Showing posts with label technology progress. Show all posts
Showing posts with label technology progress. Show all posts

Sunday, March 10, 2013

Google Glass -- why just capture reality when you can mediate and improve it?

There is a lot of hype surrounding wearable computing these days and Google Glass gets a lot of that attention with demonstrations of video and image capture and augmented reality, as shown in this video, which has been viewed over 16 million times.

But University of Toronto professor Steve Mann has been wearing electronic glasses and working with mediated reality for over 30 years. Mann differentiates between "augmented reality," where text or graphics are displayed over your normal vision and more general "mediated reality," in which vision is improved -- for example, detecting infrared radiation to see temperature differences, zooming in on distant objects, or extending the dynamic range of a photographic image by combining various exposures. He discussed these applications and more in an recent Techwise Conversations podcast interview.

Mann has pioneered mediated reality, but he is not alone in the field. For example, professor Gabby Sarusi and his colleagues at the at Ben Gurion University of the Negev are working on a nano layer coating for detecting infrared radiation in night vision goggles. Work on high dynamic range photography has also been with us for some time.

Journalists are beginning to report on initial experience with Google Glass prototypes and Google is fishing around for a killer app, but I suspect that Google Glass will turn out to be a niche product. We will not be wearing them 24-7, but some of us may put them on for special tasks -- like a surgeon entering the operating room.

That being said, research prototypes and high-value niche applications have a way of turning into ubiquitous, game-changing products, but it takes a while -- as you see in this photograph of Ivan Sutherland, inventor Sketchpad, the first object oriented computer graphics program, which he developed more than twenty years before MacDraw came out. (Ditto, any early prototype).

What about fifty years from now? Will Google Glass 2063 interface directly with the retina?

Sunday, February 10, 2013

3D Printing technology marches on -- for better or worse

While Congress and the President and the NRA haggle over gun control laws, Defcad.org is distributing 3-D printing specs for guns and parts of guns.

Check the following video for a demonstration of a printed 30-round magazine for a semi-automatic weapon.



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Update, April 1

It may be an April Fool joke, but the Defcad,org web site has a notice saying the site and domain name have been seized by the Federal Government and Grand Jury indictments were issued.



Their latest video, which is still up on YouTube, announces Defcad Search:



The video shows off some guns with 3D-printed parts, denounces the intellectual property and promises Defcad Search, a search engine with CAD files from which there will be no takedowns, ever.


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Update 5/7/2013

Defcad.org has now released a complete, single shot pistol. You can read more about it in this Forbes article. Is this any more a threat than home made "zip" guns made from common hardware parts?

Update 5/10/2013

The State Department requested that Defcad stop distributing their pistol plans, which they did. However, they report that there had been over 100,000 downloads and a quick Google search turns up sites which are now offering copies. Once something is out, you cannot put it back.

Update 5/12/2013

Leland Yee, a California State Senator who is alarmed by 3D printing of guns, has called for regulations of 3D printers.

Update 5/24/2013

Moving away from the dark side -- Michigan Tech University is running a 3D printers for peace contest. It's your chance to win a 3D printer -- what would Mother Theresa have done with a smart printer?

Update 7/26/2013

The 3-D printed pistol is not yet ready for prime time.  Matt Ratto, a professor at University of Toronto printed a handgun -- it took  27 hours, a fair amount of computer know-how, a $50,000 printer, and $300 worth of plastic.  What will it cost in ten years?

Update 1/19/2014

Here is an article (with links) on a low-cost, open-source 3D metal printer from Michigan Technological University. It's a work in progress, but it is less expensive than off-the-shelf commercial plastic 3D printers.