Given by Dr. Caroline Robertson of the Dartmouth Autism Research Initiative, in the Department of Psychological and Brain Sciences.
Sponsored by: Center for Cognitive Neuroscience at Dartmouth.
Recorded October 18, 2018
A future quantum network may become less of a stretch thanks to researchers at the University of Chicago, Argonne National Laboratory and Cambridge University.
A team of researchers announced a breakthrough in quantum network engineering. By “stretching” thin films of diamond, they created quantum bits that can operate with significantly reduced equipment and expense. The change also makes the bits easier to control.
The researchers hope the findings, published Nov. 29 in Physical Review X, can make future quantum networks more feasible.
Particle accelerators are hugely useful in scientific research, but – like the Large Hadron Collider (LHC) – usually take up vast amounts of room. A remarkable new system developed at the University of Texas in Austin could change this.
In experiments, researchers were able to use their particle accelerator to generate an electron beam with an energy of 10 billion electron volts (10 GeV) in a chamber measuring just 10 centimeters (4 inches).
The complete instrument measures 20 meters (66 feet) from end to end. In comparison, other particle accelerators that can generate 10 GeV beams are some 3 kilometers (almost 2 miles) in length – about 150 times as long.
Detroit is now home to the country’s first stretch of road that can wirelessly charge an electric vehicle (EV), whether it’s parked or moving.
Why it matters: Wireless charging on an electrified roadway could remove one of the biggest hassles of owning an EV: the need to stop and plug in regularly.
AI Has Achieved Escape Velocity
Posted in governance, robotics/AI
Science 382, 1031–1035 (2023). DOI:10.1126/science.abo0233
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Astronomers have found a massive planet orbiting a small, cool star, and planet formation theories struggle to explain its existence.
Zillions of possible crystals exist. AI can help catalogue them | Science & technology.
More stable clocks could measure quantum phenomena, including the presence of dark matter.
The practice of keeping time relies on stable oscillations. In grandfather clocks, the length of a second is marked by a single swing of the pendulum. In digital watches, the vibrations of a quartz crystal mark much smaller fractions of time. And in atomic clocks, the world’s state-of-the-art timekeepers, the oscillations of a laser beam stimulate atoms to vibrate at 9.2 billion times per second. These smallest, most stable divisions of time set the timing for today’s satellite communications, GPS systems, and financial markets.
A clock’s stability depends on the noise in its environment. A slight wind can throw a pendulum’s swing out of sync. And heat can disrupt the oscillations of atoms in an atomic clock. Eliminating such environmental effects can improve a clock’s precision. But only by so much.