An anonymous reader writes “Today China continued rolling out the future of high speed rail by officially unveiling the world’s longest high-speed rail line — a 2,298-kilometer (1,428-mile) stretch of railway that connects Beijing in the north to Guangzhou in the south. The first trains on the new route hit 300 kph (186 mph), cutting travel time between the two cities by more than half.” Read more of this story at Slashdot.
Taken from:
World’s Longest High-Speed Rail Line Opens In China
In November of 2011, American commercial airlines consumed 48.3 million gallons of fuel— every day —and paid a total of $49.8 billion that month to do so. And with increasingly tight operating budgets, fuel efficiency has quickly become a primary concern for the airlines. Boeing thinks one possible solution is its new plug-in hybrid jet concept that burns 70 percent less gas per flight with the help of the local power grid. More »
See the article here:
Boeing’s Concept SUGAR Plane Plugs In Like a Prius
Enlarge / Meet the latest quantum dot assembly factory. Colorado State Quantum dots are nanoscale-sized pieces of semiconductor. Their small size ensures that quantum effects, like the Pauli exclusion principle, influence the behavior of electrons within them. This gives the dots properties that a bulk material with the same composition lacks, and it makes them appealing candidates for things like tiny lasers, photovoltaic materials, and LEDs. Another area where they’ve shown promise is medical imaging. In terms of absorbing and emitting light, quantum dots behave much like the fluorescent molecules we can use to label cells of interest. But, since their fluorescent properties depend on the shape of the particles rather than the chemical structure of a molecule, they are much less prone to undergoing reactions that destroy their fluorescence. The problem is that most semiconductors aren’t especially biocompatible, meaning additional chemical reactions need to be performed before the dots can attach to or enter cells. Some researchers have started to look towards making the dots in biological systems, figuring that the output would necessarily be biocompatible. After some successes with bacteria and yeast, they’ve moved on to a larger target: the earthworm. And it appears to work very well. Read 6 remaining paragraphs | Comments
Read the original:
Earthworm guts become factory for nanoparticles
Robots are so commonplace now that we use them to entertain kids at amusement parks. But even though modern technology has given us artificial lifeforms that can walk, talk, and even fly, there’s still something utterly fascinating about pre-electronic mechanical automatons like this Vers de Soie caterpillar dating back to 1820. More »
Visit link:
This 200-Year-Old Mechanical Caterpillar Does Everything But Turn Into a Butterfly
The Electronic Frontier Foundation recaps two court cases pending in the U.S. which will decide whether you’re allowed to re-sell the things you purchase. The first case deals with items bought in other countries for resale in the U.S., such as textbooks. An unfavorable decision there would mean “anything that is made in a foreign country and contains copies of copyrighted material – from the textbooks at issue in the Kirtsaeng case to shampoo bottles with copyrighted labels – could be blocked from resale, lending, or gifting without the permission of the copyright owner. That would create a nightmare for consumers and businesses, upending used goods markets and undermining what it really means to ‘buy’ and ‘own’ physical goods. The ruling also creates a perverse incentive for U.S. businesses to move their manufacturing operations abroad. It is difficult for us to imagine this is the outcome Congress intended.” The second case is about whether music purchased on services like iTunes can be resold to other people. “Not only does big content deny that first sale doctrine applies to digital goods, but they are also trying to undermine the first sale rights we do have by forcing users to license items they would rather buy. The copyright industry wants you to “license” all your music, your movies, your games — and lose your rights to sell them or modify them as you see fit.” Read more of this story at Slashdot.
Read More:
Defending the First Sale Doctrine