scienceisbeauty:

Smith Chart visual representation of interaction between resistive and reactive components.

(Via Wikimedia Commons)

cosmicwolfstorm:

Artwork by by Vladimir Manyuhin

cosmicwolfstorm:

Artwork by by Vladimir Manyuhin

bpod-mrc:

30 July 2014

Bio-bots Are Coming

Think of a robot and you probably imagine something made of metal and wires. But scientists are now exploring the softer side of robotics, developing devices made from squishy biological materials that adapt quickly to the environment around them. These bio-bots, as they’re known, could transform the robots of the future. A team of US researchers has used 3D printing to create a tiny soft ‘skeleton’ made of a special gel. This is then impregnated with mouse muscle stem cells, which grow into a sheet of strong muscle cells (pictured) to provide power and movement. Normally, muscle cells in the body respond to electrical signals, and it’s the same here: an electrical zap gets the bio-bot crawling along like an inchworm. It’s pretty slow – just a fraction of a millimetre per second – but this technology could one day lead to revolutionary biological machines.

Written by Kat Arney

Image by Rashid Bashir and colleagues
University of Illinois at Urbana–Champaign, USA
Originally published under a Creative Commons Licence (BY 4.0)
Research published in PNAS, July 2014

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goldandcats:

Dope as fuck

goldandcats:

Dope as fuck

(Source: tenkaichibudokai)

(Source: jump-gate)

"Wal-Mart earned $27 billion in profit last year. They could afford to pay their bottom million workers $10,000 more a year, raise all of those people out of poverty, cost — save taxpayers billions of dollars, and still earn $17 billion in profit, right? It’s simply nuts that we have allowed this to happen. […] You know, this ridiculous idea that a worker on Wall Street who earns tens of millions of dollars a year securitizing imaginary assets or doing high-frequency trading is worth 1,000 times as much as workers who earn tens of thousands of dollars a year educating our children, growing or serving us our food, throwing themselves into harm’s away to protect our life or property, that this difference reflects the true value or intrinsic worth of these jobs is nonsense."

(Source: s-h-e-e-r)