Does the weightlessness in space have an affect on blood circulation in astronauts? |
- Does the weightlessness in space have an affect on blood circulation in astronauts?
- Is The Universe Cooling Faster than it Expands?
- Why isn't the mosquito an intermediate host for HIV/AIDS? Can it be?
- Can our brain know what time it is while we're asleep?
- How can a transistor amplifier have a low input or output resistance? Like with a Common Base setup?
- Two objects leave Earth at the same time for Alpha Centauri 4,37 lightyears away. The other object travels at 99,9% speed of light, and the other at 10% c. Considering time dilation, how far apart in time do they arrive?
- Under what circumstances is the difference between "microgravity" and "weightlessness" significant?
- How does the skin on your finger heal so that your fingerprint doesn't change?
- How to scientists determine enthalpies of fusion of salts?
- Is it possible for a new planet to form in our solar system?
- Star to Planet?
- Is the arc of a rainbow consistent for all rainbows?
- Is there a theoretical limit to the melting point of a material?
- Effects of electrons in high energy orbitals on molecular characteristics?
- Why do we need to carry fuel in space, doesn't the rocket/spacecraft keep traveling in a straight line with a constant velocity from the point it leaves our orbit?
- What causes a space shuttle to heat up on reentry into earth's atmosphere?
- How are caves formed?
- Can you make artificial gravity in a sphere?
- Are there alternative treatments to antibiotic resistant infections?
- If 100g of lean chicken breast provides about 26g of protein and 1g of fat, what happens to the other 73g of mass?
- Why does thoriated glass develop a yellow tint over time?
- How do we not retain memories as a baby? Why do our earliest memories start around 2?
- Which star has moved the most in human history?
| Does the weightlessness in space have an affect on blood circulation in astronauts? Posted: 16 Jul 2016 05:12 PM PDT For example, if you (in relation to the earth) hung upside down would you feel the blood rush to your head like you do on Earth? Does the Earth's gravitational pull still effect you? Perhaps just less? Thanks for any answers! [link] [comments]  |
| Is The Universe Cooling Faster than it Expands? Posted: 16 Jul 2016 06:33 PM PDT ... is there a direct relationship between temperature and the potential complexity of system (universe)? [link] [comments]  |
| Why isn't the mosquito an intermediate host for HIV/AIDS? Can it be? Posted: 16 Jul 2016 03:06 PM PDT I am reading In Praise of Wolves by R.D. Lawrence and I just learned mosquitos are an intermediate host for Dirofilaria imitis (common dog heartworm) as well as malaria and encephalitis. How does the mosquito transfer the disease? Is it through blood contact? If so, is it theoretically possible to contract HIV/AIDS from a mosquito bite if he is carrying the pathogen? [link] [comments]  |
| Can our brain know what time it is while we're asleep? Posted: 16 Jul 2016 02:46 PM PDT Is our biological clock aware of the solar clock? [link] [comments]  |
| How can a transistor amplifier have a low input or output resistance? Like with a Common Base setup? Posted: 17 Jul 2016 05:14 AM PDT Judging from the hybrid pi model, any connection between transistor terminals is always characterised by a high resistance (r_pi and r_o)... does that mean I can not use this model for CB? Or am I doing something wrong? [link] [comments]  |
| Posted: 17 Jul 2016 05:13 AM PDT |
| Under what circumstances is the difference between "microgravity" and "weightlessness" significant? Posted: 17 Jul 2016 08:16 AM PDT There seems to be a significant push to stop referring to astronauts and other low earth orbit situations as being "weightless", but instead correct it to "microgravity". It seems fairly nitpicky, and I can't imagine it's terribly relevant. How am I mistaken? [link] [comments]  |
| How does the skin on your finger heal so that your fingerprint doesn't change? Posted: 16 Jul 2016 12:26 PM PDT A few weeks ago I cut my index finger while slicing some vegetables. After the cut healed, I saw that there wasn't any visible change to my fingerprint. The cut seemed pretty deep so I was surprised by this, hence me asking the question here. [link] [comments]  |
| How to scientists determine enthalpies of fusion of salts? Posted: 17 Jul 2016 07:53 AM PDT Doesn't seem like it's possible to account for heat absorbed and emitted at the same time. [link] [comments]  |
| Is it possible for a new planet to form in our solar system? Posted: 17 Jul 2016 07:47 AM PDT |
| Posted: 17 Jul 2016 07:10 AM PDT I'm curious. I read somewhere that gas giants, if large enough, could eventually collapse into a small star. I want to know if the reverse can happen and a step further. Can a star lose mass somehow, become a gas giant and then condense into a terrestrial planet? Edit: And what would it look like if it could exist? [link] [comments]  |
| Is the arc of a rainbow consistent for all rainbows? Posted: 16 Jul 2016 04:29 PM PDT |
| Is there a theoretical limit to the melting point of a material? Posted: 16 Jul 2016 01:14 PM PDT |
| Effects of electrons in high energy orbitals on molecular characteristics? Posted: 16 Jul 2016 09:25 PM PDT The effects of electrons transitioning from lower to higher energy electron orbitals and vice versa are quite well understood, expressing as Fluorescence, Phosphorescence etc. But i would like to understand how changes in the arrangement of electrons from high or low energy states within molecules like water affects the physical characteristics of the molecule? I know in Phosphorescence it's accepted that the electrons return to their lowest energy state, but if not enough energy is captured to release a photon then the gained energy must remain stored, which should have effects. Surely if an electron has more energy it must effect the polar bonding forces, which should effect the density? Focusing on water, what effects would high energy electron states have on water as a solvent? [link] [comments]  |
| Posted: 16 Jul 2016 07:53 PM PDT From what I understand, objects in space move in a straight line with the velocity it was given until it was interrupted by another force (Newton's first law). So technically, we only need fuel to achieve escape velocity right? And keep traveling forever? Does the gravity of all the planets and bodies in solar system interfere with this somehow? Edit: When I meant fuel, I was talking about propulsion fuel. I'm aware that the rocket/spacecraft still needs fuel to maneuver about in space. [link] [comments]  |
| What causes a space shuttle to heat up on reentry into earth's atmosphere? Posted: 17 Jul 2016 04:10 AM PDT Many articles online point to friction, but then I see countless comments explaining that friction only heavily affects the shuttle at low altitudes. I also recently saw a QI episode which immediately ruled out friction as an explanation of a the heat and explained it as bow shock similar to bow shock waves which affect ships in the sea, a sort of build up of pressure. Any more information would be great. [link] [comments]  |
| Posted: 16 Jul 2016 11:18 AM PDT I was thinking about caves and began to wonder how exactly they are formed. I presume that erosion plays a big part in the process, but how would that start in the first place? And where would that water go? And what about sealed off caves with no cave opening? [link] [comments]  |
| Can you make artificial gravity in a sphere? Posted: 16 Jul 2016 06:02 PM PDT I know about the artificial gravity that can be achieved by rotating a spaceship via centrifugal force(that's the right one right?). But that, as far as I know, only works in a circular pattern. Is it possible that a sphere, instead of a torus, can spin in such a way that it would produce artificial gravity in every direction on the inside of said sphere(basically like an inverted planet)? [link] [comments]  |
| Are there alternative treatments to antibiotic resistant infections? Posted: 16 Jul 2016 12:38 PM PDT Recently, there have been a slew of articles about bacteria that are now resistant to our antibiotics of last resort. Apparently, gonorrhea will be the first to cross the finish line. Barring the discovery of new more potent antibiotics, what will medicine do to fight these antibiotic resistant infections? [link] [comments]  |
| Posted: 16 Jul 2016 11:18 AM PDT |
| Why does thoriated glass develop a yellow tint over time? Posted: 16 Jul 2016 09:59 PM PDT Some time ago radioactive thorium was used to create glass with high refractive indices for use in the lens making industry. It has been largely replaced now (due to the health issues associated with radioisotopes) but examples of this original glass have become yellowed over time. Some people suggest that exposing the glass to UV light will return it to a clear state. What is going on here? [link] [comments]  |
| How do we not retain memories as a baby? Why do our earliest memories start around 2? Posted: 16 Jul 2016 09:56 AM PDT |
| Which star has moved the most in human history? Posted: 16 Jul 2016 09:05 PM PDT Which of the stars in the night sky has (appeared to have) moved the most in the recent past and in all of human history? I know stars are used for navigation because of their location in the sky but they are moving, just imperceptible slowly. Which ones can we, either in ones lifetime or in human history, can we perceive the movement? [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 Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment