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Science

Invisibility Cloak Created In 3-D 113

Posted by kdawson from the can-you-see-me-now dept.
An anonymous reader writes "Scientists have created the first device to render an object invisible in three dimensions. The 'cloak,' described in the journal Science (abstract; full text requires login), hid an object from detection using light of wavelengths close to those that are visible to humans. Previous devices have been able to hide objects from light travelling in only one direction; viewed from any other angle, the object would remain visible. This is a very early but significant step towards a true invisibility cloak." The "object" hidden in this work was a bump one micrometer high. The light used was just longer than the wavelengths our eyes detect. To get a visible-light cloak, the features of the cloaking metamaterial would need to be reduced in size from 300 nm to 10 nm.

Comment Re:Two questions.... (Score 1) 268

by Loomismeister (#31181064) Attached to: <em>StarCraft II</em> Closed Beta Begins

No one cares if you change your mind. It was an understandable misconception about LAN play that caused you to want to boycott it, and now that blizzard basically crushed every one of your arguments -- you should go buy the game. There is literally no reason why you should be upset with anything they are doing in terms of multiplayer and LANning , unless you are really out in the middle of no where and can't get internet. (Blizzard already said they would work on sending private workable copies to people who legitimately cannot get internet)

Any anger about lack of isolated from the internet play is rooted in fallacy and misconception; the general public (along with most people who signed that petition you linked) will buy this great game. For good reason too!
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Crazy Firewall Log Activity — What Does It Mean? 344

Posted by kdawson from the mainly-on-the-plane dept.
arkowitz writes "I happened to have access to five days worth of firewall logs from a US state government agency. I wrote a parser to grab unique IPs out, and sent several million of them to a company called Quova, who gave me back full location info on every 40th one. I then used Green Phosphor's Glasshouse visualization tool to have a look at the count of inbound packets, grouped by country of origin and hour. And it's freaking crazy looking. So I made the video of it and I'm asking the Slashdot community: What the heck is going on?"

Nano-Scale Robot Arm Moves Atoms With 100% Accuracy 266

Posted by ScuttleMonkey from the human-tetris-anyone? dept.
destinyland writes "A New York professor has built a two-armed nanorobotic device with the ability to place specific atoms and molecules where scientists want them. The nano-scopic device is just 150 x 50 x 8 nanometers in size — over a million could fit inside a single red blood cell. But because of its size, it's able to build nanoscale structures and machines — including a nanoscale walking biped and even sequence-dependent molecular switch arrays!"

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