Space-miners to crush asteroids and 3D print satellites
Satellite prototype Firefly designed to locate asteroids suitable for mining.
DNA shows how the sweet potato crossed the sea
Genetic strands indicate that the sweet potato got to Asia via South America long before Europeans were on the scene.
Novel solar photovoltaic cells achieve record efficiency using nanoscale structures
Will carbon nanowires be a better answer for low cost, high efficiency solar…finally?
Upstart Firm Plans to Sell Round-Trip Journeys to the Moon: Scientific American
Golden Spike says it can deliver humans to the surface of the moon for less than the cost of some robotic planetary missions. The cost to you as one of the earliest passengers? A mere $750 million for a seat.
The company’s business model assumes they will be piggybacking on a still to be determined third-party launch vehicle.
Image: Courtesy Golden Spike
New contender for oldest dinosaur
Nyasasaurus parringtoni, a newly discovered species…” fills a gap between what we previously knew to be the oldest dinosaurs and their other closest relatives,” report co-author Paul Barrett, of the Natural History Museum in London, told BBC News.
Nyasasaurus parringtoni would have shared the land with silesaurs, identified as dinosaurs’ closest relatives.
Brontosaurus, the lovable, distinct herbivore we all grew up with…never existed
Science, author Samuel Arbesman says, is a “terribly human endeavor.” Knowledge grows but carries with it uncertainty and error; today’s scientific doctrine may become tomorrow’s cautionary tale.
Take the case of brontosaurus. For more than a century, a smattering of scientific evidence led the public to fall in love with a dinosaur that had little basis in reality. In this compelling book, Mr. Arbesman lays out how knowledge — and its sister field science — is far less fixed than we assume.
What is to be done? The right response, according to Mr. Arbesman, is to embrace change rather than fight it. “Far better than learning facts is learning how to adapt to changing facts,” he says. “Stop memorizing things … memories can be outsourced to the cloud.” In other words: In a world of information flux, it isn’t what you know that counts—it is how efficiently you can refresh.
Book Review: The Half-Life of Facts – WSJ.com