invisible on Technabob...

This speaker doesn’t look like much, since it’s mostly made out of transparent materials, but it sure looks nice. It’s People People’s invisible speaker, and it’s made for people who want a speaker that doesn’t look like an ordinary speaker.…

Metamaterials are awesome in that they promise future ways to make real objects invisible to the eye and to block acoustic signals. This would be the prankster’s ultimate weapon. Imagine a suit that would allow you to sneak around unseen and unheard. I’d skulk around waiting for the skank down…

If you ever wanted to send secret messages using your computer, you could just embed secret messages in your image files. But if you want to print out hidden messages, you can hack your inkjet printer to print invisible messages.…

I’ve always enjoyed modern art, but involving the viewer with these paintings that only become visible after you take a photo with your cell phone or your camera is genius.…

Researchers at BAE systems are hard at work on a system that uses E-ink and a hoard of sensors to render tanks almost invisible to the naked eye. The system is dubbed e-camouflage and would project the landscape around the tank onto the surface of the tank to make it…

Thanks to a little clever Kinect hacking, you can now be rendered invisible.

Coder Takayuki Fukatsu figured out a way to replace his image with an invisibility cloak when viewed through the Kinect’s eyes. The way it works is by using a software hack (built with Openframeworks) to apply a…

Here’s a handy way to keep a secret. Just grab one of these ultraviolet invisible ink pens, and you can leave yourself hidden messages that you can easily decode using the same pen you wrote them with.

Each pen has a built-in ultraviolet LED light, you can read messages that…