How did the first human ancestor with 23 chromosomes pairs breed with 24 chromosome apes? |
- How did the first human ancestor with 23 chromosomes pairs breed with 24 chromosome apes?
- Which organisms have a high ratio of mature mass to sperm+egg/seed/starting mass? Does this tell us anything useful?
- How much do tidal forces affect volcanic and magmatic activity?
- Is music finite?
- You are in the round space station from 2001: A Space Odyssey. What happens if you run with the stations spin?
- Can a split brain hold a conversation?
- are gravitational waves polarized?
- How can we determine the curvature of the Universe while being inside of it?
- Why is the universe so big?
- If I double the mass of explosives (from 50kg to 100kg), does it double the size of the explosion?
- For two objects 50 billion light years away from each other, can it be said that anything happens on them simultaneously? Is there "simultaneousness" even with time dilation, etc?
- [Human Body] Are the parts of our body most sensitive to pleasure also the most sensitive to pain, and vice versa?
- Is there a relationship between Chaos Theory and Quantum Physics?
- Why doesn't scuba gear make you breathe the same air twice?
- How does alcohol poisoning happen?
- I listen to podcasts at 1.3x speed but only notice it when the intro /outro music comes on. What is my brain doing that causes this to happen?
- How fast do the eyes move?
- Do all cosmic strings have the same mass density?
- Why do Namib Ants don't hunt in the afternoon/dark?
- At what pressure does touch become pain?
- Does Juno experience any time dilation due to its proximity to Jupiter?
- How far back it is possible to say how many days have passed precisely since a given date before introduction of contemporary calendars? In the same vein, have all weeks since, say 900 AD, been kept continuous until today?
| How did the first human ancestor with 23 chromosomes pairs breed with 24 chromosome apes? Posted: 17 Jul 2016 09:52 PM PDT Modern day humans have 23 pairs of chromosomes. Our ancestor apes must have had 24 pairs of chromosomes. Meaning that a mother with 24 chromosome gave birth to a 23 chromosome child. How did this 23 chromosome ape breed with its 24 chromosome pair species? Wouldn't their child have 47 chromosomes meaning its sterile? Edit: not anti-evolution, just curious Edit 2: thanks for the great responses guys! Gonna read all of them [link] [comments]  |
| Posted: 17 Jul 2016 12:12 PM PDT For example, if a human egg and sperm are ~4ug, and the average adult mass is 70kg, then the ratio for humans is ~1.75*1010. If a giant sequoia seed is 50mg, and the average grown mass is 100,000kg, then the ratio for giant sequoias is ~2*109. My intuition is that organisms that grow larger (i.e. blue whales) and organisms with smaller "starting" mass would have a higher ratio here. Is there any significance to this, or is it just a meaningless number? [link] [comments]  |
| How much do tidal forces affect volcanic and magmatic activity? Posted: 18 Jul 2016 07:34 AM PDT For anything from Hawaii to Yellowstone, or even for similar things like oil deposits, how much does the tidal force from the moon affect them? [link] [comments]  |
| Posted: 17 Jul 2016 05:43 PM PDT Like, arrangements of songs, is it finite? If so has it/can the combinations be calculated? [link] [comments]  |
| Posted: 17 Jul 2016 10:08 PM PDT What happens if you run opposite of the stations spin? Do you get lighter or heavier? [link] [comments]  |
| Can a split brain hold a conversation? Posted: 17 Jul 2016 08:34 PM PDT When the two hemispheres of the brain are split both sides have limited control over the bodies movements. Since both sides can also see could you have a split brain person sit down and let the brain communicate with itself via a keyboard or shared piece of paper?(I am assuming that both side understand writing, if not could you use pictures?) [link] [comments]  |
| are gravitational waves polarized? Posted: 18 Jul 2016 07:36 AM PDT I've read that gravitational waves are suspected to be made of gravitons that would be spin-2 and have either 2 or 5 spin states. I don't really understand all this so could someone simplify it for me? [link] [comments]  |
| How can we determine the curvature of the Universe while being inside of it? Posted: 18 Jul 2016 02:22 AM PDT To describe the curvature of the Universe, wouldn't we need an external reference frame to compare with or something? That is, if I have a poorly drawn triangle, I can only tell it is poorly drawn because of the regular, external pixel grid that supports it. Now if the pixel grid had the same shape as the triangle, I wouldn't be able to tell if the triangle really is poorly drawn. Another example would be if the Universe was a 2D sheet of paper. Now, if I curve the sheet of paper, nothing has changed inside of my 2D Universe: distances and triangles are the same, and the observer wouldn't notice anything different ; yet the Universe has curvature now, but in an external reference frame. My point is, how can we tell if the Universe has curvature or not, if we happen to be in a Universe similar to my sheet of paper? observing that the Universe is flat does not disprove it has curvature elsewhere. There are surely numerous properties I'm missing in my oversimplified model of Universe. I also feel that I'm not talking about the usual curvature. [link] [comments]  |
| Posted: 17 Jul 2016 10:33 PM PDT I know it sounds like a question a child would ask, but seriously. Is there any reason that there is so much stuff in the universe and it's so spread out? [link] [comments]  |
| If I double the mass of explosives (from 50kg to 100kg), does it double the size of the explosion? Posted: 18 Jul 2016 02:32 AM PDT If I had a warhead that contained 50kg of explosives and has a blast radius of 100m, would doubling the explosives content result in a linear increase of the blast radius? I need to characterize the difference in blast radius between two weapon systems, but this is not my area of expertise. Thank you for your help! [link] [comments]  |
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| Is there a relationship between Chaos Theory and Quantum Physics? Posted: 18 Jul 2016 07:06 AM PDT |
| Why doesn't scuba gear make you breathe the same air twice? Posted: 17 Jul 2016 08:22 PM PDT Yes I'm familiar with rebreathers but I'm not talking about that. I'm also aware of CO2 buildup and O2 depletion, but if you breathe the air you just exhaled only one more time, it shouldn't be a problem. There is still some oxygen left in your exhaled air and there isn't that much CO2 in it. If you reuse the air in your lungs just once, I think you can extend your dive by 30 or 40 percent. [link] [comments]  |
| How does alcohol poisoning happen? Posted: 17 Jul 2016 09:26 PM PDT Usually doesn't your body just make you throw up anymore alcohol you drink if you can't process any more? How do people digest so much alcohol without throwing up that they can get alcohol poisoning from it? [link] [comments]  |
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| Do all cosmic strings have the same mass density? Posted: 17 Jul 2016 06:40 PM PDT Wikipedia states that a cosmic string one kilometer in length would have about the mass of Earth. I am wondering though, is this the same for all cosmic strings or is the actual linear density of a cosmic string dependent on other factors? [link] [comments]  |
| Why do Namib Ants don't hunt in the afternoon/dark? Posted: 17 Jul 2016 10:14 PM PDT I was watching the documentary "The Hunt" (bbc) and on one of the episodes (s1e5) they show ants in the namib habitat. They talk about how they have to keep moving in order not to die from overheating, but I didn't understand why is it that they don't hunt in the afternoon or at night, where the temperatures are lower? EDIT: Is this considered Earth Science or Biology? [link] [comments]  |
| At what pressure does touch become pain? Posted: 18 Jul 2016 03:11 AM PDT |
| Does Juno experience any time dilation due to its proximity to Jupiter? Posted: 17 Jul 2016 04:14 PM PDT Jupiter is the most massive object in our solar system aside from the sun. Does Juno experience any time dilation from being in such close proximity to it? [link] [comments]  |
| Posted: 17 Jul 2016 12:33 PM PDT Do we know how many days old would Thomas Aquinas be and if he died on a Tuesday? [link] [comments]  |
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