Nextbigfuture has interviewed Ryan Weed, CEO of Positron Dynamics. Positron Dynamics is developing antimatter catalyzed fusion propulsion which they will first demonstrate in a cubesat launch. They are getting around the still mostly unsolved difficulties of storing antimatter. They are doing this by using Sodium 22 isotopes.
Positron Dynamics has previously received a lot of press coverage when it was funded by the Thiel Breakthrough foundation to work on antimatter.
Google could have a record of everything you have said around it for years, and you can listen to it yourself.
The company quietly records many of the conversations that people have around its products.
The feature works as a way of letting people search with their voice, and storing those recordings presumably lets Google improve its language recognition tools as well as the results that it gives to people.
For the first time, an experiment has directly imaged electron orbits in a high-magnetic field, illuminating an unusual collective behavior in electrons and suggesting new ways of manipulating the charged particles.
The study, conducted by researchers at Princeton University and the University of Texas-Austin was published Oct. 21, in the journal Science. The study demonstrates that the electrons, when kept at very low temperatures where their quantum behaviors emerge, can spontaneously begin to travel in identical elliptical paths on the surface of a crystal of bismuth, forming a quantum fluid state. This behavior was anticipated theoretically during the past two decades by researchers from Princeton and other universities.
“This is the first visualization of a quantum fluid of electrons in which interactions between the electrons make them collectively choose orbits with these unusual shapes,” said Ali Yazdani, the Class of 1909 Professor of Physics at Princeton, who led the research.
A Chinese electronics component manufacturer says its products inadvertently played a role in a massive cyberattack that disrupted major internet sites in the U.S. on Friday.
Hangzhou Xiongmai Technology, a vendor behind DVRs and internet-connected cameras, said on Sunday that security vulnerabilities involving weak default passwords in its products were partly to blame.
According to security researchers, malware known as Mirai has been taking advantage of these vulnerabilities by infecting the devices and using them to launch huge distributed denial-of service attacks, including Friday’s outage.
According to our best understanding of the Universe, if you travel back in time as far as you can, around 13.8 billion years or so, you’ll eventually reach a singularity — a super-dense, hot, and energetic point, where the laws that govern space-time breakdown.
Despite our best attempts, we can’t peer past that singularity to see what triggered the birth of our Universe — but we do know of only one other instance in the history of our Universe where a singularity exists, and that’s inside a black hole. And the two events might have more in common than you’ve ever considered, as physicist Ethan Siegel explains over at Forbes.
It might sound a little crazy, but, as Siegel reports, from a mathematical perspective, at least, there’s no reason that our own Big Bang couldn’t have been the result of a star collapsing into a black hole in an alternate, four-dimensional universe.
