Saturday, November 8, 2014

Where does the Earth end and space begin

Have you ever wondered where the Earth ends and outer space begins? Turns out the border sits 118 kilometers (or 73.2 miles) above our planet, according to a paper published in the Journal of Geophysical Research-Space Physics.
How can scientists say definitively? One of the differences between Earth and space centers on how well particles are treated. We subject matter in the Earth’s upper bounds to a nice, gentle wind. The Wild West of space, however, tends to be a more violent place, where flows of charged particles can reach 1,000 kph (621 mph), according to the paper’s lead authors, L. Sangalli and D.J. Knudsen at the University of Calgary.
The team gathered the data on ion velocity, winds and electric fields with the help of a rocket that cruised for just five minutes in the edge of space.
Now what? Well, figuring out where the Earth ends and the rest of the yawning universe begins can help scientists to understand how matter and energy travel across this far-away border and can give us insight into stuff like how space affects the planet’s climate and environment, according to the related Eureka press release.

That means a vertical mag-lev system of 118 kilometers (or 73.2 miles) high can greatly reduce the cost and can transport more heavy materials in a short space of time for planetary exploration where program is working on and at the same time harvesting clean typhoons and outer space energies to share investment costs and lowering them even further. see slideshow.