David Kirkpatrick

March 31, 2008

Tiny projectors and space elevators

From KurzweilAI.net today — tiny digital projectors for cell phones and other portable media devices, and outlining a potential problem with the space elevator concept.

Coming Soon, to Any Flat Surface Near You
New York Times, Mar. 30, 2008Tiny digital projectors for cellphones and portable media players are in the works, able to project video on any smooth surface.

The microprojectors, still in prototype, use light-emitting diodes, lasers or a combination of the two to cast a display of up to 50 or 60 inches, or perhaps even wider, in darkened spaces and 7 to 20 inches or so when there is ambient light.

Later, the projector modules will be directly embedded in cellphones and other devices.
Read Original Article>>

Space elevators face wobble problem
New Scientist news service, Mar. 28, 2008A Czech Academy of Sciences study suggests that building and maintaining a space elevator would be an bigger challenge than previously thought, because it would need to include built-in thrusters to stabilize itself against dangerous vibrations.
Read Original Article>>

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