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Solar Wind Energy Source Discovered
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ML1 Send message Joined: 25 Nov 01 Posts: 21189 Credit: 7,508,002 RAC: 20 |
Quite a feat and rather interesting both for spacecraft and here on Earth: Solar Wind Energy Source Discovered ... The discovery was made by a group of astronomers trying to solve a decades-old mystery: What heats and accelerates the solar wind? The solar wind is a hot and fast flow of magnetized gas that streams away from the sun's upper atmosphere. It is made of hydrogen and helium ions with a sprinkling of heavier elements. Researchers liken it to the steam from a pot of water boiling on a stove; the sun is literally boiling itself away. “But,†says Adam Szabo of the NASA Goddard Space Flight Center, “solar wind does something that steam in your kitchen never does. As steam rises from a pot, it slows and cools. As solar wind leaves the sun, it accelerates, tripling in speed as it passes through the corona. Furthermore, something inside the solar wind continues to add heat even as it blows into the cold of space." Finding that "something" has been a goal of researchers for decades. ... ... hiding in a dataset from one of NASA's oldest active spacecraft, a solar probe named Wind... Also rather interesting for fusion power to power whatever... Keep searchin', Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
Franz Bauer Send message Joined: 8 Feb 01 Posts: 127 Credit: 9,690,361 RAC: 0 |
NASA has it wrong. The solar wind is not a stream of hot gas it's a plasma. Plasma is the fourth state of matter and consists of + ions and - ions. In other words, the Sun isn't a ball of hot gas but a ball of plasma. Therefore, a stream of ions accelerating along the sun's magnetic field is an electric current. In a plasma both the + ions and - ions can flow to produce an electrical current. In a regular solid metal wire only the electrons can move from atom to atom to produce a current. NASA seriously needs to brush up on it's Plasma Physics and Electrical Engineering. |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 31001 Credit: 53,134,872 RAC: 32 |
After you left school they found some more states of matter. http://en.wikipedia.org/wiki/List_of_states_of_matter NASA said "magnetic gas" that is a http://en.wikipedia.org/wiki/State_of_matter#Magnetically_ordered state of a gas. |
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