What runs on a PC, requires serious amounts of skill and generates enormous amounts of smoke and gore? Nope, we don't mean the latest first-person shooter.
We're talking about a doctor simulator. Thanks to Suvranu De at the Rensselaer Polytechnic Institute in New York, surgeons can now accurately simulate those precious moments when they accidentally cut through the wrong bit and set the patient on fire.
Speaking to New Scientist (opens in new tab), De explains: "Intra-abdominal tissue has a very high density of blood vessels. When a cauterising device cuts it, copious amounts of smoke are generated and bleeding may occur. These effects are hard to incorporate in a simulation."
BURNING UP: Surgeons! If your operating table looks like this, you're doing it wrong! [Image credit: wwarby/flickr]
De's solution? Pre-programmed visual effects that make the simulators much more realistic and which hopefully prepare surgeons for any eventuality.
Water good idea
Remember the underwater Terminators in Rise of the Machines? Thanks to Professor Malcolm McIver, they might not be science fiction for much longer. Professor McIver's robot fish (opens in new tab), Ghostbot, uses robotics to mimic the movements of real-life fish. The long-term plan is to develop incredibly manoeuvrable vehicles that are as agile as their aquatic inspiration.
The colour purple
You'd think that with all the woes in the world, turning gold purple would be fairly low on scientists' to-do lists - but it turns out that messing with precious metals could help develop green energy sources.
Professor Richard Watt and his students found that by mixing citric acid with a common protein, they could change gold powder's colour; doing that proved that there was a transfer of energy, which could be used to power a battery or fuel cell.
NOT GOLD: Purple gold? Somewhere in Minneapolis, Prince is smiling [Image credit: drb62/flickr]
Physorg.com reports that Professor Watt's family has form in this area: his father invented a fuel cell that ran on sugar and weedkiller.
Sail of the century
Good news for those of us who look at the sky and think "sheesh, what a mess!" - NASA may have found the answer to the orbiting junk left behind by countless satellite launches. This week, NASA's NanoSail-D spacecraft unveiled a solar sail, which is used to propel it around the Earth as lead investigator Dean Alhorn cried "We're solar sailing!"
HELLO SAILOR: NASA's solar sail could mean the end of orbiting junk [Image credit: NASA]
Such sails could be fitted to satellites to stop them hanging around forever: when their time is up they'd unfurl their sail and let it drag them back to Earth.
Blowing safes open with dynamite is so twentieth century. When Kyle Vogt wanted to know if an old safe contained "cool stuff like gold coins, ancient relics or even mummified body parts" the MIT student roped in a friend and built a safe cracking robot.
BANK BUSTER: This robotic safecracker can bypass human-proof locks [Image credit: Kyle Vogt]
Rather alarmingly, the resulting robot was able to crack a supposedly uncrackable lock, the S&G 8400. When Skynet finds out about this, we're in trouble.
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