More ideas from Einar
Build Heron's Fountain

how to build Heron's fountain--calls for three scavenged water bottles and rigid aquarium tubing<<I don't have kids, but I will try it anyways

Drive a DC motor with a transistor and arduino

To drive a DC motor you need a larger amount of current than Arduino board can give. For that reason you must use a transistor. Transistors have limits and maximum.

7 Trim Carpentry Secrets

7 Trim Carpentry Secrets - It’s especially handy for laying out and installing outside corners. I measure the angle of the corner, subtract that angle from and divide by two to get the miter angle.

Rode Ixy.  Capturing high-quality audio with your iPhone or iPad without additional equipment is pretty much impossible. If you need to record crisp video voiceover, classic quotes from your buffoon of a boss, or even organize that will stand up to courtroom scrutiny, this 24-bit stereo microphone designed specifically for your iPhone & iPad is what you’ll want.

Capturing high-quality audio with your iPhone or iPad without additional equipment is pretty much impossible. If you need to record crisp video voiceover this stereo microphone designed specifically for your iPhone & iPad is what you’ll w

iPinLaser Laser Pointer For Your iPhone; perfect for those lovely presentations or just playing with your cat

The iPin iPhone laser pointer attachment is a small device that goes into the headphone jack on your iPhone and lets you use your phone as a laser pointer. The iPin mobile powered laser comes with an .

pedersen

The Pedersen Bicycle, gallery page 5