[BostonCard]

Semi yearly addition to this thread.

https://www.extremetech.com/extreme/3427...QN6o4k0%3D

In the latest issue of Optics Express, the group reports that when using a 90mW laser, their tractor beam in a box can produce about a micronewton of pulling force. The setup is deceptively simple. The scientists vapor-coated a sliver of glass with reflective gold, and then stuck a flake of cross-linked graphene to the other side. Then, they pointed blue, cyan, and green lasers at the flake of graphene. Lo and behold, it moved toward the laser emitter.

BC

[BostonCard]

Semi yearly addition to this thread.

https://www.extremetech.com/extreme/3427...QN6o4k0%3D

In the latest issue of Optics Express, the group reports that when using a 90mW laser, their tractor beam in a box can produce about a micronewton of pulling force. The setup is deceptively simple. The scientists vapor-coated a sliver of glass with reflective gold, and then stuck a flake of cross-linked graphene to the other side. Then, they pointed blue, cyan, and green lasers at the flake of graphene. Lo and behold, it moved toward the laser emitter.

BC