- An Interplanetary GPS Using Pulsar Signals
Spacecraft could determine their position anywhere in the Solar System to within 5 kilometres using signals from x-ray pulsars, say astronomers
- Tesla Wires Half a Billion Dollars to the Government
Tesla Motors’ loan repayment is a bright spot for the DOE loan program.
Tesla CEO Elon Musk hinted it would happen, and now it’s happened. Tesla, the electric car maker, has paid off the DOE loan that allowed it to build a factory and start building and selling its Model S electric car. And it’s done so nine years ahead of schedule, according to the company (see “Musk Says Tesla Will Pay Off Its Loans in Half the Time”).
- Bitcoin Hits the Big Time, to the Regret of Some Early Boosters
The first major conference for the digital currency suggests it is gaining legitimacy, but in a manner disappointing to some early enthusiasts.
This past Sunday, Doug Scribner took out five $100 bills and began feeding them into what looked like a small, white ATM in San Jose Conference Center in California. The machine swallowed the bills smartly and credited him with an equivalent value in bitcoins, an intangible, digital currency that is backed by not gold or any government, but by math.
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