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Laser power system keeps UAVs flying indefinitely

Laser power system keeps UAVs flying indefinitely

Drone technology is driving the aerospace industry as companies trip over each other trying to develop the next big thing. Here’s a good example of what we’re talking about.

Via Hack a Day | Posted on 2012.09.27 at 21:45

NES light gun gets a burning laser upgrade

NES light gun gets a burning laser upgrade

The Nintendo Light Gun makes a perfect burning laser. Of course it’s been gutted to make this happen. Nonetheless, the retro look can’t be beat, and the gun form factor is just what you need in a laser weapon.

Via Hack a Day | Posted on 2012.09.21 at 22:42

Variable frequency laser using shaken ball bearings

Variable frequency laser using shaken ball bearings

Lasers normally emit only one color, or frequency of light. This is true for laser pointers or the laser diodes in a DVD player. [Kevin] caught wind of state-of-the-art research into making variable wavelength lasers using shaken grains of metal and decided to build his own.

Via Hack a Day | Posted on 2012.09.19 at 14:06

16×8 pixel laser projector

16×8 pixel laser projector

[Michiel] gave us a little shout-out by drawing the Hackaday logo with his recently completed 16×8 pixel laser projector. It uses a spinning set of mirrors mounted at slightly different angles to redirect the path of the red laser diode.

Via Hack a Day | Posted on 2012.09.14 at 20:41

DIY laser cutter from non-DIY parts

DIY laser cutter from non-DIY parts

[Jerry] missed the laser cutters he had been using at the local TechShop. It closed down and after seeing some hardware in a surplus store he decided to build a laser cutter to call his own.

Via Hack a Day | Posted on 2012.09.01 at 05:07

A laser audio transmitter

Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a laser to transmit audio.

Via Hack a Day | Posted on 2012.08.31 at 12:11

Making sure a baby is still breathing with lasers and a wiimote

Making sure a baby is still breathing with lasers and a wiimote

[Gjoci] just became a father, and to make up for not having to carry a baby to term he decided to make himself useful in another way. He developed a sensor to detect a baby’s breathing, allaying the fears of nervous parents who are wondering why their child is so quiet.

Via Hack a Day | Posted on 2012.08.21 at 19:16

Femto-photography: Taking pictures of bullets made of light

Femto-photography is a term that derives its name from the metric scale’s prefix for one-quadrillionth. When combined with photography this division of time is small enough to see groups of light photons moving.

Via Hack a Day | Posted on 2012.08.17 at 14:53

Laser diode controller for a CNC mill

[Smells of Bikes] wanted to add laser etching to the list of tricks his home CNC setup is capable of. He has a diode which will work for the task, but he needed a driver that could be interfaced with the CNC system.

Via Hack a Day | Posted on 2012.08.16 at 08:34

Copper vapor laser is amazing

Copper vapor laser is amazing

What better way to spend a few months in the workshop than by heating Copper chloride to 400° C, building rotary spark gaps and 30kV capacitors, playing with high vacuums and building a very powerful laser? It’s just a day in [Jon]‘s life as he builds a DIY Copper vapor laser.

Via Hack a Day | Posted on 2012.08.13 at 17:06


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