Please create an account to participate in the Slashdot moderation system


Forgot your password?

Robots In 2020: Lending a Helping Hand To Humans (And Each Other) 46

Posted by timothy
from the never-show-them-weakness dept.
Lashdots writes: In the next five years, robots won't kill us (or drive our cars). But they will get better at helping us do routine tasks—and at helping each other too. Those are some of the predictions Fast Company gleaned from some of the robotics firms on its "most innovative" list, including Anki Robotics, robot-based genetic testing startup Counsyl, and Lockheed Martin, which has demonstrated a pair of unmanned aerial vehicles that work together to fight fires. I'm just waiting for drones that will simultaneously cut my lawn and deter burglars.

Wormholes Untangle a Black Hole Paradox 157

Posted by Soulskill
from the answers-in-the-gamma-quadrant dept.
An anonymous reader writes: Like initials carved in a tree, ER = EPR, as the new idea is known, is a shorthand that joins two ideas proposed by Einstein in 1935. One involved the paradox implied by what he called "spooky action at a distance" between quantum particles (the EPR paradox, named for its authors, Einstein, Boris Podolsky and Nathan Rosen). The other showed how two black holes could be connected through far reaches of space through "wormholes" (ER, for Einstein-Rosen bridges). At the time that Einstein put forth these ideas — and for most of the eight decades since — they were thought to be entirely unrelated.

But if ER = EPR is correct, the ideas aren't disconnected — they're two manifestations of the same thing. And this underlying connectedness would form the foundation of all space-time. Quantum entanglement — the action at a distance that so troubled Einstein — could be creating the "spatial connectivity" that "sews space together," according to Leonard Susskind, a physicist at Stanford University and one of the idea's main architects. Without these connections, all of space would "atomize," according to Juan Maldacena, a physicist at the Institute for Advanced Study in Princeton, N.J., who developed the idea together with Susskind. "In other words, the solid and reliable structure of space-time is due to the ghostly features of entanglement," he said. What's more, ER = EPR has the potential to address how gravity fits together with quantum mechanics.

Comment: Re:Stuff Happens (Score 1) 334

Neither of the hostages were "operatives" to be compromised. The U.S. citizen worked for USAID; he was a foreign aid worker (USAID administers the distribution of U.S. foreign aid money). Calling them "operatives" that were "compromised" (when they were both aid workers working entirely above board) makes it sound like some CIA cover op gone wrong. Please at least read the article before blaming people for ops gone wrong when nothing in fact went wrong.

Comment: Re:Just give the option to turn it off... (Score 1) 823

by ShadowRangerRIT (#48880573) Attached to: Fake Engine Noise Is the Auto Industry's Dirty Little Secret
Which is likely why electric car manufacturers are adding artificial noise at low speeds and letting tire noise handle it at higher speed. My Leaf emits a "strobing" sound below 18 MPH; above that, it stops on the assumption that the tire noise is enough.

Comment: Re:Express Lane? (Score 1) 216

by ShadowRangerRIT (#48760495) Attached to: Bill Would Ban Paid Prioritization By ISPs
Also, there are arguments to be made that roads are a public good and should be paid for by the public as a whole, not as a premium good for the wealthy. I'm personally opposed to express lanes and toll roads in general; I can (to a limited extent) support tolls on bridges and tunnels that are unusually expensive to build and maintain, but otherwise roads should be funded by gas and car registration taxes and available to all on an equal opportunity basis, no special access for the wealthy.

Comment: Re:Subsidies? (Score 4, Interesting) 516

by ShadowRangerRIT (#48414545) Attached to: Rooftop Solar Could Reach Price Parity In the US By 2016
How many tax subsidies finance into your average power plant? How much are the indirect costs (ignoring CO2 emissions, let's just focus on locally increased health care costs from coal pollution, long term storage costs for nuclear waste, military adventurism for oil, etc.) of "traditional" fuels?

The person who can smile when something goes wrong has thought of someone to blame it on.