Warning Harry Potter fans, it’s not quite what you think. From The Atlantic:
Just before Christmas I finally got to see an invisibility cloak. I’ve written a whole book about invisibility—its myths, magic, and technology—but never before had I seen in the flesh one of the new devices that promise to make things vanish.
We all know what invisibility is, don’t we? Now you see it, now you don’t. Well, this invisibility cloak certainly wasn’t like that. It was housed in a Plexiglass box, and there was an on-off switch on the side. I was told to look through a viewing screen, through which I saw, in a gold-tinted mirror, the slightly distorted reflection of a toy panda. The reflection had a chunk missing where a couple of small triangular prisms, glued back to back and placed in front of the mirror, obscured the view. When the switch was flipped “on,” that missing part sprang back into view, as though the prisms had become wholly transparent.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — How Authority and Decision-Making Differ Across Cultures
Wearables — Perform operation
Electronics — Soldering Pointer!
Biohacking — EGG – Gut Monitoring Using Electrical Signals
No comments yet.
Sorry, the comment form is closed at this time.