NEW YORK (AP) — Getting an Amazon package delivered from the sky is closer to becoming a reality.
The Federal Aviation Administration said Monday it had granted Amazon approval to deliver packages by drones.
Amazon said that the approval is an “important step,” but added that it is still testing and flying the drones. It did not say when it expected drones to make deliveries to shoppers.
A startup energy company in New Zealand believes it can power the world with a wireless electric transmission system that can bring power to hard-to-reach areas and do so at lower cost than with traditional power lines.
The startup, Emrod, has teamed up with a leading power supply company to test power transmission using a series of antennas. The only limiting factor is the antennas must be within line of sight with each other.
The system consists of a power source, a transmitting antenna, multiple relay stations, and a receiving antenna, often referred to as a “rectenna.”
Among all the curious states of matter that can coexist in a quantum material, jostling for preeminence as temperature, electron density and other factors change, some scientists think a particularly weird juxtaposition exists at a single intersection of factors, called the quantum critical point or QCP.
“Quantum critical points are a very hot issue and interesting for many problems,” says Wei-Sheng Lee, a staff scientist at the Department of Energy’s SLAC National Accelerator Laboratory and investigator with the Stanford Institute for Materials and Energy Sciences (SIMES). “Some suggest that they’re even analogous to black holes in the sense that they are singularities—point-like intersections between different states of matter in a quantum material—where you can get all sorts of very strange electron behavior as you approach them.”
Lee and his collaborators reported in Nature Physics today that they have found strong evidence that QCPs and their associated fluctuations exist. They used a technique called resonant inelastic X-ray scattering (RIXS) to probe the electronic behavior of a copper oxide material, or cuprate, that conducts electricity with perfect efficiency at relatively high temperatures.
It shouldn’t be any secret that mitochondria can make their own fatty acids. The enzymes mitochondria use to do it were discovered decades ago. Unfortunately, only a few individuals among the biologically literate masses have come to appreciate this critical fact about mitochondrial behavior. Perhaps the bigger issue is why mitochondria would go to all the trouble when cells can already make all the fatty acids they need.
Wikipedia itself remains largely in the dark when it comes to mitochondrial fatty acid synthesis. It does contain several exhaustive entries for enzymatic players in the main cellular fatty acid processes, but it is hard pressed even to mention that mitochondria can do it, too. For years, the small cadre of devotees who studied it referred to it as FASII, for fatty acid synthesis type II. This was because it looked just like the pathways of the same name used by bacteria, from which mitochondria are derived. Eukaryotes, on the other hand, employ FAS type I (FASI) in the cytoplasm.
The main difference seems to be that the FASI enzymes have partially merged into large multifunctional conglomerates that carry out whole sequences of reactions together. Presumably, this makes for greater efficiency because the many enzymes and substrates needn’t slowly diffuse to find each other within a large cytoplasmic reaction space. In the fullness of time, something curious happened to the field: A trickle of more recent papers began using a new name for FASII as done by mitochondria: It was now mtFAS.
Veterans are spending thousands on retreats in central America where they take ayahuasca, a psychedelic drug one attendant called a “Hail Mary” for PTSD symptoms, according to The New York Times.
The psychedelic brew ayahuasca is being hailed as “a Hail Mary.”
In his keynote speech at Ending Age-Related Diseases 2020, Dr. Aubrey de Grey of SENS Research Foundation discusses the current state of the rejuvenation biotechnology industry in the context of the current pandemic. He mentions the failure of Unity Biotechnology’s Phase 2 clinical trial for osteoarthritis, COVID-19 and the elderly immune system, the current popularization of rejuvenation biotechnology, XPRIZE, and the steps that are currently being taken towards a world without age-related diseases.
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Intel’s Chief Architect, Raja Koduri, has presented a roadmap for increasing the number of transistors able to fit on a chip by a factor of 50.
During a keynote presentation at this year’s Hot Chips conference (held virtually), he described the ways in which computer technology can continue to shrink over the next 10 years – helping to sustain the famous trend known as Moore’s Law.
Continue reading “50-fold Increase in Transistor Density is Possible by 2030” »
KANSAS CITY, Mo. (WDAF) — A full moon with a special name given only once every three years will rise this week, according to the Farmer’s Almanac.
The Corn Moon is a full moon that rises in September. The September full moon is usually called the Harvest Moon because it is normally the closest full moon to the autumn equinox.
Every third year, however, a full moon comes in October that’s even closer, making the September full moon a Corn Moon.
