The three-body problem, which determines how objects orbit each other in space, is notoriously difficult to solve. Now there are 231 new valid orbits.
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Scientists in South Africa on Friday launched the world’s first optical telescope linked to a radio telescope, combining “eyes and ears” to try to unravel the secrets of the universe.
The device forms part of the Square Kilometre Array (SKA) project in the remote Karoo desert, which will be the world’s most powerful radio telescope system.
The latest move combines the new optical telescope MeerLITCH — Dutch for ‘more light’ — with the recently-completed 64-dish MeerKAT radio telescope, located 200 kilometres (125 miles) away.
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How the Enlightenment Ends
Posted in futurism
But if robots kill weeds, who will spray Roundup on everything.
AI-powered weed hunters could soon reduce the need for herbicides and genetically modified crops.
How it’s done now: Current farming methods involve spraying large amounts of indiscriminate weed killer over fields full of crops that have been genetically tweaked (usually by the same company that makes the weed killer) to resist the chemicals. The pesticide and seed industry is enormous, worth $100 billion globally. Of that, herbicide sales alone account for $26 billion.
The future: Robots like the one created by ecoRobotix (shown above) will be able to roll through fields, using computer vision to target and spray individual weeds as they go. EcoRobotix claims its robo-brigade will decrease total herbicide use by a factor of 20. You might even be able to get a smaller Roomba-esque version for your home garden.
The telescope may give us a long-awaited glimpse at what lies behind the cosmic veil of the Milky Way’s super-massive black hole.
Scientists have used telescopes from all over the earth to edge closer to imaging the supermassive back hole (SMBH) at the center of the Milky Way, reports Newsweek. An SMBH, the largest type of black hole, is found in the middle of almost all known massive galaxies. The SMBH that inhabits our galaxy is located at approximately the galactic center of the galaxy (18hrs, −29 deg), and it is known as Sagittarius A*.
Pronounced Sagittarius A-star, this spiral structure within Sagittarius A West and Sagittarius A East “contains an intense compact radio source.” It’s located approximately 26,000 light years away from earth, and it can’t be seen by normal optics. Instead, Sagittarius A* lies hidden beneath the Milky Way’s enormous dust clouds.
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It isn’t always easy to wrap your mind around how light works. It’s a particle, but it’s also a wave, and that wave can be powerful. Photons generally travel en masse — we’re talking densities in the range of quadrillions per square inch if they’re coming from the sun. But what if instead of the whole wave crashing over you, you were only hit by a single drop of light — would you know? In other words, is it possible for the human eye to see a single photon?
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