when water boils?
• Could you multiply two floating point numbers using a quantum computer in constant time?
• Can any other gasses create "fire" like oxygen?
• The leading causes of death in old age are heart diseases, cancer, chronic lower repository diseases, etc. My question is, how does the death process actually occur?
• How can wild animals drink unclean water and not get violently ill?

If every cell in the human skin is replaced every couple of years, why don't scars heal? Posted: 14 Sep 2019 02:04 PM PDT submitted by /u/piotrekkrzewi [link] [comments]

What causes the sensation of “wet”? Posted: 14 Sep 2019 03:06 PM PDT I was working at my lab in my university, and was still wearing my gloves as I was washing some stuff. As soon as the water hit my hand I felt like I got wet, but when I took off my gloves my hands were completely dry - no water went through the glove to my skin. So this caused me to wonder what exactly happened that the brain translated to "wet"? submitted by /u/pando93 [link] [comments]

During a heart transplant surgery, how long does the patient remain without a heart and how is he kept alive? Posted: 14 Sep 2019 02:21 PM PDT submitted by /u/FluidCardiologist [link] [comments]

How did scientists know what materials to use for the space suits before ever going into space? Posted: 14 Sep 2019 04:01 PM PDT I've been watching a lot of astronaut stuff lately and ive always wondered how they knew exactly what to use for the astronaut suits submitted by /u/Legsofwood [link] [comments]

How long does it generally take to charge the capacitors people use for things like petawatt lasers? Posted: 14 Sep 2019 09:33 AM PDT Physics might not be the right flair, I'm not sure. submitted by /u/MerlinGrandCaster [link] [comments]

How was floating point arithmetic handled in older computers/procssors that didn't have FPUs or Math Co-Processors? Posted: 14 Sep 2019 07:10 PM PDT My guess is that they used some sort of floating point library that mimicked floating point math using the ALU to process the data. If so I would like to find out how these libraries were implemented. submitted by /u/phatboye [link] [comments]

Why does a tomate lose its acidity after being boiled? Posted: 14 Sep 2019 11:26 AM PDT submitted by /u/Hamsterjosef [link] [comments]

How did eutherian mammals migrate to other continents (specifically North America)? Posted: 14 Sep 2019 02:56 PM PDT As far as I am aware, the earliest eutherian mammal fossils were found in China, and date back to the late Jurassic (Juramaia). How did they manage to migrate to the other continents around the world, specifically North America, where it is my understanding that the earliest plesiadapiforms evolved in the late Cretaceous (Purgatorius)? Weren't there oceans in the way to inhibit this kind of migration? submitted by /u/TristanWintle [link] [comments]

How exactly can we tell if other planets have water or water vapor in their atmosphere? Posted: 14 Sep 2019 12:49 PM PDT I understand the basic principle of measure the dip in light waves when a planet passes between its star and us but I don't understand how from that information you can determine if there is any form of water. submitted by /u/sjdne34 [link] [comments]

How does sex-determination work in Cnidaria? Posted: 14 Sep 2019 08:52 AM PDT In mammals, the sex is determined by X and Y chromossomes: XX is female and XY is male. The mother provides one X chromossome, and the father provides a Y or second X. But how does it work in Cnidarians, since some of them are dioecious? submitted by /u/alt8768 [link] [comments]

Since water can boil if you create a vacuum around it. Would it freeze if you applied enough pressure? If not, why not? Posted: 14 Sep 2019 09:50 AM PDT Title says it all. Edit: Will boil, not can. submitted by /u/rudshaug [link] [comments]

Is glycolysis pressure sensitivite? Posted: 14 Sep 2019 08:47 AM PDT Glucose is basically split in half during glycolysis, (forming DHAP and G3P). According to le Chatelier's principle this reaction is pressure sensitive, shifting the equilibrium towards the Educt with rising pressure. Does that mean that deep sea-organisms at the bottom of the mariana trench could have problems with glycolysis? submitted by /u/Jumpmobile [link] [comments]

How does a red dwarf star die? Posted: 14 Sep 2019 12:44 PM PDT I know it lives for trillions of years but how does its final days look like? submitted by /u/ted7843 [link] [comments]

Air injected directly into your blood stream can be lethal. How does your body not get air inside your blood vessels when you bleed? Posted: 14 Sep 2019 02:02 PM PDT submitted by /u/MaximusOfMidnight [link] [comments]

Why does bubbles form when water boils? Posted: 14 Sep 2019 05:30 AM PDT submitted by /u/tuytuy3 [link] [comments]

Could you multiply two floating point numbers using a quantum computer in constant time? Posted: 14 Sep 2019 11:53 AM PDT From what I understand, you can massively parallelize computations on arrays of values using quantum computers, doing some clever math at each end of the array to determine what each state is at any given time. It seems to me that that means you can execute floating point operations very efficiently that way. If not, could you explain what effect quantum computing has on FLOP's as opposed to classical computers? submitted by /u/royisabau5 [link] [comments]

Can any other gasses create "fire" like oxygen? Posted: 14 Sep 2019 02:42 AM PDT On other planets, perhaps, or even experimentally in a laboratory, can any other gas be used in place of oxygen in fires? submitted by /u/teut509 [link] [comments]

The leading causes of death in old age are heart diseases, cancer, chronic lower repository diseases, etc. My question is, how does the death process actually occur? Posted: 14 Sep 2019 12:03 AM PDT I get that your cells lose their ability to function efficiently and your body succumbs from a disease that is directly correlated to "old aging". How does it actually happen, though? Like, do your organs start shutting down first (how exactly does that happen)? Do you slip into a comma/unconsciousness? Specifically with old patients, at what point does the medical staff decide "at X given point, it's in the patients best interest not to resuscitate?" Are there any other interesting aspects that go along with it? I'm very much curious because my grandpa passed away today and I've been thinking about all that nitty gritty stuff. I'm very detail oriented so I just love knowing how and why things happen the way they do. Thank you, in advance! submitted by /u/ChicagoChurro [link] [comments]

How can wild animals drink unclean water and not get violently ill? Posted: 13 Sep 2019 06:28 PM PDT submitted by /u/road_trippin101 [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

Why doesn't our brain go haywire when magnetic flux is present around it?

---

• Why doesn't our brain go haywire when magnetic flux is present around it?
• In stars with enough mass to collapse into a black hole specifically, what causes the "shock wave" that blows apart the rest of the star in a supernova?
• Is capillary action free energy?
• How does a computer keep track of what time it is even when it is turned off and not connected to the internet?
• Do other animals have blood types similar to humans?
• Are there known limits to lossless file compression?

Why doesn't our brain go haywire when magnetic flux is present around it? Posted: 14 Sep 2019 06:18 AM PDT Like when our body goes through MRI , current would arbitrarily be produced in different parts of our brain which should cause random movement of limbs and many such effects but it doesn't why? submitted by /u/mere_nayan [link] [comments]

In stars with enough mass to collapse into a black hole specifically, what causes the "shock wave" that blows apart the rest of the star in a supernova? Posted: 14 Sep 2019 06:24 AM PDT As I understand it in stars that collapse into neutron stars, the "shock wave" is created by the rapid collapse of the stars core into a ball of neutrons and then abruptly stopping once neutron degeneracy pressure prevents the core from collapsing any further into a black hole, and leaving behind a neutron star. In more massive stars, neutron degeneracy pressure is overcome and the core collapses into a black hole, but at what point in this scenario does the shock wave happen and what causes it if there is nothing stopping the collapse? submitted by /u/Pukalo_Reincarnate [link] [comments]

Is capillary action free energy? Posted: 13 Sep 2019 12:13 PM PDT Assuming a substance (example: water in a tree) has risen in height, it now has the potential energy that it didn't have at the bottom of its path. submitted by /u/photopqx [link] [comments]

How does a computer keep track of what time it is even when it is turned off and not connected to the internet? Posted: 14 Sep 2019 06:53 AM PDT submitted by /u/TLK007 [link] [comments]

Do other animals have blood types similar to humans? Posted: 13 Sep 2019 09:32 AM PDT Humans have several different blood types A, B, AB, and O. Do other animals have something similar and does it work the same way as humans? Do some animals need a specific type? submitted by /u/Dr-Pepper-Phd [link] [comments]

Are there known limits to lossless file compression? Posted: 13 Sep 2019 07:58 PM PDT Have we hit the known limits for things like text, image, and video lossless compression? Can those be calculated somehow? submitted by /u/seven_seven [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

Is it possible to get eye damage, or even a sunburn, from the moon's light?

---

• Is it possible to get eye damage, or even a sunburn, from the moon's light?
• Does adding more cameras to a phone actually increase image quality?
• How does the body choose its preferential temperature?
• How dense is the dust in astronomic photos?
• Where do open ocean lighthouses get their power from?
• How can a colonial organism function as a single entity?
• What happens if I push an object faster then the speed of sound in that object?
• Why does my house warm up inside when it's cooler outside?
• How does oxygen and hydrogen combine to form water in space?
• Why are elements like bismuth not unstable if there's such a large discrepancy between their proton and neutron count?
• Would it be possible to have a sustainable energy source using the earths core? Going down 7.5 miles in the 1970s Soviet scientist ran into temperatures of 356 Fahrenheit. Why don’t we try and use it?
• As the Sun cools down, is it possible that Venus would become an exoplanet similar to Earth, while Earth dries out and becomes like Mars?
• Are space and time continuous?
• how does nuclear fission/fusion actually produce gamma rays in terms of moving charges?

Is it possible to get eye damage, or even a sunburn, from the moon's light? Posted: 12 Sep 2019 11:11 PM PDT If moon is just reflecting the Sun's light, then are the UV rays also reflected? And are the UV rays strong enough do damage or affect the human body at all? submitted by /u/JadenZombieZlayer [link] [comments]

Does adding more cameras to a phone actually increase image quality? Posted: 13 Sep 2019 03:42 AM PDT The new iPhone has 3 cameras, but the last one had 2. Does adding another camera do anything or is it a gimmick. submitted by /u/Legate_Invictus [link] [comments]

How does the body choose its preferential temperature? Posted: 13 Sep 2019 04:22 AM PDT Like say the shower is "too hot" for me but is "warm" at best for somebody else. Is it purely our choice as the individual? Or are there factors that impact this "preference"? submitted by /u/battlerazzle01 [link] [comments]

How dense is the dust in astronomic photos? Posted: 13 Sep 2019 03:42 AM PDT Where is the rest of gas in photo's like this APOD? Is it there but we just don't see it and how dense is it e.g. compared to clouds on earth? submitted by /u/die_balsak [link] [comments]

Where do open ocean lighthouses get their power from? Posted: 13 Sep 2019 04:33 AM PDT I know that most lighthouses are automated and electrified by now, and that a lot of them run on solar energy. But are there any other power sources like for example fuel generators? Especially with bigger ones with bunks for a crew to sleep when doing larger maintenance, is there a secondary supply? And what happens in emergencies? Thanks in advance! Edit: I'm talking about offshore lighthouses like Roter Sand or Eddystone Lighthouse. submitted by /u/Kampfkadse [link] [comments]

How can a colonial organism function as a single entity? Posted: 13 Sep 2019 06:04 AM PDT Specifically, the Portuguese man-o-war just blows my mind. It's like a very complex combiner Transformer™. Do the various single species involved have their own lives outside of this colonial existence? Can they be found in any other colonial organisms, or as parasites or symbionts to other more homogeneous (classified as non-colonial) organisms? I don't need an /r/eli5, maybe 10 or 12 would suffice. submitted by /u/cobaltbluetony [link] [comments]

What happens if I push an object faster then the speed of sound in that object? Posted: 13 Sep 2019 01:25 AM PDT So when i start pushing an object (let's say a metal rod) on one end, the other end starts moving with the time delay of the sound needing to travel through that rod, right? If I would accelerate the rod sharp (without buildup) faster than it's internal speed of sound, what would happen? I'm guessing I would crush that object, right? submitted by /u/Flachpfeife [link] [comments]

Why does my house warm up inside when it's cooler outside? Posted: 12 Sep 2019 09:06 PM PDT It's currently low 60s outside. My inside temp was around 73 from when it was warmer today (mid 70s), so I turned the A/C on to get it down to 68. After shutting the air off, the inside temp has gone up a few degrees over the past hour or two. The oven isn't on or anything like that. The heat definitely isn't on. I'm just curious what would make a house actually gain temperature when the outside is cooler. submitted by /u/SillyBreadfruit [link] [comments]

How does oxygen and hydrogen combine to form water in space? Posted: 12 Sep 2019 07:07 PM PDT I understand that heavier elements like oxygen come from supernovas, but once the oxygen and hydrogen are floating around in space, how do they combine to form liquid water/vapor/ice? submitted by /u/eschybach [link] [comments]

Why are elements like bismuth not unstable if there's such a large discrepancy between their proton and neutron count? Posted: 12 Sep 2019 08:00 PM PDT I mean that's more than a 117 neutron difference. How is that not unstable? And I'm not talking about bismuth specifically, I just want to know for all these elements on the whole. submitted by /u/zainchupacabra [link] [comments]

Would it be possible to have a sustainable energy source using the earths core? Going down 7.5 miles in the 1970s Soviet scientist ran into temperatures of 356 Fahrenheit. Why don’t we try and use it? Posted: 12 Sep 2019 01:58 PM PDT submitted by /u/gummybearz4ever [link] [comments]

As the Sun cools down, is it possible that Venus would become an exoplanet similar to Earth, while Earth dries out and becomes like Mars? Posted: 12 Sep 2019 09:48 AM PDT submitted by /u/Mischievous_Canary [link] [comments]

Are space and time continuous? Posted: 12 Sep 2019 08:35 AM PDT We classically speak of space and time as continuous things. Energy, however, is actually quantized. What about space-time? submitted by /u/Shredded_Stallion [link] [comments]

how does nuclear fission/fusion actually produce gamma rays in terms of moving charges? Posted: 12 Sep 2019 11:12 AM PDT i sort of understand how radio (and microwave, etc) signals are generated for AM/FM or telecommunication; by using high frequency alternating current, and a circuit to add the intended data, in a fairly complicated way with antennas which moves the charges and causes them to emit EM radiation with the data, afaik. so basically they use electricity and antennas. But how does gamma radiation get "produced" (or emitted) from the inside of a decaying atom, or one that's just fused into something else? everyone probably knows that everything with heat emits radiation, room temp is IR, and things at say 800 degrees c will emit some visible radiation im guessing because that heat vibrates the atom and thus the electron, and moving charges emit radiation. Would this be the case for gamma radiation? possibly due to how unstable the core is or the immense amount of heat there is, the atom starts vibrating at 1024 hz (or a yottahertz)? submitted by /u/quad5914 [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