Here's what you need ... a Laser Gatling Gun

Here's what you need ... a Laser Gatling Gun: "Patrick Priebe, the German laser weapons hobbyist who previously brought us such creations as the Iron Man Gauntlet and the Plasma Cutter, has gone and made something else. This time around, he’s built a proof-of-concept Laser Gatling Gun."

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Scientists developing a seawater-desalination chip

Scientists developing a seawater-desalination chip: "Although various alternative technologies are being developed, the large-scale desalination of seawater typically involves forcing it through a membrane that allows the water to pass through, but that traps the salt. "

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DFP kayak features retractable pontoons

DFP kayak features retractable pontoons: "Compared to human-powered watercraft such as canoes or rowboats, kayaks are certainly fast, plus they’re easy to paddle. Should you try to stand up and fish or scuba dive from one, however, it’s quite likely to capsize. With that in mind, California-based TrueRec has designed the DFP (Dive-Fish-Paddle) sit-on-top kayak. It features spring-loaded pontoons that fold out to the sides and lock in place for added stability when stopped, but that otherwise stay tucked in and out of the way."

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Test drive: Audi R8 V10 plus

Test drive: Audi R8 V10 plus: "The last time I drove Audi’s R8 was in 2008. It had the same 309kW 4.2-litre V8 Audi was using in some of its RS models, married to a six-speed manual transmission. While it proved predictably quick and agile in its element, just as important was that it passed the test so many supercars have stumbled over through history: navigating the bumper-to-bumper of crowded city streets. No all-or-nothing in heavy traffic, no thigh workout on the clutch pedal. The R8 proved as easy to live with as an A4. At least until you arrived at Ikea or a potted-palm store."

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