Why do we lose the desire to eat while we are sick? (Ex. when having a cold, I lose the desire to eat) |
- 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?
| Posted: 20 Jul 2018 01:17 PM PDT |
| Why does the sun's magnetic field keep changing every 11 years? Posted: 20 Jul 2018 08:14 AM PDT |
| 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? [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? [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? [link] [comments]  |
| Posted: 20 Jul 2018 04:52 PM PDT |
| How does a transistor work as an amplifier? Posted: 20 Jul 2018 04:20 PM PDT |
| 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? [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.
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? [link] [comments]  |
| Posted: 20 Jul 2018 03:43 PM PDT |
| 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? [link] [comments]  |
| Posted: 20 Jul 2018 07:27 PM PDT |
| Posted: 20 Jul 2018 06:30 PM PDT |
| 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? [link] [comments]  |
| Posted: 20 Jul 2018 08:21 PM PDT |
| 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. [link] [comments]  |
| 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? [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)? [link] [comments]  |
| Posted: 20 Jul 2018 05:14 PM PDT I thought a species was anything that could only produce fertile offspring with itself. [link] [comments]  |
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