Earth Science

This video claims that electricity can be extracted from the air. I'm not sure how useful this would be but it looks like it should work. The video is short and explains the idea in some detail. Could this concept be used to generate electricity in a way that would be useful?

First Post Alert! I was watching "The Pyramid Code" and there is a part where a man says if you can divide the stream of water coming from your sink into two streams you can take a led indicator light a put it between the streams and about every 20 seconds it will light up. He said it was a common at home physics experiment but i can find nothing on it. The only thing I have found slightly relating to this is an old forum which was no help. http://www.getbig.com/boards/index.php?topic=517324.0 I have tried to replicate this and have been unsuccessful. I was wondering if this experiment is documented anywhere else or if anyone has heard of it. Than…

How does iron preserving works?

On Earth it is thought in some circles that plate tectonics occurs on Earth due to the interaction of water making subduction easier if not the key to making it happen. This results in various minerals like granite which make up large portions of the Earth's continents and cannot occur without the interaction of magma and water. What role does being exposed to an atmosphere have in this? Would a world with no dry land have plate tectonics and or rocks like granite?

As we all know just from reading 5th-grade level astronomy books, the only known sources of water on Mars are A) permanently frozen solid, and B) located in the north and soul poles of those planets. Now, the frozen part makes perfect sense. But why the poles? Why that location in particular that caused the water to gravitate towards it? Does it have to do with the polar magnetic fields? If so, why don't the poles here on Earth also boast the planet's largest congregation of water? In fact, here in Earth, your likelihood of finding water seems to be primarily determined by altitude, rather than latitude and longitude. Water congregates to areas that are "be…

Not the exact temperature but.. I've been wondering There has been some debate on the internet about room temperature or cold water being better for you body (im sure its all pseudo science nonsense) But it did get me thinking. The springs humans have been drinking out of for throughout history on this planet.. Are most of them pretty cold? Do we have an evolutionary preference for cold water? I have never really been to a spring to gather my own water. Are they usually pretty cold?

Is there a method of wave to wave communication? As for, an interaction between radio waves. This comes from a Taiwan taxi driver btw Like a receiver carrier wave Or modify wave in mid air

this part: that the surface of the ocean follows the bed surface. That is not of my knowledge. 1.from what I (thought I) knew, the ocean bed is thinner than the continent. Where the mountains rise, the crust is deeper, like an iceberg. 2.I don't understand why the ocean surface should follow its bed. I am guessing that the ocean surface shoud follow the geoid, since it is the definition of what the geoid is.

Reading up on the heat sources that cause its interior temperatures, I'm a bit puzzled by this: How does the external forces from the other astronomical bodies and its rotation cause 'pressure'? It seems counterintuitive because the forces are from outside and the Earth's rotation will cause a centrifugal.action. At first sight, it seems everything mentioned would seek to pull it apart. My commonsense says that the Earth''s own gravity would centripetally create the necessary pressure but it's not mentioned.

here they say after about a billion years the sun will become hot enough to boil our oceans, will this cause animals and humans any pain? and if not will a few billion years later, the sun will become a red giant so large that it will engulf our planet; will this cause a long painful death or a quick death?.... thanks.

I've placed this in Earth Science, rather than Astronomy, because it is, in essence, a geological tale. And I've put it in Earth Science, rather than Science News, because I'd like to see this sub-forum get more traffic. Three interesting papers have been presented at the 49th Lunar & Planetary Science Conference in The Woodlands, Texas that address tectonics on Venus. The lithosphere of Venus has been broken and, in places, mobile Venus crustal tectonics analagous to jostling pack ice Life potential on early Venus connected to climate and geological history The majority of planetary scientists consider Venus to lack plate tectonic act…

Hi, can anyone recommend some high quality documentaries on earth science topics? (geology, meteorology, anything related to earth sciences goes...) Possibly that can be found in DVD? Thanks in advance.

My occupation sometimes involves my working in the location of new construction where the ground surfaces have been altered to a certain degree, thus giving me a wonderful opportunity to look for any interesting rocks that catch my attention. Several weeks ago I spotted one while on a site that had been slowly filled-in for years with trucked in materials from around the region. There had been a bowling center there since the fifties and it was recently demolished with the total removal of the old parking lot pavement. The rock was just lying with its most reveling side exposed at the ground's surface. This little rock contains an amazing amount information about its…

A BBC report about the the Toba volcanic eruption that sheds new light on the human response during the winter that must have followed and its effect on human evolution. This appears to run contra to previous ( conventional) thinking http://www.bbc.co.uk/news/science-environment-43377960

OK, firstly I'm no expert in climate change and sadly and unforgivably do not really know enough about it, other then to say I'm slowly rectifying that, and in any stretch of the imagination, I'm sure most reasonable thinking people, those without any agenda or self interests in fossil fuel productions and such, would agree with the principal that even if there is any doubt as to catastrophic human induced climate change, one should err on the side of caution...for the sake of those that are following us. My interest was aroused by two articles...[1] concerning the incredible snow falls and freezing temperatures in Britain, North America and Europe in recent times, c…

I'm trying to understand the effect of humidity in my living environment- a camper van. My limited understanding is that the relative humidity in my camper van should be roughly between 40-80%. And an ideal way to maintain lower humidity is apparently to increase the air flow by opening windows. If the relative humidity outside is over 80% (which it is: 5 degrees C/ 83%) would this even help? And isn't it unhealthy simply being outside in this case?

If the earth magnetic field does not spin together with the earth, should cause some induction in wires fixed to earth surface (as power transmission wires, pipelines) and to wiring within a geostationary satellite, is that right ? If the earth magnetic field does spin synchronized/together to earth rotation, the wiring in geostationary satellites should not experience induction from crossing magnetic lines of force; is that right ?

Headline says it all Beach that vanished 12 years ago in a storm reappears overnight. Mind you it could only happen in the Emerald Isle https://www.msn.com/en-gb/news/world/irish-beach-returns-overnight-after-vanishing-in-storms-12-years-ago/ar-BBFqwut?ocid=spartandhp

Wouldn't you have loved to be there!

Well it can in New Zealand. https://www.theguardian.com/world/2017/mar/16/new-zealand-river-granted-same-legal-rights-as-human-being

Hello this is my first post, i hope i ask in right category I was wondering since how many million or billion years earth is suitable for humans to live ?

A very basic question...How do geosynchronous satellites maintain their position in regard to the earth's continuous seasonal shift? For instance, if a geosynchronous communication satellite (my HughesNet Network Provider for instance) is positioned above the equator, how does it maintain its alignment despite the seasonal tilting of the earth between the Tropics of Cancer and Capricorn? The alignment of my receiver dish and the satellite, I have been told is critical, so how does it compensate for seasonal changes in the earth's position relative to the satellite? It seems that the satellite would need to, at the minimum, rotate to maintain alignment...likely using thr…

When talking global warming and climate change and all the causes I have a question. With all the pollution in the air and different types what, if anything, happens to the atmospheres reflection ability of sunlight? Are the pollutants reflecting in any way, meaning less sunlight or less intense rays reaching the surface or do pollutants magnify the intensity of the rays or is just no effect at all? Also NASA's ICESat has now showed that 70 percent of the earth is covered by clouds. Will this change with climate change or stay the same and if changes do happen what would the effects be do to increased or decreased cloud coverage?

Hey. I was very curious to know, how does Coriolis affect animals and birds. I heard that it affects bird navigation, any insight would be helpful. Also how does it impact plants? I'm only in gr10, so please simplify it. Thanks

Hello everybody! Earthquake light is said to appear in the sky during some earthquakes https://en.wikipedia.org/wiki/Earthquake_light its mere existence is controversial and poorly explained. Several explanations have been proposed, I'm pleased with none, so I just feel the need to add my own piece of mess to the ambient chaos. Internet-era videos show short light reflected by clouds for which narrow sources can be seen on the ground. Electric sparks explain these neatly, prompting some people to reduce all observations to mundane causes. Though, earthquake light has been reported centuries ago and also over the Ocean, a big difficulty for triboelectric, ionic…