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By Nidhi Kalra

After California’s Department of Motor Vehicles recently proposed new regulations governing the testing and deployment of autonomous vehicles, many were left to wonder: Will this help retain the state’s status as a testing and deployment ground for the technology, and will it make California safer?

The answer is… yes and… maybe?

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Schematic illustrating the direction of ion/water permeation along graphene planes (credit: J. Abraham et al./ Nature Nanotechnology)

British Scientists have designed a way to use graphene-oxide (GO) membranes to filter common salts out of salty water and make the water safe to drink.

Graphene-oxide membranes developed at the National Graphene Institute had already demonstrated the potential of filtering out small nanoparticles, organic molecules, and even large salts. And previous research at The University of Manchester also found that if immersed in water, graphene-oxide membranes become slightly swollen and smaller salts flow through the membrane along with water, but larger ions or molecules are blocked.

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Most companies working on autonomous vehicles consider lidar sensors mandatory for vehicles to safely navigate alone and distinguish objects such as pedestrians and cyclists. But the best existing sensors are bulky, extremely expensive, and in short supply as demand surges (see “Self-Driving Cars’ Spinning Laser Problem”). Alphabet and Uber have both said they were forced to invent their own, better-performing sensors from scratch to make self-driving vehicles viable. Luminar hopes to serve automakers that would rather not go to that effort.

Russell doesn’t have a college degree—he dropped out of Stanford in return for a $100,000 check under a program started by venture capitalist Peter Thiel to encourage entrepreneurship. But Russell says a (short) lifetime of tinkering and building with electronics helped him design a new lidar sensor that sees farther and in more detail than those on the market.

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Atomic defects in diamonds can be used as quantum memories. Researchers at TU Wien for the first time have succeeded in coupling the defects in various diamonds using quantum physics.

Diamonds with minute flaws could play a crucial role in the future of quantum technology. For some time now, researchers at TU Wien have been studying the quantum properties of such diamonds, but only now have they succeeded in coupling the specific defects in two such diamonds with one another. This is an important prerequisite for the development of new applications, such as highly sensitive sensors and switches for quantum computers. The results of the research will now be published in the journal Physical Review Letters (“Coherent Coupling of Remote Spin Ensembles via a Cavity Bus”).

Two black diamonds on a superconducting chip

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LOS ANGELES—The grave implications of his vanity dawning on him, local man Ed Paitz realized what an arrogant fool he’s been after skipping the moving walkway at Los Angeles International Airport, sources said Thursday. “My god, what have I done?” said a despairing Paitz, realizing that, alas, he must live with the sorrowful consequences of his own hubris and proceed down the carpeted corridor on his own two feet, watching in shame as other travelers with the humility to board the conveyor platform flowed past him with ease. “My pride—my accursed pride—has brought me to this! Like Icarus and Arachne before me, let my tale serve as a warning to all those who would surrender to the vile temptations of the ego.” At press time, redemption lay at hand, as the moving walkway was ending with a small gap before the next one began.

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