demo - Dave's Blog

 “The disc itself is about 5 inches in diameter. It can record one hour of stereo music on one side — and it is only a one-sided disc, it’s not meant to be played on two sides…”

Sony demos the CD at TED in 1984 (by TEDBlogVideo)

The U.S. Census Bureau today released a new online service that makes key demographic, socio-economic and housing statistics more accessible than ever before. The Census Bureau’s first-ever public Application Programming Interface (API) allows developers to design Web and mobile apps to explore or learn more about America’s changing population and economy.

Sergey Brin’s Google Glass skydiver demo from I/O keynote (via 9to5Google) (by jkahnjkahn)

MAVIS indexes audio and video so you can do text search over the contents. For example search for ‘metro’ in all of the BUILD conference talks.

Neat demo of Visvalingam’s line simplification algorithm in JavaScript applied to a map of the US.

To simplify geometry to suit the displayed resolution, various line simplification algorithms exist. While Douglas–Peucker is the most well-known, Visvalingam’s algorithm may be more effective and has a remarkably intuitive explanation: it progressively removes points with the least-perceptible change.

Unlike Inception, running a JS engine in a JS engine does not make the inner JS engine go faster.

Implied HTML elements, CSS before/after content, and the link HTTP header combines to make a document that displays something despite having a 0 byte HTML file.  Demo only in Opera/FireFox due to link HTTP header support.