He’s also obsessed with lasers and popping black balloons. So he took the laser heads out of four DLP computer projectors (the ones with 24 of those 1.5W Nichia diodes) and combined them.

One problem with a big laser pointer is having enough voltage to drive the laser. He took an inverter-style microwave and pulled out the lightweight transformer. The final build has a 555 and is ...

Whether you enjoy crafting, need a way to measure out your small construction projects, or just want a futuristic ruler, a laser measuring tool can be worth having, and Amazon's Big Spring Sale is ...

Like the LG, it produces big images from a small footprint ... You may like Optoma's new 4K laser projector promises high brightness with both Dolby Vision and HDR10+, so it knows what to do ...

A research team at HZB has developed a clever technique to read quantum spin states in diamonds using electrical signals ...

I have been recommending people buy whatever Brother laser printer is on sale for three years now, and no one has ever gotten mad at me about it. My own Brother laser printer, whose model number I ...