FedEx is testing a new powertrain that makes its trucks into electric vehicles with onboard diesel generators.The post FedEx’s New Electric Trucks Get a Boost From Diesel Turbines appeared first on WIRED.
The Rochester “Invisibility” Cloack
Scientists at the University of Rochester have discovered a way to hide large objects from sight using inexpensive (less than $100) and readily available lenses.
Snip from Reuters:
The so-called Rochester Cloak is not really a tangible cloak at all. Rather the device looks like equipment used by an optometrist. When an object is placed behind the layered lenses it seems to disappear.
Previous cloaking methods have been complicated, expensive, and not able to hide objects in three dimensions when viewed at varying angles, they say.
"From what, we know this is the first cloaking device that provides three-dimensional, continuously multidirectional cloaking," said Joseph Choi, a graduate student who helped develop the method at Rochester, which is renowned for its optical research.
In their tests, the researchers have cloaked a hand, a face, and a ruler – making each object appear “invisible” while the image behind the hidden object remains in view. The implications for the discovery are endless, they say.
"I imagine this could be used to cloak a trailer on the back of a semi-truck so the driver can see directly behind him," Choi said. "It can be used for surgery, in the military, in interior design, art."
Don’t miss the behind-the-pysics video from University Rochester: How Does Cloaking Work in the Real World?
For companies like Uber and Airbnb, some of the most important fights are being fought in cities that champion new technology.
It’s like Startup Thunderdome! Two startups enter, one startup leaves!
NOVA’s Tim De Chant posted this awesome photo of the Kilby Solid Circuit, the first working example of a miniaturized electric circuit that combined all the necessary structures onto a single chip. Back in 2000, when he won the Nobel Prize for this achievement, inventor Jack Kilby gave a really nice talk about the history of electronics and the context that lead to his creation. It’s definitely worth a read.