Sit! Stay! Fetch! Map a Martian cave!
Robotic “Mars Dogs” could use artificial intelligence and sensors to investigate the Martian surface and map hidden lava tunnels.
Electric vehicle start-up Canoo unveiled a new delivery van Thursday ahead of its public debut on the Nasdaq next week.
The futuristic-looking van — known as a multi-purpose delivery vehicle, or MPDV, because of the ways it can be upfitted — is designed for everything from last-mile deliveries to food trucks, according to the California company. It is expected to start at around $33, 000.
“There are many use cases that this vehicle can do,” Canoo Chairman Tony Aquila, a major investor in the company, said during a video unveiling of the MPDV. “We wanted it to look very smart, very modern but at the same time be very affordable.”
The Lightening SuperBike is the fastest production motorcycle in the world, clocking in at 218 MPH. (There are faster bikes, but none of them are street legal.) It recently won the Pikes Peak International Hill Climb, beating all competitors, including gasoline-powered bikes. But don’t ask how many cylinders its engine has — this bike is solar powered. Well technically it’s battery-powered, but it charges the batteries with solar energy.
Image: SMA America
The SuperBike sports a liquid-cooled 125 kW electric motor, roughly equivalent to a 167 hp engine. At non-racing speeds, it offers a 100 mile range on the highway and 160 mile range in the city. Wondering why the mileage is higher in the city than on the highway? Two words: regenerative braking. How much will it cost to “fill the tank?” With its 370V 12 kWh battery bank and an electric rate of $0.12 per kWh, you can drive 160 city miles on $1.44 worth of charge, assuming you’re charging it from the grid. If you go solar, it’s free after you recover the investment in the solar panels and inverter.
Quantum computational advantage or supremacy is a long-anticipated milestone toward practical quantum computers. Recent work claimed to have reached this point, but subsequent work managed to speed up the classical simulation and pointed toward a sample size–dependent loophole. Quantum computational advantage, rather than being a one-shot experimental proof, will be the result of a long-term competition between quantum devices and classical simulation. Zhong et al. sent 50 indistinguishable single-mode squeezed states into a 100-mode ultralow-loss interferometer and sampled the output using 100 high-efficiency single-photon detectors. By obtaining up to 76-photon coincidence, yielding a state space dimension of about 1030, they measured a sampling rate that is about 1014-fold faster than using state-of-the-art classical simulation strategies and supercomputers.
Science, this issue p. 1460
Quantum computers promise to perform certain tasks that are believed to be intractable to classical computers. Boson sampling is such a task and is considered a strong candidate to demonstrate the quantum computational advantage. We performed Gaussian boson sampling by sending 50 indistinguishable single-mode squeezed states into a 100-mode ultralow-loss interferometer with full connectivity and random matrix—the whole optical setup is phase-locked—and sampling the output using 100 high-efficiency single-photon detectors. The obtained samples were validated against plausible hypotheses exploiting thermal states, distinguishable photons, and uniform distribution. The photonic quantum computer, Jiuzhang, generates up to 76 output photon clicks, which yields an output state-space dimension of 1030 and a sampling rate that is faster than using the state-of-the-art simulation strategy and supercomputers by a factor of ~1014.
Similar findings may tell scientists about magnetic fields around exoplanets.
Scientists may have detected radio emissions from a planet orbiting a star beyond our sun for the first time.
The astronomers behind the new research used a radio telescope in the Netherlands to study three different stars known to host exoplanets. The researchers compared what they saw to observations of Jupiter, diluted as if being seen from a star system dozens of light-years away. And one star system stood out: Tau Boötes, which contains at least one exoplanet. If the detection holds up, it could open the door to better understanding the magnetic fields of exoplanets and therefore the exoplanets themselves, the researchers hope.
The Energy Department and National Nuclear Security Administration, which maintains the U.S. nuclear weapons stockpile, have evidence that hackers accessed their networks as part of an extensive espionage operation that has affected at least half a dozen federal agencies, officials directly familiar with the matter said.
On Thursday, DOE and NNSA officials began coordinating notifications about the breach to their congressional oversight bodies after being briefed by Rocky Campione, the chief information officer at DOE.
They found suspicious activity in networks belonging to the Federal Energy Regulatory Commission (FERC), Sandia and Los Alamos national laboratories in New Mexico and Washington, the Office of Secure Transportation at NNSA, and the Richland Field Office of the DOE.
Danish company plans to fit ships with small nuclear reactors to send energy to developing countries.
The advent of “big battery” technology addresses a key challenge for green energy – the intermittency of wind and solar.
This video explains translation or biosynthesis of proteins.
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On December 3, Science magazine published a scientific paper by Chinese scientists on the results of experiments with a prototype quantum computer.
It was widely reported in the media that the Chinese system needed only 200 seconds to carry out a computation that would take over two billion years using the fastest supercomputer existing today.
The experiments were designed and carried out by a top-level research group led by Pan Jianwei and Lu Chaoyang of the University of Science and Technology in Hefei, China. Pan is one of the most famous Chinese physicists today, referred to once in Nature magazine as the “Father of the Quantum.”