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Flexible, self-healing concrete

Flexible concrete | Blog | Futurismic

A handful of drizzly days would be enough to mend a damaged bridge made of the new substance. Self-healing is possible because the material is designed to bend and crack in narrow hairlines rather than break and split in wide gaps, as traditional concrete behaves.

“It’s like if you get a small cut on your hand, your body can heal itself. But if you have a large wound, your body needs help. You might need stitches. We’ve created a material with such tiny crack widths that it takes care of the healing by itself. Even if you overload it, the cracks stay small,” said Victor Li, the E. Benjamin Wylie Collegiate Professor of Civil Engineering and a professor of Materials Science and Engineering.

The geek arms race is on!

DIY coilgun gives clever hobbyists the risk of permanent injury

The bad boy pictured above was put together by a Mr. Daniel Eindhoven for €100 (that's about $133). A semiautomatic single stage gun that boasts a 14 shot capacity, the weapon's capable of firing a 42 gram projectile at speeds up to 110km/h, with a charge time of 8 seconds when plugged into mains power (or if you're on the go, the internal batteries will light up in about 90 seconds). It also sports a digital voltage display and a laser pointer.

May 06, 2009

How To: Make a Sonic Screwdriver

Sonic Screwdriver

Sneeze, the game

To Score High, Don’t Cover Your Mouth - NYTimes.com

The action starts with a schplouuush of green mucus hitting your screen, then switches to a street somewhere. Your avatar stands among pedestrians. The background noises are coughs, sneezes, noses being blown. Choose your moment, then tap the space bar to sneeze. Everyone hit by your spray turns green, then sneezes in turn, infecting others. How many are infected determines whether you go to the next level, which could be a train station, a factory floor or a nursery school.

Infecting a child is 5 points, an elderly person is 15.

“I sort of like it, but I think it’s really warped,” said an 8-year-old who noticed the game on Sunday when it reached the Top 10 on his favorite free children’s game site, www.miniclip.com.

May 05, 2009

Why text messages are limited to 160 characters

Why text messages are limited to 160 characters | Technology | Los Angeles Times

The answer? Because a German dude said so.

Alone in a room in his home in Bonn, Germany, Friedhelm Hillebrand sat at his typewriter, tapping out random sentences and questions on a sheet of paper.

As he went along, Hillebrand counted the number of letters, numbers, punctuation marks and spaces on the page. Each blurb ran on for a line or two and nearly always clocked in under 160 characters.

That became Hillebrand's magic number -- and set the standard for one of today's most popular forms of digital communication: text messaging.

"This is perfectly sufficient," he recalled thinking during that epiphany of 1985, when he was 45 years old. "Perfectly sufficient."

Man builds bridge between Metaplace and Second Life

Second Life Gateway for Metaplace - Cerebrate's Contemplations

How long before all our MMOs have portals between them?

So, my first scripted Metaplace object is written. Well, actually, it's not a scripted object, per se, visual design not exactly being my forte, but a behavior that can be plugged into other suitable objects, but what the hell, objects is objects.

Seeing as I'm now playing around in two virtual worlds, my first thought for a trivial project to do to get things going was some sort of bridge between the two, and so this is: this behavior lets you create an object in Metaplace, configure it with this behavior, and enter a location in Second Life (sim, X, Y and Z) as normal, and then using the object from within a Metaplace world will bring up slurl.com pointing at the targeted location so that you can one-click your way from there into SL.

50 People on Twitter Job Seekers should follow

50 People on Twitter Job Seekers should follow | ResumeBear Blog
The Twitter craze is just beginning to catch on at most Corporations. Most companies held back for various reasons but have now begun to incorporate Twitter and other Social Networks into their recruiting process. In the list below you will find some early adopters as well as a few newcomers to the twitter scene.
Also, tweets of employment ads from newspapers, recruiters, resume and job tips and advice.