How are we able to tell when a sound is near and faint vs far and loud? (How are we able to distinguish distance of sounds)?

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• How are we able to tell when a sound is near and faint vs far and loud? (How are we able to distinguish distance of sounds)?
• How big is the average rock in Saturns rings? And how far apart are they from each other?
• Would there be any benefits to adding extra arms to the LIGO detector ?
• AskScience AMA Series: IAmA scientist looking at microbes living in venomous animals, also Muslim / PoC / 1st gen / queer / wstem / human. AMA!
• What's the difference between virus vectors for gene therapies and creating recombinant DNA from bacteria such as e.coli?
• If you freeze blood, how long will the DNA in the blood maintain its integrity?
• Whenever plastics do degrade, what do they degrade INTO?
• Does WiFi always travel in a straight line?
• Why we still have our magmatic field but mars lost it?
• The ITER fusion experiment is planned to be finished with assembly by 2021 but not start fusing until 2035. Why a 14 year gap?
• Is there a type of rock that can be bent like a metal?
• Nitrous oxide temporarily boosts an internal combustion engine's power. Is there any method which can boost an electric car's power in a similar fashion?
• How does salt "enhance the flavour" of other substances if the salty taste sensation is independent from other taste mechanisms?
• Is it possible for a compound to exist in a state of plasma? In a lab or natural setting?
• Does the observed state of a particle at a given time affect future evolutions in its wave function?
• Why haven't we come up with other ways of generating power instead of turbines?
• For telescopes what are the pro / cons of hexagonal vs circle mirrors ?
• Why do earthquakes hover over certain places for weeks at a time?
• what is the chemical concept behind the disintegration process of medicinal capsules?
• Can Fusion lead to induced Fission?

How are we able to tell when a sound is near and faint vs far and loud? (How are we able to distinguish distance of sounds)? Posted: 11 Mar 2018 05:27 PM PDT I can tell the difference between something being loud and far away and it being close and quiet, even though they have the same "perceived volume." My question is analogous to how we can tell when something is big and far away vs close and small, even though they appear the same size to us. submitted by /u/XGX787 [link] [comments]

How big is the average rock in Saturns rings? And how far apart are they from each other? Posted: 11 Mar 2018 12:17 PM PDT Couldn't find the answer in google so might as well try here. submitted by /u/MaxNickwell [link] [comments]

Would there be any benefits to adding extra arms to the LIGO detector ? Posted: 11 Mar 2018 04:12 PM PDT submitted by /u/arthurc [link] [comments]

AskScience AMA Series: IAmA scientist looking at microbes living in venomous animals, also Muslim / PoC / 1st gen / queer / wstem / human. AMA! Posted: 12 Mar 2018 05:33 AM PDT Hi everyone, I'm here to talk about science and experiences associated with being a scientist from varying backgrounds. You can learn more about me and the different things I do here. I'm here to answer questions with help from Atlas Obscura. Some fun facts about me: (1) I'm working on my PhD at the University of California, Merced. Where is that, is it even a place? Yes, and it's awesome! (2) My PhD thesis question inquires about the interactions between microbes and their venomous hosts, because why not? (3) This is done through the Quantitative & Systems Biology program at UC Merced. What do those words even mean? (4) I grew up in Utah, have lived all over the states, learned a few languages in the process, and now do a combo of diving and computer programming for my work which is all pretty rad. Increasingly stoked about life every day and looking forward to getting to virtually know you all and answering your science-y questions. See you at noon (ET, 16 UT), cheers! submitted by /u/AskScienceModerator [link] [comments]

What's the difference between virus vectors for gene therapies and creating recombinant DNA from bacteria such as e.coli? Posted: 12 Mar 2018 06:04 AM PDT Escherichia coli bacteria can be used to create a wide variety of therpeutic drugs and hormones. Such as human insulin and human growth hormone. Adeno-associated viruses can be used as vectors to deliver repaired strands of DNA to at least inside of cells. There, corrected RNA makes functional proteines wherever possible. However, the size of the adeno-associated viruses limits the size of the transcripted DNA to be inserted. How is not possible to use bacterial recombinant DNA to be inserted and to make corrected proteines inside cells? I ask because I have family member who has a genetic disorder and I hope some day that problem gets solved through something like this. submitted by /u/TheHellWithItToday [link] [comments]

If you freeze blood, how long will the DNA in the blood maintain its integrity? Posted: 11 Mar 2018 11:52 AM PDT submitted by /u/Graychamp [link] [comments]

Whenever plastics do degrade, what do they degrade INTO? Posted: 11 Mar 2018 12:03 PM PDT Since they've discovered that new bacteria that breaks down plastic, what kind of chemicals are left behind? There are thousands of tons of plastic in the oceans alone, and since microplastics are already apparently in 88% of the world's tap water...whatever plastics break down into is going to be absolutely permeating our world. submitted by /u/stinkyfern [link] [comments]

Does WiFi always travel in a straight line? Posted: 11 Mar 2018 09:44 PM PDT Let's say I have a wifi router , and a phone connecting to this wifi - and the phone/router are separated by a glass wall. Will the wifi signal go around the glass wall? Or will it go straight through? submitted by /u/Egliad [link] [comments]

Why we still have our magmatic field but mars lost it? Posted: 12 Mar 2018 05:15 AM PDT Does it have to do with our moon? That's the only major difference I could think about between the two planets magnetic submitted by /u/ants_dentist [link] [comments]

The ITER fusion experiment is planned to be finished with assembly by 2021 but not start fusing until 2035. Why a 14 year gap? Posted: 11 Mar 2018 09:13 AM PDT The ITER wikipedia page lists the following timeline: 2021: Planned: Tokamak assembly completion, torus pumpdown starts. 2025: Planned: Achievement of first plasma. 2035: Planned: Start of deuterium–tritium operation. Why is there such a long gap between starting pumpdown and starting D-T fusion? submitted by /u/jjk [link] [comments]

Is there a type of rock that can be bent like a metal? Posted: 11 Mar 2018 11:40 AM PDT submitted by /u/BensonOMalley [link] [comments]

Nitrous oxide temporarily boosts an internal combustion engine's power. Is there any method which can boost an electric car's power in a similar fashion? Posted: 12 Mar 2018 04:02 AM PDT title submitted by /u/PlanK69 [link] [comments]

How does salt "enhance the flavour" of other substances if the salty taste sensation is independent from other taste mechanisms? Posted: 11 Mar 2018 09:59 AM PDT submitted by /u/superhelical [link] [comments]

Is it possible for a compound to exist in a state of plasma? In a lab or natural setting? Posted: 11 Mar 2018 04:16 PM PDT I'm talking simple stuff like O2 and on up. submitted by /u/IronDBZ [link] [comments]

Does the observed state of a particle at a given time affect future evolutions in its wave function? Posted: 11 Mar 2018 11:07 AM PDT I'm struggling to reconcile the physical and mathematical interpretations of the evolution of quantum particles. If an individual particle can be observed in a random (but predictable) state, does this observed state affect the probability of it being found in a given future state? If so, how can the properties of the wave function evolve deterministically? submitted by /u/sneaky_b3av3r [link] [comments]

Why haven't we come up with other ways of generating power instead of turbines? Posted: 11 Mar 2018 12:48 PM PDT Aside from solar and maybe a few i havent heard of, all the power generation relies on spinning a coil. Heck even nuclear is heating up water to spin a turbine. Why haven't we come up with a new method in all this time? submitted by /u/Veltoc [link] [comments]

For telescopes what are the pro / cons of hexagonal vs circle mirrors ? Posted: 11 Mar 2018 11:20 AM PDT The future 39m European telescope EELT is made with hundreds of 1m hexagonal mirrors. The future 26m Magellan Giant Telescope is made of 7 round Mirror, 8.4m wide. Intuitively I'd say the first option is easier to deal with defects in mirrors and has a better coverage. What are the pro / cons of those two techniques ? submitted by /u/rbag182 [link] [comments]

Why do earthquakes hover over certain places for weeks at a time? Posted: 11 Mar 2018 12:46 PM PDT I check the earthquake maps almost daily, and Puerto Rico and New Guinea have had at least 3 earthquakes within the past day for a trend of 2-3 weeks, usually at least one above magnitude 3. California is starting the said trend too, as the entire fault line has earthquakes above magnitude 3 on it. submitted by /u/41Paddy [link] [comments]

what is the chemical concept behind the disintegration process of medicinal capsules? Posted: 11 Mar 2018 12:22 PM PDT I know that basically there are three types of medicinal capsules: hard gelatinous capsules, softgel capsules and plant derived capsules. I also know that the capsules primarily dissolve due to hydrophobic interactions and change in Ph within varies organs of the body. What i wish to know are: 1) What are the chemical compositions of the various types of capsules? 2) What is the manufacturing process of such capsules? 3) Are there any minor or major drawbacks regarding consumption of capsules? 4) What are the various chemical reactions behind the dissolving/disintegration process of the capsules? THANKS IN ADVANCE TO THOSE READY TO HELP ME UNDERSTAND PS. I need the info to conduct a small seminar within my class submitted by /u/Hrishi1999 [link] [comments]

Can Fusion lead to induced Fission? Posted: 11 Mar 2018 01:16 PM PDT Can the neutron produced from nuclear fusion go on to cause induced fission? and if not why? submitted by /u/ConnorQ838 [link] [comments]

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What would happen if the oxygen content in the atmosphere was slightly higher (within 1 or 2%) would animals be bigger? Would things be more flammable?

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• What would happen if the oxygen content in the atmosphere was slightly higher (within 1 or 2%) would animals be bigger? Would things be more flammable?
• How does "Calorie-in - Calorie-out" and "You only burn fat after x Time of Exercise" fit together?
• When a woman gets a c-section during birth, does labor just turn off?
• Am I using muscles to keep my eyelids open or to keep them closed or both?
• Is there any reason Death Valley happens to be both one of the lowest and hottest points on earth, or is this just a coincidence?
• Can terminal velocity slow down a falling object?
• The colors of the gas giants seem to follow an order. Is this a mere coincidence, or did it happen for a reason?
• Is wood alive? At what point does the tree go from being alive to dead?
• Has every metal's or semi-conductor's fermi surface been experimentally found? If no, which ones are left?
• If the Higgs Boson doesn't give mass to particles (and they simply gain mass through interactions with the Higgs field), then what does the Higgs Boson particle actually do?
• After accounting for supply chain, what's the cleanest power source humans have?
• Do subliminal messages really work?
• How do we know what colors animals can detect?
• The earliest stars were composed of hydrogen and helium, do subsequent stars follow this pattern, going through the periodic table, or does it 'plateau' or do something more fancy at some point?
• Would a Ball of Yarn solve the Coastline Paradox?
• Can microwave irradiation actually change the chemical or physical properties of water? (Link to paper inside.)
• Does a reaction's equilibrium constant change when placed in a high magnetic field?
• How are submarines kept insulated?
• How do phones know their battery percentage?
• How do accents form?
• Why do all molecules vibrate?
• How is there snow on mount everest, if the clouds are below it?

What would happen if the oxygen content in the atmosphere was slightly higher (within 1 or 2%) would animals be bigger? Would things be more flammable? Posted: 11 Mar 2018 04:15 AM PDT submitted by /u/RadioFreeMoscow [link] [comments]

How does "Calorie-in - Calorie-out" and "You only burn fat after x Time of Exercise" fit together? Posted: 11 Mar 2018 04:40 AM PDT I often learned that we only burn fat, and thus loose weight, after 30 mins or so of exercise. (Because before that the body uses some other energy source). Then the same people tell me, that the only thing that counts is the Calorie-in / Calorie-out balance. So at least for my brain these two assumptions won't fit together. If I exercise for just 20 min I might not burn fat but still use Caloriens, so later in the day my body should rely on the fat as an Energy source. So I might not burn fat while exercising but, if "Calorie-in - Calorie-out" is true, I should still loose weight. This question is bugging me for years and all people I talked too, including my Sports Teacher, just keep repeating the thing about the energy-sources, and completely miss my Point. So I hope the question was clear enough and you can finally enlighten me and / or show me where my thinking error lies. submitted by /u/JACKTheHECK [link] [comments]

When a woman gets a c-section during birth, does labor just turn off? Posted: 11 Mar 2018 12:14 AM PST I guess I always imagined labor to be a process that can't stop once it's started, but at what point does your body send the signal to the brain to stop labor when a c section is performed? submitted by /u/thespacecase93 [link] [comments]

Am I using muscles to keep my eyelids open or to keep them closed or both? Posted: 10 Mar 2018 05:43 AM PST submitted by /u/adamtwosleeves [link] [comments]

Is there any reason Death Valley happens to be both one of the lowest and hottest points on earth, or is this just a coincidence? Posted: 11 Mar 2018 04:26 AM PDT submitted by /u/mista_fox [link] [comments]

Can terminal velocity slow down a falling object? Posted: 11 Mar 2018 03:45 AM PDT Everyone on this subreddit knows what terminal velocity is. If you drop an object, it will accelerate (due to gravity) to a point where it can no longer accelerate (due to resistances, such as air resistance), thus reaching its top speed through natural falling. However, what if the object is initially thrown downwards faster than its expected terminal velocity? Would the upwards resistances slow the object until it reduces the velocity to the object's expected terminal velocity, or would it stay at it's thrown velocity? submitted by /u/TheRandomRon [link] [comments]

The colors of the gas giants seem to follow an order. Is this a mere coincidence, or did it happen for a reason? Posted: 10 Mar 2018 12:02 PM PST When looking at the gas giants in the Solar System, they appear to be colored in order, matching an increase in frequency. Jupiter is reddish, Saturn yellow, Uranus a light blue with a hint of green, and Neptune a deep blue. Is there any reason for this, or is it a mere coincidence? I understand that the colors of the planets do change sometimes. Jupiter can become yellower, for example. But it never becomes blue. I did some searching, both around the internet at large and this subreddit in particular, and couldn't find anything commenting on this phenomenon. I hope this question hasn't been asked before. Thanks in advance! submitted by /u/Tabnet [link] [comments]

Is wood alive? At what point does the tree go from being alive to dead? Posted: 10 Mar 2018 07:05 PM PST submitted by /u/SituationCornflakes [link] [comments]

Has every metal's or semi-conductor's fermi surface been experimentally found? If no, which ones are left? Posted: 11 Mar 2018 07:26 AM PDT submitted by /u/ze_astroguy [link] [comments]

If the Higgs Boson doesn't give mass to particles (and they simply gain mass through interactions with the Higgs field), then what does the Higgs Boson particle actually do? Posted: 11 Mar 2018 07:22 AM PDT If that's a confusingly worded question, it's because I'm a little confused myself after watching this PBS SpaceTime video. So I gather that mass, as a property, is just the natural consequence of energy interacting with the Higgs Field - not with the actual Boson itself. Maybe it's more accurate to say that mass appears to exist when particles are slowed down by the Higgs Field? I'm not sure. But that all begs the question of what does the Higgs Boson actually do? Is it a force carrying particle like the other bosons? What force would it even carry? Or am I completely misunderstanding everything about this? (Bonus question - does any of this tie into why the speed of light is related to why or how energy can become mass in the first place? Because that's what I was actually trying to figure out when I went down this rabbit hole.) submitted by /u/graaahh [link] [comments]

After accounting for supply chain, what's the cleanest power source humans have? Posted: 11 Mar 2018 12:23 AM PST I've often heard that nuclear is actually the cleanest and most efficient power source we have after accounting for the supply chain impacts. Like solar's supply chain (getting the minerals from the earth) is really expensive, damages the ecosystem due to mining, and causes tons of pollution. I want to know if this is actually true. or at least be directed to sources that could help me answer this question. Thanks! submitted by /u/klabboy [link] [comments]

Do subliminal messages really work? Posted: 10 Mar 2018 09:11 AM PST I just downloaded a program called "Subliminal Messages." It claims that by flashin text too fast for me to read it can help me do things like quit smoking, have more confidence, etc. Is this true? submitted by /u/memesplaining [link] [comments]

How do we know what colors animals can detect? Posted: 10 Mar 2018 04:55 PM PST submitted by /u/photolouis [link] [comments]

The earliest stars were composed of hydrogen and helium, do subsequent stars follow this pattern, going through the periodic table, or does it 'plateau' or do something more fancy at some point? Posted: 10 Mar 2018 07:34 AM PST submitted by /u/Gytgh [link] [comments]

Would a Ball of Yarn solve the Coastline Paradox? Posted: 11 Mar 2018 12:24 AM PST I just watched the RealLifeLore video about the Coastline Paradox which says coastlines are like fractals. Is the perimeter of a country really infinite / could you hypothetically roll a ball of yarn around a landmass and then measure it to find the true length of coastline? Seems very counterintuitive. submitted by /u/dennyboffa [link] [comments]

Can microwave irradiation actually change the chemical or physical properties of water? (Link to paper inside.) Posted: 10 Mar 2018 07:20 AM PST Unfortunately I got into a debate with a classmate over the whole "microwaved water kills plants" myth. I see that Snopes has debunked it, and the whole idea doesn't fit with my basic knowledge of science. But my classmate came back with the below journal article, and it's way above my pay grade. Is there anything to it? Is this study credible and do its conclusions actually support the assertion that microwaves can change the chemical or physical properties of water? https://www.hindawi.com/journals/aot/2017/5260912/ submitted by /u/dont_gold_me [link] [comments]

Does a reaction's equilibrium constant change when placed in a high magnetic field? Posted: 10 Mar 2018 08:37 AM PST submitted by /u/FragmentOfBrilliance [link] [comments]

How are submarines kept insulated? Posted: 10 Mar 2018 09:30 AM PST In the sense of temperature, not electricity. submitted by /u/FreakOfTheWoods [link] [comments]

How do phones know their battery percentage? Posted: 10 Mar 2018 03:10 PM PST submitted by /u/patwang123 [link] [comments]

How do accents form? Posted: 10 Mar 2018 01:04 PM PST As an example, why did the Colonials from England lose their British accents as time went by if these colonists retained their homogenous way of life. I'm of course talking about a generational change. I don't necessarily mean the original people's accents changed through their lifetimes. submitted by /u/Boba3964 [link] [comments]

Why do all molecules vibrate? Posted: 10 Mar 2018 02:10 PM PST Hi all, just recently started using IR and Raman spectrometer, and I know they receive signal of vibrational energy emitted from molecules of the sample.. However, I cannot get my mind around why they are vibrating in the first place? submitted by /u/ksilek [link] [comments]

How is there snow on mount everest, if the clouds are below it? Posted: 10 Mar 2018 11:33 AM PST submitted by /u/Dts332 [link] [comments]

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Antarctica is defined as a desert, due to lack of precipitation. So where does all the 1-3 mile thick layers of ice and snow come from?

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• Antarctica is defined as a desert, due to lack of precipitation. So where does all the 1-3 mile thick layers of ice and snow come from?
• How does Shazam work?
• How close are lab-grown diamonds to the real ones? At what point is a lab-grown diamond a real diamond?
• How do antlers form branches?
• How much material will the MIT Fusion Reactor use, and how much waste will it produce?
• Why does a sped up recording sound higher pitched than the original recording?
• Can blind people have a photic sneeze reflex?
• When looking in a mirror, do animals understand that they are looking at themselves?
• When making popcorn why some of the seeds never pop?
• Is there a risk of developing fungicide/antifungal resistant fungi in the same way as antibiotic resistance bacteria?
• How can nuclear naval reactors produce almost as much power as nuclear power plants, yet are many times smaller?
• Are there any practical applications for Fluoroantimonic acid?
• How do we know what the Earths core is made of?
• If a celestial object hit the earth, but instead of a direct impact the object ‘grazed’ the planet, is it conceivable this could either accelerate or slow the earth’s rotation, making our days longer or shorter? If it struck asymmetrically to the poles, would our planet ‘wobble’?
• What is the information paradox?
• How do electrons behave at the interface between a superconducting and non-superconducting material?
• If lightning was fired into a vacuum, would it appear straight?
• What does oxygen look like coming out of plants?
• Do we have a man-made satellite with a big elliptical orbit around the earth?
• Has dark energy always existed?
• Why is priapism common in sickle cell anemia?

Antarctica is defined as a desert, due to lack of precipitation. So where does all the 1-3 mile thick layers of ice and snow come from? Posted: 09 Mar 2018 02:37 PM PST submitted by /u/thedeal82 [link] [comments]

How does Shazam work? Posted: 10 Mar 2018 01:46 AM PST submitted by /u/DASAVAGEBOII [link] [comments]

How close are lab-grown diamonds to the real ones? At what point is a lab-grown diamond a real diamond? Posted: 10 Mar 2018 01:14 AM PST I was recently reading an article about De Beers fighting Chinese lab-grown diamonds that are basically indistinguishable from real diamonds. Are the two atomically identical? Without getting too philosophical, is a structurally identical lab-grown diamond a real diamond? submitted by /u/GullibleSpoon16 [link] [comments]

How do antlers form branches? Posted: 09 Mar 2018 03:13 PM PST If I remember correctly, antlers are made of living bone, which means they have the ability to grow specific nodes(?), like on the femur. I also know that plants form shoots and branches via apical meristems and axillary buds. On a cellular level, how do antlers grow in order to form their complex branching structures? submitted by /u/still_not [link] [comments]

How much material will the MIT Fusion Reactor use, and how much waste will it produce? Posted: 09 Mar 2018 03:54 PM PST Science: https://gizmodo.com/mit-receives-millions-to-build-fusion-power-plant-withi-1823644634 How much water and lithium would the described reactor use, and how much helium would be produced? What if this were scaled up to replace all power plants worldwide? Thanks. submitted by /u/username_taken_wtf [link] [comments]

Why does a sped up recording sound higher pitched than the original recording? Posted: 09 Mar 2018 10:05 PM PST submitted by /u/_Not-the-FBI_ [link] [comments]

Can blind people have a photic sneeze reflex? Posted: 09 Mar 2018 08:02 AM PST submitted by /u/Tyber17 [link] [comments]

When looking in a mirror, do animals understand that they are looking at themselves? Posted: 09 Mar 2018 12:29 PM PST submitted by /u/Genesis1522 [link] [comments]

When making popcorn why some of the seeds never pop? Posted: 09 Mar 2018 01:20 PM PST submitted by /u/endym1on [link] [comments]

Is there a risk of developing fungicide/antifungal resistant fungi in the same way as antibiotic resistance bacteria? Posted: 10 Mar 2018 01:05 AM PST In humans when we get fungi infections such as thrush or athletes foot, we treat it with antifungal medicines such as Clotrimazole. Is there a risk that we end up with fungi spores that are resistant to fungicide or antifungal medicines? submitted by /u/wizard710 [link] [comments]

How can nuclear naval reactors produce almost as much power as nuclear power plants, yet are many times smaller? Posted: 09 Mar 2018 11:44 AM PST submitted by /u/GT_Frost [link] [comments]

Are there any practical applications for Fluoroantimonic acid? Posted: 10 Mar 2018 02:06 AM PST Just on a whim I looked up "strongest acid" and this popped up, but under applications it doesn't really say anything, well nothing meaningful to me anyhow. What is this used for? Does it just exist as a chemical novelty? submitted by /u/Isambard_Prince0 [link] [comments]

How do we know what the Earths core is made of? Posted: 09 Mar 2018 02:22 PM PST So this is one of my buddies that I love to death but I want to smack all the time. He's one of those conspiracy people who thinks nasa is fake, ALL pictures from space are fake, Elon Musk didn't launch a rocket with a car on it (despite video evidence before and after the launch) and he thinks scientists a lying about what our Earths core is made of. Good science people help me shut up my friend with facts and infallible logic I beseech you. submitted by /u/MHC001 [link] [comments]

If a celestial object hit the earth, but instead of a direct impact the object ‘grazed’ the planet, is it conceivable this could either accelerate or slow the earth’s rotation, making our days longer or shorter? If it struck asymmetrically to the poles, would our planet ‘wobble’? Posted: 09 Mar 2018 05:37 PM PST Follow up: what changes would we experience if our days were no longer 24 hours? submitted by /u/leoinca [link] [comments]

What is the information paradox? Posted: 09 Mar 2018 11:11 AM PST I heard it mentioned by kurzgesagt in his recent video on string theory but I am wondering if anyone can put it in layman's terms for me. submitted by /u/Cosmonaut17 [link] [comments]

How do electrons behave at the interface between a superconducting and non-superconducting material? Posted: 09 Mar 2018 06:08 PM PST Suppose a superconducting wire is attached to the end of a conventional conductor and the entire set up is cooled enough to reach a superconducting state. If a voltage is applied across the wire, how do electrons interact at the boundary between the superconducting and conventional conducting materials? submitted by /u/FTLSquid [link] [comments]

If lightning was fired into a vacuum, would it appear straight? Posted: 09 Mar 2018 01:35 PM PST Wondering why lightning is always a jagged shape submitted by /u/mottershead [link] [comments]

What does oxygen look like coming out of plants? Posted: 09 Mar 2018 09:42 PM PST If there was a camera that could see the oxygen being produced by plants (like a thermal camera), what would that process look like? Is it excreted out of the leaves? Is CO2 soaked in from the leaved and pumped out of the ground? submitted by /u/DoubleShotBox [link] [comments]

Do we have a man-made satellite with a big elliptical orbit around the earth? Posted: 09 Mar 2018 10:07 AM PST And if we do what would be the purpose of this orbit? submitted by /u/M1664H [link] [comments]

Has dark energy always existed? Posted: 09 Mar 2018 11:15 AM PST (Degree in physics here, but from a long time ago.) Given that the universe expanded very quickly during the big bang, and given that its current expansion appears to be accelerating (hence we believe dark energy must exist) how is it that the universe is currently expanding more slowly than during the big bang? Was there a time during which dark energy didn't exist or didn't have the same effect, allowing the expansion to slow? submitted by /u/bythescruff [link] [comments]

Why is priapism common in sickle cell anemia? Posted: 09 Mar 2018 01:40 PM PST I've heard that priapism is common in sickle cell anemia patients. Why are sickle cell patients predisposed to this? What are the causes? Biologically, what's happening? submitted by /u/uwqymt032413 [link] [comments]

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