- Optical barcodes expand range of high-resolution sensor
The same geometric quirk that lets visitors murmur messages around the circular dome of the whispering gallery at St. Paul's Cathedral in London or across St. Louis Union Station's whispering arch also enables the construction of high-resolution optical sensors. Whispering-gallery-mode (WGM) resonators have been used for decades to detect chemical signatures, DNA strands and even single molecules.
- The end of the quantum tunnel: Exact instanton transseries for quantum mechanics
In the quantum world, processes can be separated into two distinct classes. One class, that of the so-called "perturbative" phenomena, is relatively easy to detect, both in an experiment and in a mathematical computation. Examples are plentiful: the light that atoms emit, the energy that solar cells produce, the states of qubits in a quantum computer.
- NASA’s Voyager 1 probe calls home after five months
For the first time in five months, NASA’s Voyager 1 spacecraft is returning usable data about the health and status of its onboard engineering systems. The next step is to enable the spacecraft to begin returning science data again. The probe and its twin, Voyager 2, are the only spacecraft to depart the Solar System and fly in interstellar space.
- NGC 4361: A planetary nebula to crow about
NGC 4361 in Corvus is a bit of an horizon-hugger at mid-northern latitudes, but it’ll reward determined observers.
- Archaeologists uncover 850-year-old medieval coins in Sweden
Archaeologists from the Jönköping County Museum have uncovered a 12th-century grave during an archaeological excavation at Brahe Church on the Swedish island of Visingsö. A team led by project manager Anna Ödéen stumbled upon the grave during monitoring work for a geothermal installation. Ödéen recounted the initial discovery: “On the very first day, my colleague The post Archaeologists uncover 850-year-old medieval coins in Sweden appeared first on Archaeology News Online Magazine.
- Zap Energy reaches new heights in fusion technology with 37-million-degree plasma
Los Angeles CA (SPX) Apr 24, 2024 Over the past ninety years, humanity has explored various fusion technologies, yet only a select few have managed to generate a thermal fusion plasma with electron temperatures surpassing 10M C. Zap Energy's innovative approach, known as a sheared-flow-stabilized Z pinch, has now successfully exceeded this plasma temperature milestone in a remarkably compact device.
- Watch SpaceX Dragon cargo capsule depart the ISS today
SpaceX's robotic Dragon cargo ship is scheduled to undock from the International Space Station today (April 28), and you can watch the action live.
- Russia vetoes UN resolution against nuclear weapons in space
Russia's ambassador to the U.N. vetoed a resolution sponsored by the United States and Japan that called upon all nations to never deploy nuclear weapons in outer space.
