Ultra-powerful radio bursts may be getting a cosmic boost — The Very Large Array spotted a repeating radio burst that continues to puzzle astronomers. So-called fast radio bursts are enigmatic, ultra-brief, ultra-powerful bursts of energy coming from distant galaxies. They last for only a fraction of a second, but in that time they emit the energy of perhaps 500 million suns. Their power and brevity have created an astrophysical puzzle: What could possibly be making such blasts?
James Cordes, an astronomer at Cornell University, thinks he can help explain not only the power of these repeating bursts, but also the seeming irregularity of their eruptions: clouds of charged gas, or plasma, in an FRB’s host galaxy could magnify the burst by as much as a factor of 100.
~ I see a great future for these plasma lenses.
The ‘Kilanova’ — On August 17, 2017, over 70 observatories around and above the world, including ones like LIGO and the Hubble Space Telescope, all spotted a flash of energy. This light came in many different flavours, and was consistent with a pair of dense neutron stars colliding in a cataclysmic ‘kilonova’ explosion.
So what did we learn from it?
~ Ah those binary star mergers! It will be a monopoly.
First mass-produced electric truck — Japan’s Mitsubishi Fuso Truck and Bus has unveiled what it says is the world’s first mass-produced electric truck, as automakers around the world go all out to develop cars that run on battery power. The vehicle can carry about 3 tons of cargo and travel about 100 kilometres on a single charge. The truck, unveiled on Thursday, will be used by Japan’s largest convenience store chain, Seven-Eleven.
~ Just chuck some spare batteries in the glovebox for emergencies.
For the love of robots — In summer 2002, mid-morning in a university research lab on the edge of Osaka, Japan, two girls were dressed in pale yellow, with child-puffy cheeks, black shoulder-length hair, and bangs. They stood opposite each other under fluorescent lights.
More precisely: one was a girl, 5 years old; the other was her copy, her android replica. Things have come a long way since then…
~ I’d prefer an iOS replica, obviously.
Optical fibre network could be a giant earthquake sensor — Researchers at Stanford have demonstrated they can use ordinary, underground fiber optic cables to monitor for earthquakes, by using innate impurities in the fiber as virtual sensors. They plan a larger test installation in 2018. Their biggest challenge, they say, will not be perfecting the algorithms but convincing telcos to allow their sensor technology to piggyback on existing telecommunications lines.
~ Er, your voice is shaky …
Whales and dolphins grew big brains coz peer pressure — The human brain has evolved and expanded over millennia to accommodate our ever-more-complex needs and those of our societies. This process has given us the big brain we need to communicate, cooperate, reach consensus, empathize, and socialize. The same is true for cetaceans, like whales and dolphins, it seems. These sea creatures also grew big brains in order to better live in societies, according to a study published on Oct. 16 in Nature Ecology & Evolution.
~ Unfortunately, we live tenuously these days by the grace of those with small brains.
Australian army turns to VR for resilience training — In an effort to help troops with the psychological stress of deployment, University of Newcastle will lead a $2.2 million project to explore what uses virtual reality can have in resilience training.
Christopher Pine, Minister for Defence Industry, has announced $2.2 million of funding by the Defence Science Technology Group and the Australian Army to explore how stress changes the way the brain works.
~ I’m not sure if being virtually resilient will translate to being actually resilient.