Why do we lose the desire to eat while we are sick? (Ex. when having a cold, I lose the desire to eat)

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• Why do we lose the desire to eat while we are sick? (Ex. when having a cold, I lose the desire to eat)
• Why does the sun's magnetic field keep changing every 11 years?
• Can non-planetary celestial objects have ring systems?
• Is the neutral pion an eigenstate of mass?
• Does sexual arousal have any effect on kidneys function and urine?
• If solitary hunters such as raptors, ferrets, minks, and cormorants can be trained to cooperate with humans to catch prey, does this mean that pack hunting is an entirely nurture acquired trait?
• How does a transistor work as an amplifier?
• Do woodpeckers lose brain cells?
• Is it possible to get a set of 4 points that contains 2 lines in the Fano Plane?
• Would we still need Hazmat suits to cross an area effected by an airburst nuke or could we cross relatively unaffected?
• What is light bar testing in the NASA sun probe?
• I've often read that the forests of New England before colonization were open and park-like without underbrush and that this was because of Native Americans regularly setting fires to clear the underbrush. Is this true or was it some other set of factors that led to the park-like appearance?
• What causes the ringing sensation you get in your ears after attending a loud concert? Why can it last for so long?
• Why is the sea so clear in some places and so murky in others?
• Do babies sleep in the womb?
• Why do ripples form when you stretch some fabrics?
• Is the DNA of offspring a completely random mix of their two parents' DNA? Or are there selection mechanisms at play during gestation?
• Does a recipient of a bone marrow transplant develop allergies that copy the donor?
• If modern humans are the result of Neanderthals breeding with another species of human, why do we refer to them as separate species?

Why do we lose the desire to eat while we are sick? (Ex. when having a cold, I lose the desire to eat) Posted: 20 Jul 2018 01:17 PM PDT submitted by /u/Equ1no0x [link] [comments]

Why does the sun's magnetic field keep changing every 11 years? Posted: 20 Jul 2018 08:14 AM PDT submitted by /u/excitedneutrino [link] [comments]

Can non-planetary celestial objects have ring systems? Posted: 21 Jul 2018 04:14 AM PDT Would it be possible for a star, moon or black hole, for example, to have a ring system as prominent as the ones that planets can have? If so, how would the characteristics of these ring systems differ from the ones of planets? submitted by /u/past-the-present [link] [comments]

Is the neutral pion an eigenstate of mass? Posted: 21 Jul 2018 04:47 AM PDT So the neutral pion is written as (u anti-u minus d anti-d) (2)-1/2. So what happens when we measure the mass of the pion? Since the mass of up and down quarks is different (and antiparticles are assumed of equal mass), will we get two different values when measuring the mass of states like the neutral pion? submitted by /u/Physix_R_Cool [link] [comments]

Does sexual arousal have any effect on kidneys function and urine? Posted: 20 Jul 2018 04:45 PM PDT I as a guy everytime I have an orgasm I feel a strong urge to pee almost right after, even If I emptied my bladder right before and I haven't drank anything in a while, During sex after my SO has an orgasm she always goes to pee right after it happens, and tells me that she just can't help it, I know how the blood filtration and kidneys mechanics work, but I'm wondering if being in a state of arousal (or orgasm maybe) may make urine production quicker or something like that And if it does I'd like to ask how, why and since what age does it happen? submitted by /u/Damnboi1221 [link] [comments]

If solitary hunters such as raptors, ferrets, minks, and cormorants can be trained to cooperate with humans to catch prey, does this mean that pack hunting is an entirely nurture acquired trait? Posted: 20 Jul 2018 04:52 PM PDT submitted by /u/BabylonBash [link] [comments]

How does a transistor work as an amplifier? Posted: 20 Jul 2018 04:20 PM PDT submitted by /u/skywind123456 [link] [comments]

Do woodpeckers lose brain cells? Posted: 20 Jul 2018 03:53 PM PDT With all that knocking their beaks against trees do woodpeckers slowly lose brain cells? Is there a noticeable decline in brain functionality as they get older? Edit: with sustained pecking do they cause a concussion? submitted by /u/MisterCBax [link] [comments]

Is it possible to get a set of 4 points that contains 2 lines in the Fano Plane? Posted: 20 Jul 2018 04:10 PM PDT I have been reading "How Not to be Wrong - The Power of Mathematical Thinking" by Jordan Ellenberg. I got to the point in the book where he talks about EEC memory in computers and how it relates to the Fano Plane, he says in a foot note at the bottom of the page. If you haven't thought about this before, you have probably found that the argument in this paragraph is hard to follow. The reason its hard to follow the reason you can't get an argument of this kind into your head by sitting and reading about it - you have to get a pen out and try to write down a set of four points which contains two different lines, and then fail to do that, and then understand why you failed However by looking at the Fano Plane i see that points 6,7,1,3 (3 points on the side of the triangle and one in the center) are 4 points with 2 different lines, what am i not understanding here? submitted by /u/Barry_Benson [link] [comments]

Would we still need Hazmat suits to cross an area effected by an airburst nuke or could we cross relatively unaffected? Posted: 20 Jul 2018 03:43 PM PDT submitted by /u/Haruhi_is_Waifu [link] [comments]

What is light bar testing in the NASA sun probe? Posted: 21 Jul 2018 01:02 AM PDT Reuter's article with picture of light bar testing: https://www.reuters.com/article/us-space-sun/nasa-prepares-to-fly-probe-into-suns-scorching-atmosphere-idUSKBN1KA2SL?feedType=RSS&feedName=scienceNews&utm_source=reddit.com Video of NASA performing light bar testing: https://images.nasa.gov/details-KSC-20180605-MH-LCH01_0001-Parker_Solar_Probe_Light_Bar_Test-H265-3193961.html It looks like they're shining light onto solar panels. What kind of light and why? Maybe they're testing to see if the panels are flush, or testing the light absorption? submitted by /u/yosimba2000 [link] [comments]

I've often read that the forests of New England before colonization were open and park-like without underbrush and that this was because of Native Americans regularly setting fires to clear the underbrush. Is this true or was it some other set of factors that led to the park-like appearance? Posted: 20 Jul 2018 07:27 PM PDT submitted by /u/jurble [link] [comments]

What causes the ringing sensation you get in your ears after attending a loud concert? Why can it last for so long? Posted: 20 Jul 2018 06:30 PM PDT submitted by /u/Cobez [link] [comments]

Why is the sea so clear in some places and so murky in others? Posted: 20 Jul 2018 11:34 AM PDT Obviously there will be sediment in places that rivers flow into so it's sort of obvious that the sea near river outlets would be very murky, but in places like the Maldives, the water is absolutely clear in spite of the waves churning it on the shallow beaches. There must be organic matter in the water - there's plenty living in it so there must be food and waste. Why does the debris and micro fauna/flora not cause any turbidity? Why is there no seaweed of any kind in the water? It's so clear you can see the bottom even through meters of water. I would expect that there would be loads of small things living there that would make the water at least a little cloudy? submitted by /u/Monguce [link] [comments]

Do babies sleep in the womb? Posted: 20 Jul 2018 08:21 PM PDT Do babies sleep during development in the womb? submitted by /u/Iama_Kokiri_AMA [link] [comments]

Why do ripples form when you stretch some fabrics? Posted: 20 Jul 2018 08:01 AM PDT I haven't been able to google my way to an answer on this. Take a light flexible fabric like silk or cotton and stretch it. Call the axis of the stretch the x-axis. Ripples will form in the fabric in a form resembling something like z=sin(y). My (wrong) intuition is that the force would be distributed on the x and y axes and the surface would be flat. Playing with my t-shirt on a desk makes me think there's something sort of deep going on. Very minor changes of "input" cause large changes in "output." It obviously doesn't happen under normal conditions for some fabrics, like leather or canvas for example. Is it possible to simulate the rippling as a boundary value problem? I assume there's a way to apply the wave equation, but I can't see it. submitted by /u/Haus42 [link] [comments]

Is the DNA of offspring a completely random mix of their two parents' DNA? Or are there selection mechanisms at play during gestation? Posted: 20 Jul 2018 06:59 PM PDT Was just reading a novel where it was suggested that human breeding tends to bring out the best characteristics of both parents in the offspring. Got me thinking whether DNA mixing is completely random or whether there is some way the new offspring is selecting the best DNA and removing the worst during it's formation. Follow up question, how much do we really know about this process of DNA mixing during gestation (and beyond)? Where could I read more about this? submitted by /u/BruiseHound [link] [comments]

Does a recipient of a bone marrow transplant develop allergies that copy the donor? Posted: 20 Jul 2018 06:37 PM PDT I understand bone marrow transplants and that the stem cells of the donor create the new immune system (WBC, plasma cells, antibodies, etc) of the recipient. HLA matching is to help prevent outright rejection and I also know the new immune system can attack the recipient (graft vs host disease). That said- does the recipient develop the same allergies as the donor, such as allergies to medications (ie penicillin, etc)? submitted by /u/Jaded_rose [link] [comments]

If modern humans are the result of Neanderthals breeding with another species of human, why do we refer to them as separate species? Posted: 20 Jul 2018 05:14 PM PDT I thought a species was anything that could only produce fertile offspring with itself. submitted by /u/BabylonBash [link] [comments]

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What is the “pins and needles” feeling that happens when you cut off circulation to a part of your body?

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• What is the “pins and needles” feeling that happens when you cut off circulation to a part of your body?
• About the 100 foot fissure in Yellowstone. What could that mean? What are the consequences of it opening up so suddenly?
• Are allergies connected to autoimmune disease?
• When you lose a pound, how does it get out of you?
• Neurologically, what's the difference between, say, thinking of your hand moving, and actually moving it?
• What assurance do we have that the Higgs field can continue to impart the same amount of mass to an object that is compressed more and more as is the case in a neutron star or singularity?
• Why does the road reflect when it is hot out?
• Is it true that expansion prevents huamans from ever going past the local group?
• How exactly do Oncologists predict how long a patient has left to live ?
• How does satelite radio differ from fm or am? I can easily build a radio at home for am/fm but whats stopping me from making something that picks up satelite?
• Does the brain invert the image percieved back upright if you wear inverted goggles for a certain period of time?
• How do we navigate in space?
• If temperature is the average kinetic energy in a group of atoms, why do we use Kelvin instead of Joule ?
• Is there a lot of variance in the size of adult eyeballs?
• Is the moon getting further away or is it getting closer?
• How are gas lines in cities secured from chain explosions?
• Does our atmosphere tend to settle according to density of gases, and in that case would there be a layer of methane around the planet? I just want to know if we live under a fart blanket.
• How would all the moons discovered around Jupiter affect an ocean on the planet?
• How do we perceive the color brown?
• Was the Truman Show delusion a thing before The Truman Show existed?
• Ion distribution within a superconductor?
• What is the highest frequency laser, and what challenges exist for making a higher frequency laser?

What is the “pins and needles” feeling that happens when you cut off circulation to a part of your body? Posted: 19 Jul 2018 12:27 PM PDT submitted by /u/DayLight707 [link] [comments]

About the 100 foot fissure in Yellowstone. What could that mean? What are the consequences of it opening up so suddenly? Posted: 19 Jul 2018 08:23 AM PDT submitted by /u/FreshFunky [link] [comments]

Are allergies connected to autoimmune disease? Posted: 20 Jul 2018 07:53 AM PDT I have an autoimmune disease, I also have always had seasonal allergies for as long as I can remember. According to my allergists, I have been allergic to grass & corn in my twenties, but now am allergic to grass, trees, and several food items such as wheat and walnuts, but no longer corn. I've been on immunosuppressive therapies for at least 12 years, but not at times of allergy testing. Is there a link between my immune disease and the changing food allergies? submitted by /u/LolliPoppies [link] [comments]

When you lose a pound, how does it get out of you? Posted: 19 Jul 2018 07:40 PM PDT submitted by /u/tyzekiel99 [link] [comments]

Neurologically, what's the difference between, say, thinking of your hand moving, and actually moving it? Posted: 19 Jul 2018 03:46 PM PDT submitted by /u/IkariLoona [link] [comments]

What assurance do we have that the Higgs field can continue to impart the same amount of mass to an object that is compressed more and more as is the case in a neutron star or singularity? Posted: 19 Jul 2018 05:07 PM PDT Could there be a limit to the density of Higgs bosons achievable such that beyond a certain volume the mass of an object is capped or reaches a limit and proceeding to a "singularity" is simply not possible submitted by /u/Weaver145 [link] [comments]

Why does the road reflect when it is hot out? Posted: 19 Jul 2018 06:11 PM PDT submitted by /u/Epcc7890 [link] [comments]

Is it true that expansion prevents huamans from ever going past the local group? Posted: 19 Jul 2018 08:53 AM PDT I saw a video by youtuber Kurzgesagt that said that beyond the local group (Milky way and andromeda, I think?) there expansion outweighs gravity to the extent that humans can never travel beyond it, other galaxies will always expand away faster than we can travel, is this true? submitted by /u/gmanflnj [link] [comments]

How exactly do Oncologists predict how long a patient has left to live ? Posted: 19 Jul 2018 05:29 PM PDT submitted by /u/Sedated_Sloth [link] [comments]

How does satelite radio differ from fm or am? I can easily build a radio at home for am/fm but whats stopping me from making something that picks up satelite? Posted: 20 Jul 2018 12:30 AM PDT submitted by /u/jacolopolis [link] [comments]

Does the brain invert the image percieved back upright if you wear inverted goggles for a certain period of time? Posted: 19 Jul 2018 08:18 PM PDT submitted by /u/YourAwesomeKing [link] [comments]

How do we navigate in space? Posted: 19 Jul 2018 08:37 PM PDT There is no azimuth, north, south, east or west. What bottom line do we base our space travel off of in order to propel in certain directions once we leave Earth's gravitational pull? submitted by /u/pulpbear [link] [comments]

If temperature is the average kinetic energy in a group of atoms, why do we use Kelvin instead of Joule ? Posted: 20 Jul 2018 04:46 AM PDT I'm thinking a lot about entropy and information recently. Entropy is usually measured in J/K. But K seems that be also in J. Can we consider entropy to be without dimension, the information linking a difference of temperature (a difference of energy) and energy ? Is Kelvin used somewhat like angles in radian, to help indicate a dimension while it is in practice dimentionless ? Can we speak of melting energy level instead of melting temperature ? submitted by /u/Litrale [link] [comments]

Is there a lot of variance in the size of adult eyeballs? Posted: 19 Jul 2018 05:55 PM PDT Or is it mainly the eye opening that gives the appearance of large or small eyes? submitted by /u/AsgardDevice [link] [comments]

Is the moon getting further away or is it getting closer? Posted: 19 Jul 2018 09:52 PM PDT Ever since I can remember I have always heard people say the moon is slowly getting further away from the Earth, but I just stumbled across a video of an Aerospace Engineer Major and she mentioned that the moon is getting pulled closer. I assume since she's going to college for this stuff that she would know a bit about it, but I felt like I would ask here as well. So which one is true? submitted by /u/CupcakeJake [link] [comments]

How are gas lines in cities secured from chain explosions? Posted: 19 Jul 2018 10:10 AM PDT I would imagine a fracture in a gas line that results in an explosion should ideally not result in a whole city blowing up due to the explosion traveling through pipes. How is that ensured though? Through using non-flamable gas concentration or some sort of blast preventing valves? submitted by /u/voyti [link] [comments]

Does our atmosphere tend to settle according to density of gases, and in that case would there be a layer of methane around the planet? I just want to know if we live under a fart blanket. Posted: 19 Jul 2018 06:36 PM PDT submitted by /u/Xenasty [link] [comments]

How would all the moons discovered around Jupiter affect an ocean on the planet? Posted: 19 Jul 2018 02:36 PM PDT If the planet was solid of course. The recent discovery of 12 moons surrounding Jupiter created the thought of this question. submitted by /u/WingoWangoJuango [link] [comments]

How do we perceive the color brown? Posted: 19 Jul 2018 03:04 PM PDT The color brown isn't part of the electromagnetic spectrum and usually results by mixing colors. Are there cones in our eye that perceived mixed signals as brown? Is it perceived later down the line at the occipital lobe due to the stimulation of multiple cones? submitted by /u/rickbarr21 [link] [comments]

Was the Truman Show delusion a thing before The Truman Show existed? Posted: 19 Jul 2018 06:54 AM PDT My understanding of this delusion is that it deals with someone who believes their whole life is a TV show. So, did this delusion exist before the movie? Or was it brought on by the movie? What was it called before the movie? submitted by /u/j0n5n0w91 [link] [comments]

Ion distribution within a superconductor? Posted: 20 Jul 2018 01:44 AM PDT Learning more about superconductors, I'm curious when the capacitor is charged and the double layer is formed, and when it discharges, are the number of positive ions equal to the negative ions? Is there ion-uniformity when the capacitor charges or discharges? In-terms of the motion of ions, and alignment when forming the double layers. submitted by /u/9tothe9 [link] [comments]

What is the highest frequency laser, and what challenges exist for making a higher frequency laser? Posted: 20 Jul 2018 01:24 AM PDT submitted by /u/18107 [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

What happens when you sleep that makes you feel rested upon waking up?

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• What happens when you sleep that makes you feel rested upon waking up?
• How does a rocket propel in space?
• Does anti-matter have to react /annihilate with its exact counterpart? Like anti-hydrogen with hydrogen, not anti-hydrogen with helium, for example.
• [Physics] Do stars have a North pole and South pole like Earth?
• Can you help me understand diffusion?
• What exactly is The Drude Model for calculating metallic permittivities, and what exactly is metallic permittivities?
• How was speed of light measured accurately in the olden days when technology was archaic?
• How does the treasury department determine appropriate debt maturity distributions?
• Are laser microphones limited in frequency? Or could you use a maser or RF to achieve the same result?
• How does a nuclear bomb work? How is the explosion controlled and keep from splitting every single atom in the universe if it’s just a chain reaction of atoms splitting ?
• Why is it that portable chargers above a certain mAh cannot be brought on the plane?
• How are modern scales able to measure our body fat % when we just stand on them?
• If two fermions with the same spin can't occupy the same position, how 'close' can they be?
• Have there been any studies on the relationship between gender birth order and romance/sexuality later in life?
• How do 95% confidence intervals work in nutritional studies?
• Are laser weapons simply beyond our grasp for the time being or impossible/impractical compared to 'conventional' weapons?
• Why do they collect blood from mice’s orbital sinuses?
• Why does the Atlantic seem to have so few islands?
• Why is the Moon always in the night sky? Shouldn't it be on the "day" side of the Earth at some point every month?

What happens when you sleep that makes you feel rested upon waking up? Posted: 18 Jul 2018 08:00 PM PDT submitted by /u/bluefire009 [link] [comments]

How does a rocket propel in space? Posted: 19 Jul 2018 12:53 AM PDT How does a rocket propel in space? I know that today they use ion thrusters or they shoot fuel out the back to accelerate in space but I don't get how that's possible. From what I understand, space tries to "suck" everything from the spacecraft so if that space craft ejects fuel, wouldn't the fuel be "sucked" from every direction once it exits the tail, therefore not providing an efficient thrust? The videos that explain this show that the fuel travels In a straight line directly opposite from the direction the spacecraft is going. submitted by /u/ChrisA17 [link] [comments]

Does anti-matter have to react /annihilate with its exact counterpart? Like anti-hydrogen with hydrogen, not anti-hydrogen with helium, for example. Posted: 19 Jul 2018 04:56 AM PDT I'm conscious making, containing and mixing this stuff is darn complicated but theoretically, would anti-hydrogen 'annihilate' with other nuclei? submitted by /u/greeneebeenee [link] [comments]

[Physics] Do stars have a North pole and South pole like Earth? Posted: 19 Jul 2018 06:00 AM PDT submitted by /u/PhD_in_corki [link] [comments]

Can you help me understand diffusion? Posted: 19 Jul 2018 03:51 AM PDT imagine a closed system of indistinguishable, physically, chemically, characteristically identical atoms. imagine you could magically label them such that their characteristics wouldn't change, they would still be identical, but the labels could distinguish them. - if you took the right half of the system and labeled those atoms "A" and the left half "B," would they diffuse such that they were equally mixed? if so, if you then took half of the equally diffuse mixture and labeled them "C" and the opposite half "D," would C's and D's diffuse as well? if so, would they diffuse without interrupting the equilibrium of A and B? would there be equilibrium with respect to A, B, C, and D as well as AC, AD, BC, and BD? if so, and you did it again with half "E" and half "F," would equilibrium be reached with respect to all possible label combinations? - - I've heard it explained that diffusion is a statistical phenomenon rather than a physical one, that things in an area of high concentration have a higher probability to leave than they do to enter, since there are more things that can leave than there are that can enter. is it this simple? is there a better explanation? for some reason it hasn't ever clicked in my head. submitted by /u/potatotate_spudlord [link] [comments]

What exactly is The Drude Model for calculating metallic permittivities, and what exactly is metallic permittivities? Posted: 19 Jul 2018 04:39 AM PDT I know this isn't a well formulated question, but I'm taking a relatively deep plunge into physics for a job (plasmonics), and it'd be really helpful. What exactly does this Drude Model do, and what can it be used to find about a specific metal? I'm assuming this metallic permittivity has something to do with the plasmon frequency of the metal (to my understanding, that's the frequency of an electromagnetic field that will excite the free electrons in the metal the most). submitted by /u/sabi0 [link] [comments]

How was speed of light measured accurately in the olden days when technology was archaic? Posted: 18 Jul 2018 07:26 PM PDT Especially that light can supposedly travel the earth 7 times in one second or something ridiculous like that. submitted by /u/urmmatters [link] [comments]

How does the treasury department determine appropriate debt maturity distributions? Posted: 18 Jul 2018 07:02 PM PDT With a lot of investors concerned with the possible inversion of the yield curve, I was curious about how likely/possible it is for the Treasury Department to shift their auction amounts to higher duration notes/bonds and away from shorter bills/notes to steepen the yield curve.   I've found that average length has been increasing for a few years, and the Office of Debt Management has a plan for future debt schedules (page 27/29), but a lot of their explanations for their maturity schedule centers around vague terms like "Maintaining Liquidity".   So, basically, what are the general factors that the treasury department considers when they create they determine maturity schedules and do they factor in monetary policy/federal reserve actions?   Thanks submitted by /u/The_One_Who_Sighs [link] [comments]

Are laser microphones limited in frequency? Or could you use a maser or RF to achieve the same result? Posted: 19 Jul 2018 02:10 AM PDT submitted by /u/DrunkPanda [link] [comments]

How does a nuclear bomb work? How is the explosion controlled and keep from splitting every single atom in the universe if it’s just a chain reaction of atoms splitting ? Posted: 18 Jul 2018 06:27 PM PDT submitted by /u/GoogleChromeSC2 [link] [comments]

Why is it that portable chargers above a certain mAh cannot be brought on the plane? Posted: 18 Jul 2018 07:16 PM PDT I was on a plane lately and they took away my 50000 mAh power bank :( submitted by /u/Dat_unknown_guy [link] [comments]

How are modern scales able to measure our body fat % when we just stand on them? Posted: 19 Jul 2018 12:12 AM PDT submitted by /u/ITekton1k [link] [comments]

If two fermions with the same spin can't occupy the same position, how 'close' can they be? Posted: 18 Jul 2018 06:00 PM PDT I'm almost certain I'm not grasping even the basics here, but does 'position' in this sense mean the same spot in space, or space-time? Or is this some other meaning of position that isn't quite like the colloquial use? submitted by /u/ffenliv [link] [comments]

Have there been any studies on the relationship between gender birth order and romance/sexuality later in life? Posted: 18 Jul 2018 05:34 PM PDT My wife is the youngest of 4 and the only girl. We now have a daughter and a son, the daughter is 4 years old than the son. She was noticing how different things seem to be for our son than when she was young. There's a stronger baseline of girl toys and shows, and more of a general understanding of women's needs than she ever experienced. We know in general homosexuality is a mix of genetic and environmental factors, and were curious if growing up with an older sister raises those odds (we don't care personally, we're just curious scientifically). We're also curious if marriage/divorce rates differ as we're aware our son is more comfortable with girls than other boys his age, which we think is because he lives with an older one. So, we're just curious if there's any work that has been done on correlations amongst these things. Thanks in advance. submitted by /u/Moltrire [link] [comments]

How do 95% confidence intervals work in nutritional studies? Posted: 18 Jul 2018 05:26 PM PDT This study looked at protein requirements for female cyclists: https://www.ncbi.nlm.nih.gov/pubmed/24476478 The mean protein requirement was 1.6g/kg, but one woman required 2.8g/kg to reach nitrogen balance, a huge disparity. The authors reported that the upper end of the 95% confidence limit was 2.2g/kg, and suggested it as a guideline. So in this case, are they saying that 95% of all women studied had their protein requirements met by 2.2 g/kg, and that the woman requiring 2.8 g/kg was an outlier in the highest 5%? submitted by /u/RusticBohemian [link] [comments]

Are laser weapons simply beyond our grasp for the time being or impossible/impractical compared to 'conventional' weapons? Posted: 18 Jul 2018 11:48 PM PDT Say I want to make a laser cannon to blow up tanks, is the technology to do so cheaply and effectively compared to a rocket launcher simply not there yet or at least theoretically possible or is it impossible to do so practically? I read this forum post that seems to make it sound like lasers are really impractical in terms of energy efficency and certain materials like metal are apparently not good receptors of light energy. So are lasers just a thing that science fiction jumped the gun on or is there a future yet that might hold blasters? submitted by /u/RoadTheExile [link] [comments]

Why do they collect blood from mice’s orbital sinuses? Posted: 18 Jul 2018 12:30 PM PDT (Tagged as bio because I'm not sure what else.) So I'm volunteering at a lab this summer as part of a student training program. It's been super cool, but there's one thing I cannot get out of my head: why do they take blood from the eyes of the mice? I was watching them take blood samples today, and not going to lie, it's kind of... icky. Not going-to-pass-out-right-here-in-the-lab icky, but ickier than anticipated. What they were doing was anesthetizing the mice, then jamming a teeny capillary tube right near their eyeballs and drawing blood with it. (Most of my fellow volunteers were not fans of this.) It would bleed afterwards, usually just a drop, but one or two mice bled quite a bit onto the table. The mice would wake up a few minutes later and go about their day, in no apparent discomfort, but it got me wondering. Why exactly do they use this method of collecting blood? (As far as I know, the study they're doing isn't specific to the eyes.) The procedure itself is fast, but it requires individually anesthetizing every mouse, which slows things down a lot. The mice seem fine afterwards (as far as I can tell; I'm not a professional but they act exactly the same as they did before), but would they also have been fine with some other method? Is there something about mice in particular that makes this spot a really good spot for collecting blood? I've tried Googling it, but most of the results are just instructions on how to do it and not why they're doing it (that or animal welfare/ethics groups, which have plenty of legitimate concerns, but that's not really what I was looking for.) submitted by /u/ArcadiaPlanitia [link] [comments]

Why does the Atlantic seem to have so few islands? Posted: 18 Jul 2018 08:09 AM PDT submitted by /u/DiscoConspiracy [link] [comments]

Why is the Moon always in the night sky? Shouldn't it be on the "day" side of the Earth at some point every month? Posted: 18 Jul 2018 08:04 PM PDT Anecdotally, it seems that the Moon always occupies a spot on the night sky regardless of where you are on Earth. Even during a new moon, the Moon still occupies a spot in the sky despite being invisible. I know the Moon's orbital plane isn't perfectly perpendicular to the Earth's axis of rotation but shouldn't there still be a good chunk of the month where the Moon is on the "day" side of the celestial sphere and thus completely gone from the night sky? submitted by /u/StevesEvilTwin2 [link] [comments]

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Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States