About 8% of the male population has some sort of color vision deficiency. The color blind are unable to clearly distinguish different colors of the spectrum, they tend to see colors in a limited range of hues. Because of this, the color blind have trouble with a lot of websites. The patterns and examples on We Are Color Blind help developers create websites the color deficient can use with minimal problems. Take a color vision test to see where you stand. 50 facts about color blindness.
posted by netbros on Sep 28, 2009 - 93 comments

FCC paves way for free use of vacant airwaves -- white space -- available in February as TV spectrum is cleared up by digital conversion. Apparently another vote for change will take place November 4. The FCC btw also recently backed a free (ad-supported) nationwide wireless broadband plan in another hunk of spectrum to be auctioned off in 2009.
posted by kliuless on Oct 18, 2008 - 19 comments

The current issue of IEEE Spectrum devotes itself to the sci-fi genre du jour, the Singularity. Neuroscientists such as Christof Koch and David Alder talk about our understanding of the brain and quantum computing, John Horgan argues that it's just too difficult to recreate consciousness in a computer any time soon. Robin Hanson writes on the Economics of the Singularity, and of course, Vernor Vinge - the person who originally postulated the Singularity - tells us how to spot its approach. [more inside]
posted by adrianhon on Jun 3, 2008 - 145 comments

The On Machine. A giant audio spectrum analyzer. A bargain at only € 6000. (via)
posted by metasonix on Aug 1, 2007 - 20 comments

The Electromagnetic Spectrum via
posted by lazaruslong on Jun 6, 2007 - 30 comments

ZX Spectrum Game Walkthrough videos. For those that, like me, have read that Jet Set Willy can be done, but never really believed it. Also, Manic Miner, Skool Daze, Sabre Wulf and Atic Atac constitute must-see viewing to the would-be Sinclair completist. Via GameSetWatch.
posted by nthdegx on Feb 4, 2006 - 17 comments

Study into use of profanity in Sinclair ZX Spectrum text adventures
posted by Pretty_Generic on Nov 12, 2004 - 6 comments

A nice article on some of the engineering and economics aspects of WiFi, and the history of frequency regulation in the USA.
posted by freebird on Aug 16, 2004 - 9 comments

you know, you're right... it really does look like my morning coffee. but wait just a minute, didn't we say it was more of a blue-green Tidy-Bowl kind of hue? now i am all confused. good thing i didn't go through with that "paint my house the color of space" idea...
posted by grabbingsand on Jun 24, 2002 - 14 comments

Tell Congress you want Low Power Radio! There is a bill before the Senate that would gut the FCC's ability to license low power radio. Click the link to tell your reps that you think S3020, which prohibits LPR, should be voted down. We like free speech here, right? We like having the right to use our own airwaves, right? Click the link, type in your ZIP and spread some legislative love, babies.
posted by RakDaddy on Oct 11, 2000 - 20 comments