Posted on

Revealed: Elon Musk’s Plan to Build a Space Internet

630x420

630x420

Revealed: Elon Musk’s Plan to Build a Space Internet
By Ashlee Vance January 16, 2015

Because he doesn’t have enough going on, Elon Musk—he of Tesla Motors, SpaceX, SolarCity, and the Hyperloop—is launching another project. Musk wants to build a second Internet in space and one day use it to connect people on Mars to the Web.

Musk is tonight hosting a SpaceX event in Seattle, where the company is opening a new office. The talk will mostly be about SpaceX’s plans for hiring aerospace and software engineers in the Pacific Northwest to boost the company’s rocket-building efforts. But he’ll also use the talk to announce his newest idea, which would launch a vast network of communication satellites to orbit earth. The network would do two things: speed up the general flow of data on the Internet and deliver high-speed, low-cost Internet services to the three billion-plus people who still have poor access to the Web. “Our focus is on creating a global communications system that would be larger than anything that has been talked about to date,” Musk told Bloomberg Businessweek ahead of the announcement.

The Space Internet venture, to which Musk hasn’t yet given a name, would be hugely ambitious. Hundreds of satellites would orbit about 750 miles above earth, much closer than traditional communications satellites in geosynchronous orbit at altitudes of up to 22,000 miles. The lower satellites would make for a speedier Internet service, with less distance for electromagnetic signals to travel. The lag in current satellite systems makes applications such as Skype, online gaming, and other cloud-based services tough to use. Musk’s service would, in theory, rival fiber optic cables on land while also making the Internet available to remote and poor regions that don’t have access.

https://www.businessweek.com/articles/2015-01-17/elon-musk-and-spacex-plan-a-space-internet

Posted on

New York scientists unveil ‘invisibility cloak’ to rival Harry Potter’s

invisibility-harry

New York scientists unveil ‘invisibility cloak’ to rival Harry Potter’s
By Caurie Putnam

ROCHESTER N.Y. (Reuters) – Watch out Harry Potter, you are not the only wizard with an invisibility cloak.

Scientists at the University of Rochester have discovered a way to hide large objects from sight using inexpensive and readily available lenses, a technology that seems to have sprung from the pages of J.K. Rowling’s Harry Potter fantasy series.

Cloaking is the process by which an object becomes hidden from view, while everything else around the cloaked object appears undisturbed.

“A lot of people have worked on a lot of different aspects of optical cloaking for years,” John Howell, a professor of physics at the upstate New York school, said on Friday.

The so-called Rochester Cloak is not really a tangible cloak at all. Rather the device looks like equipment used by an optometrist. When an object is placed behind the layered lenses it seems to disappear.

https://news.yahoo.com/york-scientists-unveil-invisibility-cloak-rival-harry-potters-014359862.html