- 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.
- 1,000-year-old ‘Excalibur’ sword unearthed in Spain holds Islamic origins
Researchers in Valencia have finally unraveled the age-old mysteries surrounding a historic sword, affectionately dubbed “Excalibur.” Discovered upright in 1994 at an archaeological site nestled within Valencia’s ancient town, this iron sword has long captivated scholars and enthusiasts alike, with its enigmatic origins shrouded in the annals of time. The artifact was initially unearthed in The post 1,000-year-old ‘Excalibur’ sword unearthed in Spain holds Islamic origins appeared first on Archaeology News Online Magazine.
- Enhancing fusion reactor control through combined plasma management techniques
Los Angeles CA (SPX) Apr 19, 2024 Researchers at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) are advancing fusion technology by integrating two established plasma control methods-electron cyclotron current drive (ECCD) and resonant magnetic perturbations (RMP). This combination has shown promising results in improving plasma management, crucial for generating electricity through fusion. The t
- Watch 2 gorgeous supernova remnants evolve over 20 years (timelapse video)
These supernova remnants are moving at extraordinary speeds only visible to us in long-term timelapses.
- Boeing Starliner 1st astronaut flight: Live updates
Boeing will launch its first-ever Starliner astronaut mission for NASA as early as May 6, 2024
