Note to self: ping pong balls make nice LED diffusers.
I tried sitting the ball on top of an LED, that did work but the brightness was greatly reduced. Next I tried drilling a small hole, just big enough for the LED. This works very well. There is a noticeable bright spot on the ball but in general the entire ball lights up well.
A reader of the uC Hobby Blog writes:
Try stuffing the ball with crushed paper napkins(the cheaper you can get), they get rid of the “halo” on top of the ball.
Russian artist Roman Booteen modifies coins with incredible engravings and feats of mechanical engineering. This coin features a beating heart. Other exquisite examples of his work are below. He also customizes Zippo lighters. (via Kottke) View this post on Instagram #hobonickel #goldinlay #morgandollar #engraved #engravedcoin #hobonickel #hobonickels A post shared by Roman Booteen (@romanbooteen) on […]
David Schneider built his own radio telescope out of roof flashing, an empty paint thinner can, a free software-defined radio app, USB receiver, and a length of coaxial cable. The whole project cost him less than $150 and he’s already used it to detect galactic hydrogen and monitor the motion of our Milky Way galaxy’s […]
Our friend Donald Bell put together an excellent little tour of some of the game designs from the alt.ctrl showcase at last week’s Game Developers Conference in San Francisco. And here’s a handy link list that Donald provides to the game projects covered: HELLCOUCH: A Couch Co-op Game (Carol Mertz, Francesca Carletto-Leon) Continuum Bacterium (HNRY) […]
People who ask themselves why they need a dashcam usually have one thing in common: They’ve never been a serious collision. Even in fender benders, these gadgets can save you an immense amount of time and hassle, stopping headaches before they even start. If you’re looking for a reliable starter cam, the myGEKOgear Orbit 110 […]
There’s no shortage of wireless chargers out there. So when one scores a Best of Innovation Award at the Consumer Electronics Show, we take notice. And, those industry nods mean good news for just about anybody with a smartphone, because the HyperCharger X Wireless Charger means there’s no excuse for losing power when you’re out […]
Once you’ve cut steak or poultry with some actual quality knives, it’s really tough to go back to those budget blades you bought at the department store a couple of decades ago. Consider that a fair warning about this 5-Piece Professional Damascus Chef’s Kitchen Set. The holiday discount makes it easy to buy for a […]