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Henry
Why is it necessary for humans to sleep?
Sleep seems be common to most if not all animals. But why is it so necessary? What does it actually do for the body/mind that makes it necessary?
7 AnswersBiology8 years agoWhy doesn't the Earth's atmosphere get stripped away?
I've read that the Solar System is moving at a half billion miles per hour clip. At that speed, I don't understand why the Earth's atmosphere and everything else movable on the surface doesn't get stripped away. Gravity can't be strong enough to counteract this. But apparently it is. Can't understand how something moving like a bullet can retain an atmosphere.
8 AnswersAstronomy & Space9 years agoCould the pulling/stretching of space itself be the explanation of dark energy?
This is purely a hypothetical what if proposition. What if the edges of space were being pulled or stretched by some force beyond our universe. That would explain the acceleration of the most distance objects, as they would be most impacted by this stretching of space, i.e., they would be most impacted by the current.
5 AnswersAstronomy & Space9 years agoHave there been any theories concerning what happens to matter that goes into a black hole?
That is, to what extent atomic structures are broken down into more elementary particles. I understand they have now identified 16 elementary particles in breaking apart the atom.
3 AnswersAstronomy & Space9 years agoCould our universe be the result of a so called white hole?
As I understand it, the white hole is a hypothetical flip side of a black hole. Matter goes into a black hole and is spewed out the white hole in a different dimension, a new universe. Would suggest a continuous creation of matter in our universe from the white hole. Probably no evidence of this continuous creation of matter, right?
5 AnswersAstronomy & Space9 years agoHow far away has our communications reached in space?
It seems that radio communication began roughly in the 1890s so I'm assuming radio waves from earth have only reached approximately 115 light years and no farther. Which means that in a galaxy that's 100,000 light years across, our communication to the universe so far is very limited in its reach. Probably should be no surprise that no one has heard us. How many stars within 115 ly?
6 AnswersAstronomy & Space9 years agoWhat actually creates wind?
I understand the friction between a cold air mass and a warm air mass creates wind but how does this actually happen at the level of the oxyzen and nitrogen atoms?
7 AnswersWeather9 years agoDo they know what elements from the periodic table are included in a cancer cell?
Might be able to attack the cancel cells by trying to manipulate particular elements, at the level of the individual atoms, in the cell, no? Try to manipulate particular elements with electrons to convert elements to something else.
2 AnswersChemistry9 years agoHow would one explain the physics of fire at an atomic level?
Does the light in fire come from photons released from atoms? Are electrons released to produce the heat?
1 AnswerPhysics9 years agoCould a black hole singularity be spawning a universe on the other side?
The concept here is that matter that gets sucked into a black hole gets crushed into subatomic particles and spewed out the other side into a new universe that reverses the process reconstructing atoms, i.e., our big bang wasn't a one time event but has been continuous and is the result of a black hole in another universe. This is purely a speculative what/if question. More of an idea than a question. A multi-universe scenario based on black holes.
5 AnswersAstronomy & Space9 years agoWhat is the current thinking on dark matter?
What are the current theories explaining dark matter?
5 AnswersAstronomy & Space9 years agoWhat is the cost of the US military installations in Europe?
WWII ended 1945 and the Cold War ended with the fall of the Berlin Wall in 1989 and yet we still have a virtual army in Germany, at a time when our deficit just passed 15 trillion. Does anyone in Washington pay attention to wasteful spending? It would appear to me that here is a place where the US govt could cut considerable cost. Curious to know how much could be saved if we let the Germans defend themselves.
1 AnswerMilitary9 years agoWere ethnic groups caused by a lack of mobility?
For the first 180,000 years of homosapiens, mobility was limited to walking, so concentrations of humans tended to be isolated from each other, and so develop unique traits, in essence their ethnicity. Conversely, logically, ethnicity should break down over time if mobility increases, which it has to a large degree. Bottom line, is there a relationship between ethnicity and mobility over time?
2 AnswersOther - Cultures & Groups9 years agoIs there a plant on earth that we could use to start photosynthesis on Mars?
A plant that could withstand Marsian atmospheric and soil conditions, so that it would rapidly regenerate itself and so start photosynthesis on the planet -- ultimately creating an oxygen oriented habitable environment. The idea being to massively seed the planet with such a plant, and exploit its ability to rapidly regenerate itself in that hostile environment.
4 AnswersAstronomy & Space9 years agoWhat causes the 1 to 1 ratio of electrons to protons in the atom?
All atoms appear to have this ratio so there must be a mechanical cause for it to exist, that there is always an equal number of protons to electrons. So what makes this happen?
1 AnswerPhysics9 years agoIs all energy transfer based on the behavior of electrons?
Read recently that all energy transfer is based on the release or acceptance of electrons in the outer most shell of the atom. This sounded like a pretty revolutionary and sweeping statement. But is it true?
1 AnswerChemistry9 years agoIs it gravity that binds the electron to the nucleus?
Like planets bound to the Sun, are electrons bound to the nucleus by gravity?
5 AnswersAstronomy & Space9 years agoWhat algorithm is used to detect intelligence with the scanning for radio waves in the universe?
What would constitute "intelligence" amid random radio waves?
2 AnswersAstronomy & Space9 years agoWhere was the habitable zone, say, 2 billion years ago?
I understand the Sun has gotten hotter during its 4.5 billion year existence. Which makes me wonder if the habitable zone has moved significantly based on estimates of the Sun's change in temperature, such that at an earlier period it was centered on Venus rather than Earth. If so, suggests that Venus may have been much different billions of years ago, perhaps habitable.
3 AnswersAstronomy & Space10 years agoCould gravity explain dark energy?
If there were mass beyond our known universe, perhaps a solid mass, this would explain why the most distant galaxies are accelerating. This explanation fits what we are seeing, as the most distant galaxies would be closest to this mass, and so the mass would therefore exert the strongest gravitational pull on them -- thus explaining their accelerating compared to other galaxies.
8 AnswersAstronomy & Space10 years ago