Pages

Wednesday, December 4, 2019

Can someone familiar with Oak Island explain why finding sea water beneath a small island is interesting or unusual?

Can someone familiar with Oak Island explain why finding sea water beneath a small island is interesting or unusual?

Can someone familiar with Oak Island explain why finding sea water beneath a small island is interesting or unusual?

Posted: 03 Dec 2019 05:12 PM PST

I understand the concept of ground water. On Oak Island they continually make the distinction that when they dig deep enough sea water fills their bore holes. Is the presence of sea/salt water anomalous when digging on a small island that is surrounded by sea water?

Would typical geology be porous enough to allow salt water to flow/seep beneath the ground? It seems to me that this would not be a strange thing to encounter. But, I am not a geologist.

Not really looking for opinions on the show itself, but a serious answer regarding this specific feature.

​

Thanks!

submitted by /u/Hamm81
[link] [comments]

Do Navy submariners experience effects like seasonal effectiveness disorder and if so what systems are in place to help it?

Posted: 03 Dec 2019 04:23 PM PST

Does stomach acid have an effect on medications taken orally?

Posted: 03 Dec 2019 04:59 PM PST

If i take an antacid before taking a medication ( for example: Vyvanse ), will it increase the absorption? I've heard taking a TUMS antacid would help with THC absorption, so I was wondering if it prevented stomach acids from burning up normal meds.

submitted by /u/ScoopsScoop
[link] [comments]

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology

Posted: 04 Dec 2019 07:08 AM PST

Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology

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]

Does low blood sugar have an effect on blood pressure?

Posted: 03 Dec 2019 05:42 PM PST

I can't seem to find any information on this. I keep getting results like "eating less sugar can lower blood pressure! bwaaa!" It's very annoying. Not talking about any medical conditions.

I just want to know the effect of low blood sugar, specifically from not eating, on blood pressure.

submitted by /u/Throwmeawaybabt
[link] [comments]

The Sahara experiences a shift from savannah to desert and then back again every 20K years or so. Due mainly to the tilt of our axis. Are there any other areas that experience a similar cycle? Are there regions in the Southern Hemisphere that will dry out when the Sahara gets wet again?

Posted: 03 Dec 2019 08:12 AM PST

How does Uranium-238 decay to Lead-206, and why does that tell us the earth is 4.5 billion years old?

Posted: 03 Dec 2019 08:19 PM PST

Due to a work conversation, I started to do research into how it was determined that the earth is 4.5 billion years old. I understand that it goes through 14 decays before it stabilizes as Lead-206. I understand how radioactive decay works. But it's not really my field, and I'm having a hard time wrapping my head around this.

What I've gathered so far is that there's a rock in Australia where they found both Uranium-238 and Lead-206, which tells us that the rock has been around for 4.5 billion years because the half life is 4.5 billion years.

This is where I'm stalled in my information gathering:

Why is some of the Uranium-238 still there? Why isn't that decayed?

Did they find the other decay states?

How do we know the Lead-206 came from Uranium-238 and didn't just exist there as Lead-206 or come from one of the other radioactive isotopes in the decay progression that has a much smaller half-life? Does Lead-206 and all other isotopes along the way only come from Uranium-238?

submitted by /u/eatthedamncakemeow
[link] [comments]

How did scientists back in the olden age established the idea that atoms combine in fixed ratios?

Posted: 03 Dec 2019 06:15 PM PST

How is feline leukemia contagious but human leukemia isnt?

Posted: 03 Dec 2019 09:17 AM PST

I recently learned that feline leukemia is contagious but can't figure out what makes it contagious when the human version isnt.

submitted by /u/waterymilkshake
[link] [comments]

Do we have activated B lymphocytes / plasma cells circulating in our body or do we only have naive ones?

Posted: 03 Dec 2019 06:10 PM PST

If chernobyl has an exclusion zone where nobody can venture, how were remaining reactor cores (1-3) manned until their decomissioning in 2000?

Posted: 03 Dec 2019 09:22 AM PST

Just saw the tv show and understood that close to 300,000 people were evacuated from surrounding areas. In that case, how were the remaining reactors run and manned until 2000? Also, who built the containment dome around reactor 4 if it is so unsafe to venture there?

submitted by /u/siren_37
[link] [comments]

Are wolves in a pack siblings/mates?

Posted: 03 Dec 2019 05:26 PM PST

So several questions, no need to answer them all in one sitting.

Do wolf packs lead to having incestuous relations within the pack?

Or do they breed outside of the pack and split up the offspring?

If so what other animals do this as well?

And finally, is this one of the reasons why wolves can't be domesticated the same way as dogs are?

Thanks in advance for the answers! :)

submitted by /u/datpersondere
[link] [comments]

What if you accidentally drop a nuke?

Posted: 03 Dec 2019 01:45 PM PST

Hey Science, so I can't find a straight forward answer on the internet but if we were transporting nukes on a plane and that plane goes down, is there a giant explosion or is it like a more scientific method of ignition that inhibits it blowing up. Thanks in advance!

submitted by /u/MDCM
[link] [comments]

Do stars normally complete a full rotation around a galaxy?

Posted: 03 Dec 2019 01:21 PM PST

Is star life long enough to do so? If it depends upon the size of galaxy, please consider milkyway.

submitted by /u/M_Ali_Ifti
[link] [comments]

Is it possible to identify biomarkers from a cell sample using gas chromatography (GC)?

Posted: 03 Dec 2019 06:50 PM PST

I'm attempting to identify biomarkers present in mouse myoblasts after a particular intervention. My lab has a GC and I was wondering if the machine has the capacity to identify any potential markers or proteins present in a homogenized sample of my cells.

submitted by /u/mjakian
[link] [comments]

How do mitochondria change their internal proton count to initiate electron chain transfer ?

Posted: 03 Dec 2019 06:51 AM PST

Can someone explain the physics behind powders forming mounds?

Posted: 03 Dec 2019 05:08 PM PST

Why is it that when you drop a handful of sand or salt on a surface, it forms a mound? Can someone describe the physics of what's happening?

submitted by /u/yupoqwert
[link] [comments]

Can other primates get body odour?

Posted: 03 Dec 2019 04:56 PM PST

What does it mean that homosexuality is “just” partially influenced by genetics? How environment shapes sexual orientation(i.e. Homosexual/homophobic parents et cetera). (Of course I’m sorry if it sounds offensive, I’m genuinely interested)

Posted: 03 Dec 2019 01:49 AM PST
vào lúc No comments:

Tuesday, December 3, 2019

Can you cross the beams of a uv laser and an infrared laser to make visible light?

Can you cross the beams of a uv laser and an infrared laser to make visible light?

Can you cross the beams of a uv laser and an infrared laser to make visible light?

Posted: 02 Dec 2019 09:09 PM PST

The underlying reason I was thinking about this is that I vaguely recall when I was taking an acoustics class in college that there was a concept of two soundwaves of different frequencies overlapping and creating another frequency. I am likely getting that part wrong, but whatever the concept was it made me wonder if the same could be true for light.

submitted by /u/SKRuBAUL
[link] [comments]

Is there any molecules is space? I mean in the vacuum part of the space?

Posted: 03 Dec 2019 03:52 AM PST

I've learnt that there's absolutely nothing between us and the moon or basically anything till we reach their atmosphere and I'll be honest I just came up with this question out of the blue right now but I am curious, is there really nothing in space?

submitted by /u/sugondese_beh
[link] [comments]

Can a sha512/md5 hash be reverse engineered that it can produce the original file?

Posted: 03 Dec 2019 05:44 AM PST

Sand that’s beneath the sand at the deepest part of the ocean - is it wet too or is it dry due to some kind of intense pressure barrier?

Posted: 02 Dec 2019 10:33 PM PST

Is 'dopamine fasting' legit? What's the science behind it?

Posted: 03 Dec 2019 04:26 AM PST

"Proponents of dopamine fasting believe that we have become overstimulated by quick 'hits' of dopamine from things like social media, technology and food. They say that by deliberately avoiding these common stimulants – which we see as pleasurable activities – we can decrease the amount of dopamine in our brain. Then, after the fast, when we re-engage with these stimulants, we enjoy them more and our lives feel better."

submitted by /u/chernya
[link] [comments]

With the power of interferometry and the like, is there still any advantage to constructing extremely large single-dish radio telescopes?

Posted: 02 Dec 2019 11:14 PM PST

Science Discussion Series: We are a panel of scientists working on the biology of music and language, here to chat with you about how our brains accomplish the amazing feat of communicating through speech and music! Let’s discuss.

Posted: 03 Dec 2019 08:03 AM PST

Can anyone explain nuclear reactor breeding ratios? And a few other questions.

Posted: 03 Dec 2019 03:05 AM PST

I'm currently working on a mod for a video game (Factorio) which overhauls how nuclear energy in the game works. Partly I'm doing this because the game makers saw fit to make solar power seem like a better option for power at scale, and partly because if I end up being able to get people interested in nuclear energy, then all the better. I want to teach with my mod, but teach to a crowd that is mildly curious and utterly ignorant, so I am starting them off with crayons instead of 3d modeling software.

I've hit something of an understanding wall, where my google-fu and existing knowledge are insufficient to get me over the next hurdle of understanding. My mod is designed to have 3 reactors available for use by the player:

Tier 1: 500MWe (2GWth) LWR. Assume this is one of the very first gen I light water reactors. Inefficient, not many best practices or improvements. Only 25% efficient overall. Huge material cost due to vast amounts of concrete and steel needed to construct the pressure/biological safeties.

Tier 2: 1GWe, 33% overall plant efficiency. This is to be either a Gen III+ or IV sodium fast reactor design. Because of how the game works, much of the beauty of it being a breeder reactor design will have to be moved from the reactor core itself to the fuel reprocessing cycle. I assume oxide or metal fuel. Fundamentally, it doesn't seem like sodium fuel rods are that different from LWR rods, apart from the specifics of engineering them (material choices, shape, pins instead of pellets, separating u235/pu239 from u238 so that you get better breeding, etc).

Tier 3: 1.5GWe, 45% overall efficiency. This is meant to be a thorium fueled molten salt reactor (no I don't think it's the godsend some people think, but I do think it's a decent idea worth exploring, I eagerly await results from China and India). Two-fluid design such that it gets a breeding ratio > 1. This reactor will be the first (in the game) to use a high-temp gas for the turbine loop instead of steam. It will also feature an online fuel reprocessing facility built into the reactor site itself.

I have tier 1 pretty locked down. Documentation about how LWRs work is widely available, even to noobs like me. Tiers 2 and 3 are where I hit a few brick walls. With that, here is my wall of questions. You can pick and choose, answer them a few at at time, however you prefer. I just do better if I list everything I don't know because you can possibly save yourself a lot of time, or point out something I'm not considering. Note: None of these reactors are meant to generate anything but power. No weapons proliferation considerations.

  • In a thermal reactor, U238 seems to release around 1.68 TJ/Kg, and U235 seems to be closer to 80 TJ/Kg. Are these numbers sane / close?

  • In a fast reactor, U238 seems to release around 80.6TJ/Kg, and U235 releases around 79.6TJ/Kg. Sane numbers? For both thermal and fast, I'm happy with a sum energy output of the entire fuel cycle, rather than the energy for just the initial isotope fission.

  • I need some help wrapping my head around how best to represent breeding ratios. If I have a breeding ratio of 1.3, then I generate 30% more Pu239 (assuming u238 is what's being bred) than I burn. But...where does that go? When does it get burned? It's not as though the Pu239 that gets bred magically contains 30% more energy. And, it's not as though the reactor suddenly goes prompt critical because too much Pu239 gets bred (I assume this can happen, but operators and engineers work hard to ensure it doesn't!) Do I represent this with a higher fuel burnup rate between refueling? I'm really scratching my head on what to do with this one.

  • On the topic of burnup rates, it seems like 3% is a decent rate for LWR (sort of a median rate), 15% is decent for sodium fast reactors (upper end of the range), but I can't find anything for molten salt reactors. Some places claim 100% burnup, but that's impossible even with online reprocessing. I assumed 80%, but do you know a better number? Are my LWR/Sodium reactor numbers sane/in the right ballpark?

  • Similar to the breeding ratio above, does the burnup number already factor in any breeding ratio? If so...I haven't done calculus in a decade. I'm not up to solving the differential equation(s) for the relation between burnup and breeding ratio (if there is one). Is there an approximation that would be 'good enough' rather than precise? (think newtonian physics vs general relativity)

  • How much fuel (mass) is loaded in a typical LMR and MSR? I can't seem to find any data. The nearest ton, or even 10-tons would be fine. I try to scale the recipes in-game to take a reasonable amount of material. I can't find any data like I can with LWRs.

Thanks for your time and consideration.

submitted by /u/mytwentythredditid
[link] [comments]

In strong nuclear force interactions, is there attraction or repulsion between a color and the anti-particle of another color?

Posted: 02 Dec 2019 02:27 PM PST

So, say a red quark and an anti-blue quark. Or a green quark and an anti-red. Would there be attraction or repulsion? Or no force at all?

submitted by /u/donovanBast
[link] [comments]

How can you tell composition of minerals?

Posted: 02 Dec 2019 10:15 PM PST

How do people identify minerals just by looking at certain rocks or knowing their source? I guess that comes with experience but do we have a resource where one can reference stuff that they find in natural world to figure out their composition?

submitted by /u/NonElectricalNemesis
[link] [comments]

If we found an organism claimed to be an alien, what would be the biological markers we could check to verify it is extraterrestrial, as opposed to a hitherto unknown terrestrial species?

Posted: 02 Dec 2019 06:13 AM PST

Why does Neurofibromatosis type 1 (NF1) only affect the nervous system and the skin (both deriving from the ectoderm)?

Posted: 03 Dec 2019 01:20 AM PST

Neurofibromin 1 is a protein encoded by the the tumor suppressor gene NF1 which negatively regulates the activity of Ras. Mutation of this gene are associated with type 1 Neurofibromatosis, an autosomal dominant disease. By controlling the expression of neurofibromin 1 protein in the various tissues no particular discrepancies are observed: the neurofibromin 1 protein is expressed approximately on the same quantity in all tissues. Whereas Neurofibromatosis type 1 causes problems such as coffee-milk spots, Lisch's iris nodules, freckles and multiple neurofibromas, how is it possible that only nervous system and the skin are affected?

I tried to consult the scientific literature about it not finding the answer to this question. If someone had the answer could you please also send me the link where it is explained?

submitted by /u/coledoco
[link] [comments]

Since the Earths orbit is elliptical shouldnt the seasons be slightly shorter or longer?

Posted: 02 Dec 2019 11:25 PM PST

Does the elliptical orbit cause a sort of "slingshot" effect that increases acceleration? I've noticed that spring and fall seem to last a bit longer but that could be due to geographical location (Massachusetts)

submitted by /u/lilyungxrist
[link] [comments]

Why doesn't the proton in a hydrogen atom have energy levels like the electron does, or does it?

Posted: 02 Dec 2019 07:39 PM PST

I recently learned about the 3D solution to the Schrodinger equation for hydrogen and it was all focused on the electron. The proton experiences the same potential so it seems like it would have the same solution but with a different mass and radii (distance to the barycenter of the atom?).

submitted by /u/LittleJohnnyNations
[link] [comments]

Why do Mercury and Venus spin slowly, but not the Earth?

Posted: 02 Dec 2019 09:38 PM PST

So, Mercury and Venus have long days and short years because they're close to the sun.

Why don't we have a similarly long day? Or even, why did the ratio of day to year jump to drastically?

submitted by /u/Ormith
[link] [comments]

I have a cube of copper with a wire coming out of both sides. If I connect the cube to a source of power, what pattern would the electrons make in the cube as it flowed across?

Posted: 02 Dec 2019 05:17 PM PST

Is the y male chromosome dominant over x or are they codominant?

Posted: 02 Dec 2019 09:54 AM PST

Does Inverse Compton-Scattering result in reflection and refraction?

Posted: 02 Dec 2019 08:05 PM PST

While thinking about what happens during reflection/refraction I've come across Fermat's principle then Hugyen's principle and some papers. It appears to me that reflection and inverse compton scattering are the same thing. Is this true?

submitted by /u/actinotroch
[link] [comments]

What causes the delay in between contamination by ionizing radiation and the severe symptoms?

Posted: 02 Dec 2019 07:13 PM PST

I was reading about the effects of radiation after rewatching the Chernobyl HBO series was wondering why is there a latency period where you seem fine before the harsher symptoms settle. Couldn't find any satisfactory explanation while searching. Was hoping you could help.

Sorry if this is the wrong flair, wasn't sure which to use...

submitted by /u/JackMcSnek
[link] [comments]

Why do stars expand?

Posted: 02 Dec 2019 08:11 AM PST

So the way I understand it, the size of a star is stable due to an equilibrium between gravity pulling matter in, and nuclear fusion pushing matter out.

I'd like to know:

1) How/why does the star switch fuel source to Helium (when it wasn't being fused before)?

2) Why does this transition result in the star expanding?

3) How is this new process maintained after the expansion, stabilizing into a new steady state of Helium consumption (specifically, how is it stable at a larger radius)?

Also, i feel if i could see a free energy diagram for Hydrogen/ Helium fusions, that'd go a long way to help the explanation. So bonus פpoints if you can link em!

submitted by /u/SymphoDeProggy
[link] [comments]
vào lúc No comments:

Monday, December 2, 2019

Do ants that get lost(accidentally get on my backpack) get adopted by local colonies?

Do ants that get lost(accidentally get on my backpack) get adopted by local colonies?

Do ants that get lost(accidentally get on my backpack) get adopted by local colonies?

Posted: 02 Dec 2019 02:13 AM PST

What part of your brain gets activated when you "talk to yourself"?

Posted: 01 Dec 2019 10:43 AM PST

Why aren't the bows of submarines pointy??

Posted: 01 Dec 2019 03:14 PM PST

Wouldn't a pointed bow cut through the water better?

submitted by /u/unbeatable_101
[link] [comments]

Could there possibly be black holes that formed from collapsing dark matter?

Posted: 01 Dec 2019 07:07 PM PST

If the universe is infused with dark matter, would it not have become "clumpy" due to gravity, just like normal matter did (forming superclusters, galaxies, stars, etc)? And therefore, would there not be black holes that formed as clumps of dark matter collapsed, with very little matter nearby?

submitted by /u/SurprisedPotato
[link] [comments]

Does the brain send signals consistently to keep a muscle in the same state?

Posted: 01 Dec 2019 10:59 AM PST

When I, for example, hold one arm straight to the side, does the brain continuously give the signal to keep the muscle extended or does it just make the arm extend once and it will stay extended until a different signal comes in?

submitted by /u/Cathrandir
[link] [comments]

If The Strait of Gibraltar was dammed up, how long would it be until the Mediterranean dried up?

Posted: 02 Dec 2019 06:20 AM PST

Is remembering a dream the same mechanism as remembering something in real life?

Posted: 01 Dec 2019 11:13 AM PST

For example, why is my memory so bad when it comes to dreams but not as bad with real life experiences?

submitted by /u/cristianthechinch
[link] [comments]

Do some animals get rabies more often?

Posted: 01 Dec 2019 02:03 PM PST

I have read of both raccoons and bats getting rabies a lot. Is there something that makes them more likely to contract rabies? And if so why?

submitted by /u/evahgo
[link] [comments]

How do axes of orbit for planetary bodies and their natural satellites work?

Posted: 02 Dec 2019 05:05 AM PST

​

For the Earth and the Moon, the ratio of mass between the Moon and the Earth is so weighted on Earth's side that the moon goes in orbit around the centre of mass of the Earth. However, suppose that we have two bodies that are similar in mass and size. Is it possible for a configuration to exist where there is an imaginary centre of orbit that lies on a straight line between the two planets' centre of gravity that they both orbit around, on opposite sides?

How would orbits of planets and large satellites work? Is there a reason for our solar system only containing natural satellites that are much lighter than their orbital planet?

submitted by /u/nesnotna
[link] [comments]

Is temperature affected relativistically?

Posted: 01 Dec 2019 03:26 PM PST

So I'm no expert, but I've got an interested amateurs understanding of relativity. But it occurred to me I've no idea how these concepts related to temperature. Temperature is some measure of the speed of particles in a substance, so it seems it must be affected by relativity but how does it work out? Does this mean there's an absolute maximum temperature governed by C, and are there other relativity effects in play too? Or is temperature something defined in a way that makes these questions irrelevant?

submitted by /u/that_nerd_guy
[link] [comments]

Can anyone explain to me, in layman's terms, what is meant by DeSitter, Minkowski, and anti-DeSitter space?

Posted: 02 Dec 2019 01:22 AM PST

I like to watch physics videos and listen to physics audiobooks that aren't necessarily made for physicists, but explain things like CPT symmetry, Bell's inequality, etc. in a way that most people would understand.

Usually I can at least understand the concept without fully understanding the actual equations behind it. But when I try to look up anything about DeSitter, Minkowski, and anti-DeSitter space, all the results are written in equations, and I haven't been able to find a simple explanation of these concepts.

Without dumbing it down too much, can someone help me understand what these terms actually mean?

submitted by /u/cscott024
[link] [comments]

Why don't we define units of length and time in terms of Planck length and Planck time?

Posted: 01 Dec 2019 07:13 AM PST

Just historical reasons?

Technically this is closer to linguistics than physics but it relates more to the practise of physics than to the practise of linguistics so I have it flaired as physics.

submitted by /u/Hyolobrika
[link] [comments]

Why does mustard almost always list its calories as 0 on food labels? Surely it has some calories, yes? If so, what's the real number?

Posted: 01 Dec 2019 03:18 PM PST

How do donated organs remain viable without blood flow?

Posted: 01 Dec 2019 09:45 AM PST

If someone sustains a heart attack, the muscle is damaged b/c of no oxygenated blood flow. When a heart is removed for donation, there's also no blood flow. Icing helps how? What is the window of viability? If the organ is implanted at the far end of the window, is there some substantial damage that might heal?

submitted by /u/NuclearExchange
[link] [comments]

Is there a classification system for biological viruses?

Posted: 01 Dec 2019 02:00 PM PST

I'm making a social media loosely themed around viruses and how they spread from person to person, but I'm kind of stuck. I want to include a system for classifying posts, but I can't think of a name for it. I want the name to be simple and easy to remember, such as subreddits, categories, or areas. "Classifications" would be too complicated, for example.

​ I should probably mention that they won't behave anything like subreddits. That's just an example

​

Thing is, I really want the name of them to be themed around viruses in some way. So is there a simple word used to classify viruses?

submitted by /u/homelesspancake
[link] [comments]

Would be the dying sun ejected material massive enough to allow the formation of a smaller star, a.k.a red dwarf?

Posted: 01 Dec 2019 11:19 AM PST

*Ejecting

submitted by /u/ska4fun
[link] [comments]

Where do dubstep "wub-wub" sounds come from?

Posted: 01 Dec 2019 04:48 PM PST

Could someone with audio engineering background give me a quick rundown on where do these sounds come from? Are they processed samples? Completely synthetic? Is there some magic behind them? Is there a reason why they suddenly emerged a few years back and haven't really been used prior?

I am putting "Computing" as a flair, since I assume it's all digital processing. Physics felt too broad of a category for something dealing purely with sound.

submitted by /u/QubaHQ
[link] [comments]

Does earth’s gravity affect the electromagnetic waves or any other kind of waves (not sea related)?

Posted: 01 Dec 2019 04:38 PM PST

How is the age requirements do dosage for kid drugs determined?

Posted: 01 Dec 2019 04:05 PM PST

Little back story. I have a year and 8 month old boy, he's big for his size, not fat just big. Some Medicines have a 2 years and older requirement and I was wondering how that age was determined? There's no way they just turn 2, some magic happens and medicines are ok for them now.

Stupid iPhone: The title should say "How is the age requirement and dosage for kids drugs determined?"

submitted by /u/thegreatvirginchad
[link] [comments]

Why do some planets adopt elliptical, rather than circular, orbits?

Posted: 01 Dec 2019 02:25 PM PST

Can two unstable particles be in an entangled state that causes their decay to be synchronized?

Posted: 01 Dec 2019 09:44 AM PST

My intuition is that this would require hidden variables to work, since the wave function does not contain enough information to predict when a particle will decay. Beause the decay time is not a property of the wave function there would be no part of the particle's wave function that could be entangled to ensure that they decay at the same time. But I could easily have overlooked something, so I'm asking to be sure.

submitted by /u/amaurea
[link] [comments]

Why exactly does the smoke ring on smoked meats turn red?

Posted: 01 Dec 2019 02:28 AM PST

On smoked meats, the outer ring turns red when it's been smoked. And I was wondering why? The wood isn't red. The other parts of the meat doesn't turn red.

submitted by /u/Conn3ct3d
[link] [comments]
vào lúc No comments:
Subscribe to: Posts (Atom)