The thermoelectric generator harnesses the flow of heat between two surfaces — one exposed to the cold sky at night. It could be the nocturnal cousin of solar power, lighting the lives of the 1.7 billion people worldwide living with an unreliable electricity connection.
If a drop of creamer falls from a spoon into a swirling cup of coffee, the whirlpool drags the drop into rotation. But what would happen if the coffee had no friction—no way to pull the drop into a synchronized spin?
A new UC San Francisco study has pinpointed a specific pattern of brain waves that underlies the ability to let go of old, irrelevant learned associations to make way for new updates. The research is the first to directly show that a particular behavior can be dependent on the precise synchronization of high-frequency brain waves in different parts of the brain, and might open a path for developing interventions for certain psychiatric disorders, including schizophrenia.
Some people look at an equation and see a bunch of numbers and symbols; others see beauty. Thanks to a new tool created at Carnegie Mellon University, anyone can now translate the abstractions of mathematics into beautiful and instructive illustrations.
Researchers at the Kastler Brossel Laboratory in Paris have succeeded in implementing a novel “hybrid” entanglement swapping protocol, bringing within reach the connection of disparate platforms in a future, heterogeneously structured, quantum internet.
It is often thought that humans are different from other animals in some fundamental way that makes us unique, or even more advanced than other species. These claims of human superiority are sometimes used to justify the ways we treat other animals, in the home, the lab or the factory farm.
To distinguish between fundamentally different objects, mathematicians turn to invariants that encode the objects’ essential features.
The Navy is also developing a family of unmanned surface vessels that are intended to increase the offensive punch for less money, while increasing the number of targets the Chinese military would have to locate in a fight.
That’s a push that earned the endorsement of Chief of Naval Operations Adm. Michael Gilday in comments late last year.
“I know that the future fleet has to include a mix of unmanned,” Gilday said. “We can’t continue to wrap $2 billion ships around 96 missile tubes in the numbers we need to fight in a distributed way, against a potential adversary that is producing capability and platforms at a very high rate of speed. We have to change the way we are thinking.”
The new stealth U.S. Air Force B-21 bomber has taken yet another key technological step toward being ready for war, through integrated computer automation designed to streamline information, improve targeting and offer pilots organized warzone information in real-time.
Air Force and Northrop Grumman developers recently completed an essential software-empowered process intended to bring greater levels of information processing, data management and new measures of computerized autonomy, according to published statements from Air Force Acquisition Executive Dr. William Roper.
