Dec 13

MIT builds camera that can capture at the speed of light (video)

Posted in: laser, mit, Today's Chili, video
A team from the MIT media lab has created a camera with a “shutter speed” of one trillion exposures per second — enabling it to record light itself traveling from one point to another. Using a heavily modified Streak Tube (which is normally used to intensify photons into electron streams), the team could snap a single image of a laser as it passed through a soda bottle. In order to create the slow-motion film in the video we’ve got after the break, the team had to replicate the experiment hundreds of times. The stop-motion footage shows how light bounces through the bottle, collecting inside the opaque cap before dispersing. The revolutionary snapper may have a fast shutter but the long time it takes to process the images have earned it the nickname of the “the world’s slowest fastest camera.”

[Image courtesy of MIT / M. Scott Brauer]

Continue reading MIT builds camera that can capture at the speed of light (video)

MIT builds camera that can capture at the speed of light (video) originally appeared on Engadget on Tue, 13 Dec 2011 06:33:00 EDT. Please see our terms for use of feeds.

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Dec 12

Researchers build world’s smallest steam engine that could

Posted in: concept, germany, laser, research, Today's Chili
Wanna create your very own microscopic steam engine? Just take a colloid particle, put it in water, and add a laser. That’s a CliffsNotes version of what a group of German researchers recently did to create the world’s smallest steam engine. To pull it off, engineers from the University of Stuttgart and Max Planck Institute for Intelligent Systems tweaked the traditional approach introduced by Robert Stirling nearly 200 years ago. In Stirling’s model, gas within a cylindrical tube is alternately heated and cooled, allowing it to expand and push an attached piston. Professor Clemens Bechinger and his team, however, decided to downsize this system by replacing the piston with a laser beam, and the cylinder’s working gas with a single colloid bead that floats in water and measures just three thousandths of a millimeter in size. The laser’s optical field limits the bead’s range of motion, which can be easily observed with a microscope, since the plastic particle is about 10,000 times larger than an atom. Because the beam varies in intensity, it effectively acts upon the particle in the same way that heat compresses and expands gas molecules in Stirling’s model. The bead, in turn, does work on the optical field, with its effects balanced by an outside heat source. The system’s architects admit that their engine tends to “sputter” at times, but insist that its mere development shows that “there are no thermodynamic obstacles” to production. Read more about the invention and its potential implications in the full press release, after the break.

Continue reading Researchers build world’s smallest steam engine that could

Researchers build world’s smallest steam engine that could originally appeared on Engadget on Mon, 12 Dec 2011 13:29:00 EDT. Please see our terms for use of feeds.

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Nov 01

NASA developing tractor beams, no plans for Death Star… yet (video)

Posted in: laser, NASA, research, science, space, Today's Chili, video

Fully functional LightSabre aside, a tractor beam has to be high on most geek wish-lists; lucky for you NASA has started working on one. Before you drop your sandwich (or whatever that object in your left hand is), this won’t be for sucking up star cruisers, but the more modest task of sample and space dust collection. The basic concept has already been proven, but now NASA’s Office of the Chief Technologist has given boffins $100,000 to make the dream a reality. Three potential methods are already on the table, which in lay-terms resemble laser tweezers, a light vortex and a conceptual rippling beam. Once developed, it could signal the end of traditional mechanical sample collecting — and just plain luck — consigning robotic arms to the history books. Check the video after the break for science-tastic mock up of how it might work.

Continue reading NASA developing tractor beams, no plans for Death Star… yet (video)

NASA developing tractor beams, no plans for Death Star… yet (video) originally appeared on Engadget on Wed, 02 Nov 2011 00:48:00 EDT. Please see our terms for use of feeds.

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Oct 26

Insert Coin: PhaserTape turns your smartphone into a rangefinder (video)

Posted in: diy, laser, Today's Chili, video

In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you’d like to pitch a project, please send us a tip with “Insert Coin” as the subject line.

You’ve scoped that little laser dot on the cabinet at the far end of the room, right? Well, don’t worry, you’re not about to see an innocent stationery cupboard get perforated by a sniper. Nope, this episode of Insert Coin is actually about measuring distances using PhaserTape — a peace-loving iOS- and Android-compatible peripheral that needs your help over at Makible. We think it could be a sweet little investment, and you only have to click past the break to discover why.

Continue reading Insert Coin: PhaserTape turns your smartphone into a rangefinder (video)

Insert Coin: PhaserTape turns your smartphone into a rangefinder (video) originally appeared on Engadget on Wed, 26 Oct 2011 13:12:00 EDT. Please see our terms for use of feeds.

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Oct 16

Pointing a laser at a police helicopter is a very bad idea

Posted in: laser, Today's Chili

Laser pointers seem to get more popular the brighter they get. A good example is the latest product from Wicked Lasers called the S3 Krypton that is 8,000 times brighter than the sun and has a range of 85 miles. The question I always have to ask is what use are they on a daily […]

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Oct 10

This giant military spy blimp is really hard to miss

Posted in: laser, military, minipost, Today's Chili, wargadget
What’s this spy blimp doing next to an 18-wheeler? We’re not entirely sure, but it’s certainly not being subtle about it. This jumbo-sized floater, codenamed “Blue Devil Block 2,” measures some 370 feet in length and comprises a whopping 1.4 million cubic feet. Originally inflated in September, the definitely-not-blue Blue Devil took flight for the first time last week in North Carolina and, if all goes to plan, should head to Afghanistan by the middle of next year. The Air Force says the blimp will hover above the country for five days at a time, collecting surveillance data from 20,000 feet above the ground and transmitting its findings to US intelligence officers on the ground, via laser. When that’s taken care of, it’ll be used to make the biggest omelette ever.

This giant military spy blimp is really hard to miss originally appeared on Engadget on Mon, 10 Oct 2011 19:10:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceWired  | Email this | Comments

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Sep 22

RED CEO teases 4K 3D laser projector, bound for theaters and (millionaires’) homes

Posted in: hdpostcross, laser, projector, Today's Chili

Red LogoWe all love RED — the company puts out some of the best pro-quality digital video cameras on the market. But, what about the other side of that equation? All of that 4K footage is worthless without something to watch it on. CEO Jim Jannard, notorious for his ability to build hype and mystery, took to the REDUser Forums to tease some details about an upcoming 4K, 3D laser projection system that will be targeted at both homes (presumably well off ones) and theaters. Details about the projector are still scarce, but we do know it won’t be using TI’s 4K DLP chip, and that it will rely on passive 3D tech rather than active, which Jannard said “landed in the La Brea Tar Pits.” The image is apparently so bright and clear that it left Stephen Pizzo, co-founder Element Technica, “speechless.” We just have one question: when can we expect our review unit?

RED CEO teases 4K 3D laser projector, bound for theaters and (millionaires’) homes originally appeared on Engadget on Thu, 22 Sep 2011 11:12:00 EDT. Please see our terms for use of feeds.

Permalink This is my next, SlashGear  |  sourceREDUser Forum  | Email this | Comments

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Sep 19

New bomb-sniffing laser could be used to locate IEDs

Posted in: laser, Today's Chili, wargadget

We’ve already seen lasers with the potential to spot explosives, and now a team of researchers is focusing its beams on roadside bomb detection. Chemistry professor Marcos Dantus of Michigan State University has led the production of a laser that has the “sensitivity and selectivity” to accurately identify improvised explosive devices. This particular bomb-sniffing laser emits short pulses that make molecules vibrate and longer pulses used to “listen” to the resulting “vibrational cords,” these so-called cords are used to distinguish telltale molecules from the harmless sort. The research is being funded in part by the Department of Homeland Security. Full PR after the break.

Continue reading New bomb-sniffing laser could be used to locate IEDs

New bomb-sniffing laser could be used to locate IEDs originally appeared on Engadget on Mon, 19 Sep 2011 18:40:00 EDT. Please see our terms for use of feeds.

Permalink Physorg  |  sourceMichigan State University  | Email this | Comments

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Sep 06

BMW developing laser headlights, officially over LEDs

Posted in: automobile, car, Cars, laser, LED, Today's Chili

We know, our whip doesn’t have LED headlights either, but that’s not stopping BMW from pressing on with its laser powered successor. Purportedly ready “within a few years,” the updated beams boast an intensity a thousand times greater than their forebearers, all while consuming less than half the power — helping EV drivers eke out a little more range. With each laser diode one hundred times smaller than its LED counterpart, Bavaria reckons the tech will help it design and package future light fixtures that are more bodacious than those from its competition in Ingolstadt. There’s no firm date for availability, but the company says the new lighting tech will debut on the production version of its i8 concept. Sounds great, so where do we sign up for our frickin’ laser bimmer?

Continue reading BMW developing laser headlights, officially over LEDs

BMW developing laser headlights, officially over LEDs originally appeared on Engadget on Tue, 06 Sep 2011 07:32:00 EDT. Please see our terms for use of feeds.

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Sep 05

Wicked Lasers’ S3 Krypton laser is bright enough to blind astronauts (video)

Posted in: laser, Today's Chili, video
Wicked Lasers S3 Krypton

If you ever plan to lead a PowerPoint presentation projected on giant white board orbiting the Earth (we’ll leave the logistics of that one up to you) there’s only one laser that will get the job done — Wicked Lasers‘ S3 Krypton. The Guinness Record-pending laser produces about 86 million lux and can be seen from up to 85 miles away, well beyond the edge of our atmosphere. Of course, at roughly 8,000-times the brightness of the Sun, serious safety precautions are needed when operating the S3. Goggles are a must (and bundled with the handheld laser), while sensors and a microprocessor regulate current to keep the tube of aluminum from overheating in your hands. The top end model is available now for $1,000 but, if blinding astronauts isn’t on your agenda, lower-powered versions can be had starting at $300. Check out the video after the break.

Continue reading Wicked Lasers’ S3 Krypton laser is bright enough to blind astronauts (video)

Wicked Lasers’ S3 Krypton laser is bright enough to blind astronauts (video) originally appeared on Engadget on Mon, 05 Sep 2011 23:41:00 EDT. Please see our terms for use of feeds.

Permalink SlashGear  |  sourceWicked Lasers  | Email this | Comments

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