Are there any differences between they way earlier species of humans experienced pregnancy and birth and the way we experience it now? |
- Are there any differences between they way earlier species of humans experienced pregnancy and birth and the way we experience it now?
- Can we repair damaged brain parts/tissues? Other organs have proved to be successful but how about the ever-complicated brain?
- What happens to aquatic life when a lake freezes over? Do the animals and plants somehow hibernate, or do they find a way to live under to ice? Where would they get oxygen?
- Is the large intestine itself the cause of foul odor or is it the food and gut bacteria combination?
- Can anything be temporarily magnetized in the presence of a strong enough magnetic field?
- If by depressurising we can go from solid to liquid to gas. How about from gas going to plasma?
- How do scientists measure things like size, weight or the age of planets?
- What causes the Koch snowflake to have a infinite perimeter?
- Why do some planes have more propellor props/arms than others? Does it have to do with cruising speed?
- Does the size of a brain directly affect intelligence?
- Why do we experience this “call of the void” in front of a big drop?
- What are the differences between male and female eyesight?
- Is there anything notable about the other focus of an orbital ellipse?
- How do cars accurately measure the temperature while ignoring wind chill?
- At the end of the Permian era, we see a greenhouse gas effect situation happen because of a volcanic eruption and bacteria... how did the planet recover from this?
- Do our pheromones change as we age?
- Why doesn't the Earth's elliptical orbit affect its temperature (Cause Seasons)?
| Posted: 21 Dec 2018 10:23 PM PST Things like gestation periods, how the body reacts to pregnancies, the way the pregnancy itself progresses - is there anything that has changed over time, even perhaps between now and a couple centuries ago? [link] [comments]  |
| Posted: 21 Dec 2018 10:42 PM PST |
| Posted: 21 Dec 2018 07:32 PM PST |
| Is the large intestine itself the cause of foul odor or is it the food and gut bacteria combination? Posted: 21 Dec 2018 05:25 PM PST So I've been reading about women who were born without a vaginal cavity, or transgender woman who get srs, doctors using the sigmoid colon as the vaginal cavity and I have a question. So there seems to be this hearsay that this vaginal cavity would produce a bad odor. But phsyiologically and biologically speaking, is this even possible? Is the intestine itself the cause of bad odor when we deficate or is it the food mixed with gut bacteria that causes the bad smell? And wouldn't this smell not be possible if a part of the intestine was used to line a vaginal cavity? [link] [comments]  |
| Can anything be temporarily magnetized in the presence of a strong enough magnetic field? Posted: 22 Dec 2018 12:12 AM PST I know that only ferromagnets can stay magnetized after the magnetic field is removed, but as for objects being temporarily magnetized, I was not able to find any definitive answers through google. I also checked on this sub, and found a few questions that were related, but the answers seemed a bit inconclusive so I figured I would ask again. [link] [comments]  |
| If by depressurising we can go from solid to liquid to gas. How about from gas going to plasma? Posted: 22 Dec 2018 04:10 AM PST I'm wondering if by applying pressure we can go from gas to liquid. How about depressurizing gas into plasma? I've learned this thing called PAW(plasma activated water) from TUe. They use electricity. But the effects treated water on e.g. growing plants or keeping vaas flowers better, is similar to what I've seen with water treated by a simple passive device where tapwater is pushed through the hole of what has the shape of an hourglass, but after the pressure increase it comes out and depressurized instantly. Hence my question; could both methods of treating water, actually be based on the same idea; creation of plasma. [link] [comments]  |
| How do scientists measure things like size, weight or the age of planets? Posted: 21 Dec 2018 01:16 PM PST |
| What causes the Koch snowflake to have a infinite perimeter? Posted: 21 Dec 2018 11:17 PM PST Why Can't you just create a circuit in the shape of the Koch snowflake and measure light from point A to point B? A and B represent 1 interval around the Koch snowflake. If it doesn't take infinite time to get from A to B would that prove the perimeter is finite? I know almost next to nothing about a circuit. So take that into consideration when answering the question. [link] [comments]  |
| Posted: 21 Dec 2018 05:08 PM PST |
| Does the size of a brain directly affect intelligence? Posted: 21 Dec 2018 08:16 PM PST Many neuroscientists seem to agree that the main determining factor of intelligence lies in the molecular activity at the synapses, but I've also read that the part of Einstein's brain that dealt with logic and reasoning was physically larger than the average person's which may have contributed to his superior intelligence. Both sides of the argument bring valid points and I'm not sure which to believe. [link] [comments]  |
| Why do we experience this “call of the void” in front of a big drop? Posted: 21 Dec 2018 01:55 PM PST |
| What are the differences between male and female eyesight? Posted: 21 Dec 2018 05:05 PM PST There was a conversation on the way home from work tonight, VR was brought up and that it can cause a form of "travel sickness". I remember hearing that during testing more females responded to this sickness than males. I also recall hearing somewhere about the differences in eyesight for men and woman and it went something like this: male's have better depth perception and females have better periphery vision. I've never been able to find studies suggesting this but I have come a study mentioning that the different sexes view colour differently. Could someone explain to me what the modern scientific position is on the differences in male and female eyesight. Thanks and Merry Christmas all [link] [comments]  |
| Is there anything notable about the other focus of an orbital ellipse? Posted: 21 Dec 2018 08:20 PM PST Kepler's laws of planetary motion says that planets orbit the sun in an ellipse with one of the foci being then sun. Is there anything of note at the other focus though? [link] [comments]  |
| How do cars accurately measure the temperature while ignoring wind chill? Posted: 21 Dec 2018 12:33 PM PST It seems like it would be difficult to get an accurate measurement if the car moves at fast speeds, hence creating wind and introducing a wind chill effect. [link] [comments]  |
| Posted: 21 Dec 2018 12:09 PM PST When speaking about the current situation with global warming I often hear warnings about how a positive feedback loop of planetary warming could lead to a situation like the greenhouse gas effect on Venus. However, vast amounts of CO2 and methane have been released into the atmosphere previously in the earth's history (and though it was cataclysmic) it seems that the earth recovered and did not continue to warm. What happened before to stabilize the climate? Is it likely to happen again in the future? [link] [comments]  |
| Do our pheromones change as we age? Posted: 21 Dec 2018 01:12 PM PST If we had very good chemistry/attraction with someone in high school, if you don't see them for 30 years, will that spark still be as strong, or will our pheromones have changed so that won't be the same? [link] [comments]  |
| Why doesn't the Earth's elliptical orbit affect its temperature (Cause Seasons)? Posted: 21 Dec 2018 08:35 AM PST I keep hearing that the Earth's tilt is responsible for seasons and that the angle of incidence of the sun's rays are the main player. But, the tilt cause a change of distance of around 5000km whilst Earth's orbit can cause a change of 5000000km. I don't get how this doesn't play a role in seasons change. I know the the heat is spread along a big surface area when the angle of incidence increases, but I fail to comprehend how this has a much larger effect than 5 MILLION km change in distance. Does this have to do with how the heat is transferred? (ie. Radiation) [link] [comments]  |
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