UPS Laser Show, originally uploaded by Neil_Henderson.
from the UPS laser show in Darling Harbour 2000.
Monthly Archives May 2008
UPS Laser Show
Exploring the Paul Revere House by laser
Researchers at the Paul Revere House are using three-dimensional laser techniques to study the historic site. More at The Boston Globe
Green laser to scare birds :)
Green laser technology that sweeps airport runways to scare away birds could help regional civil aviation authorities to combat a large threat to aircraft safety during take off and landing. Bird and wildlife strikes to aircraft costs the US civil aviation industry more than US$600 million annually, while 220 people have been killed world-wide as a result of bird strikes in the last 20 years. More at Lord Ingenierie
Reflections
Reflections, a laser game.
Laser Challenge
A flash game on the topic of Lasers from Nobel Prize’s website.
Cats looking at laser
They are really interested in laser, just like me.
Laser Blasts Flesh
What happens when a high-power laser weapon strikes human flesh? This is the topic addressed in a paper for the Air Force office of Scientific Research with the title, “Laser Induced Shock Waves and Vaporization in Biological Systems.” It’s all about computer modeling the effects of laser pulses:
In order to cause damage to the absorbing material, the electromagnetic energy of the laser pulse must be converted to thermo-mechanical energy. We have developed a computational model that allows the calculation of damage resulting from a laser pulse of any duration or energy due to temperature rise, explosive bubble formation, and shock wave production. We have discovered that the system exhibits chaotic dynamics….
We also discovered resonant effects in laser absorption and damage that allow the duration between pulses to be tuned to channel a greater or lesser fraction of the absorbed energy into shockfront and bubble production. This allows the delivery of large amounts of laser energy to produce strong thermal effects while suppressing unwanted pressure effects, or vice versa.
Via: Wired Blog
The Graffiti Laser
Australian artist Chris Poole has DIYed a different kind of laser graffiti device, compared to Graffiti Research Lab’s, as reported by Popular Science.
How it Works
BRIGHTNESS: The laser uses about 60 milliwatts, which can project an image up to 100 feet away, but Poole could easily substitute a laser with a range of as much as 400 feet.
FOCUS: By moving the salvaged camera lens—the last part that the laser shines through—forward or back, Poole can easily adjust the focus of the projected picture.
PORTABILITY: Poole can rejigger the parts to fit into a small case. The light bounces between a set of mirrors, then through the slide, a camera lens, and a hole cut into one side. He hasn’t used it much, however, since he’s been told it looks like a suitcase bomb.
