Search Results for “https:” – Page 632

Dozens of British universities join the online education revolution

“Dozens of British universities began offering free online courses on Wednesday through a collective portal, joining a global trend started in the United States that opens higher education to the masses. Pre-registration opened on Tuesday and in one day 20,000 people from 158 different countries signed up — even though the portal site will not be completed for several months. Until then it will run in beta phase, without all the finishing touches, so organisers can see how it works. The scheme brings British universities in line with many of their rivals in the United States, where so-called massive open online courses (MOOCs) are hugely popular.” Continue reading →

Yahoo Japan develops 3D search engine-printer

“Yahoo Japan Corp. has developed a voice-activated Internet search that links to a 3D printer, letting users look online for blueprints to deliver solid objects in a few minutes, the company said. The search engine scours the Internet for information that it can use to print palm-sized renderings of items as diverse as hippopotamuses or fighter jets. Heralded as a technology that is potentially as game-changing as the steam engine was in its day, 3D printers have become a more commonplace reality over the last few years.
The devices use slices of information about a three-dimensional object and gradually deposits fine layers of material — such as plastic, carbon or metal — to build a copy.” Continue reading →

Researchers create battery that recycles sewage into energy

“They hope their technique could be used in wastewater treatment facilities and to break down organic pollutants in the ‘dead zones’ of oceans and lakes where fertilizer runoff has depleted oxygen, suffocating marine life. However, for now the team from Stanford University have started small, with a prototype about the size of a D-cell battery, consisting of two electrodes — one positive and one negative — plunged into a bottle of wastewater, filled with bacteria. As the bacteria consume the organic material, the microbes cluster around the negative electrode, throwing off electrons, which are captured in turn by the positive electrode.” Continue reading →

Make your life easier: 10 useful 3D printed things

“It feels like time runs faster and faster every day. And as life accelerates, the need to save time gets more acute. So let’s take a look at ten 3D-printed items to make life easier.” Continue reading →

NASA: Voyager 1 becomes first spacecraft to leave our solar system

“NASA’s Voyager 1 probe has now left the solar system and is wandering the galaxy, US scientists said Thursday. The spacecraft was launched in 1977 on a mission to explore the outer planets of our solar system and to possibly journey into the unknown depths of outer space. US space agency scientists now agree that Voyager is officially outside the protective bubble known as the heliosphere that extends at least eight billion miles beyond all the planets in our solar system, and has entered a cold, dark region known as interstellar space. Voyager’s instruments will have to shut down permanently in 2025, Science reported. NASA spends $5 million per year to operate the twin spacecraft.” Continue reading →

Johns Hopkins researchers reverse Down syndrome in mice

“U.S. researchers said Wednesday they have found a way to reverse Down syndrome in newborn lab mice by injecting an experimental compound that causes the brain to grow normally. The team at Johns Hopkins University used lab mice that were genetically engineered to have extra copies of about half the genes found on human chromosome 21, leading to Down syndrome-like conditions such as smaller brains and difficulty learning to navigate a maze. ‘It worked beautifully,’ said lead author Roger Reeves of the Johns Hopkins University School of Medicine. ‘We were able to completely normalize growth of the cerebellum through adulthood with that single injection.'” Continue reading →

4-D Printing: The Solution to a $350 Billion Problem?

“Tibbits is working more than a tad bit with a Boston company called Geosyntec to develop a new paradigm in water infrastructure. Rather than use fixed-capacity water pipes, they’re experimenting with nanoscale adaptive materials built from the environment. 4-D printing with adaptive pipes to correct our water piping reminds me a lot of how human veins expand and contract to accommodate blood flow. The 4-D printing solution is similar. ‘Imagine if water pipes could expand or contract to change capacity or change flow rate,’ Tibbits said in a recent TED talk. ‘Or maybe [they] undulate like peristaltics to move the water themselves,’ he said.” Continue reading →

Richard’s $2 Billion Dollar (Severed) Hand

“Richard Van As, a South African carpenter, lost four of his fingers to a circular saw, reports The Associated Press. An artificial limb — one that could detect the muscles’ electrical impulses and move — would have cost him tens of thousands of dollars. Sadly, he was unable to afford that. Soon after, Van As teamed with an Ivan Owen from Seattle. 10,000 miles separated Van As in Johannesburg from Owen. But with the help of two 3-D printers donated by MakerBot, the two created their own “Robohand” prosthetic. They were able to cut the prototyping time from a week to just 20 minutes. And the cost? Just $500… more than a 95% discount.” Continue reading →