|
Latest By
"We are all repositories for genetically-encoded information that we're all spreading back and forth amongst each other, all the time. We're just lousy with information."
|
The essential problem solved by laser cannon is the transmission of power over a very great distance. Since laser light is very focused, in theory the loss of power over a great distance from the source is reduced.
The basic idea for the laser cannon/light sail propulsion system belongs to Robert L. Forward, who published a short paper Ground-Based Lasers For Propulsion In Space in 1961. (Read a short autobiography of Robert Forward.)
Leik Myrabo of the Rensselaer Polytechnic Institute has demonstrated that ground-based lasers can be used to shoot objects into the heavens. The small model craft succeeded in reaching over 100 feet, which compares well to the first test flight of a rocket design by Robert Goddard.
Myrabo's "lightcraft" design is a reflective funnel-shaped craft that channels heat from the laser, towards the center, causing it to literally explode the air underneath it, generating lift.
For more on early uses of solar sail, see the entry from Jack Vance's Sail 25, and starlight sail (light sail) from Cordwainer Smith's The Lady who Sailed The Soul. Comment/Join this discussion ( 6 ) | RSS/XML | Blog This | Additional
resources: Laser Cannon-related
news articles:
Want to Contribute an
Item?
It's easy:
|
Paralysis Ray Uses Photocontrolled Molecular Switch
Gerry was dubious. She had seen abortive attempts at paralysis rays before.
Walky iPhone Finger Gesture Robot Controller
Let your fingers - uh - your robot do the walking. And hopping.
|
|||||||||||||||||||||||
| Home | Glossary
| Invention Timeline | Category | New | Contact
Us | FAQ | Advertise | Technovelgy.com - where science meets fiction™ Copyright© Technovelgy LLC; all rights reserved. |
||