How do you test the oscillator circuit you just made that runs between 200MHz and 380MHz if all you have is a 100MHz oscilloscope, a few multimeters and a DC power supply? One answer is to put ...

The Alphachron is an integrated 4He degassing and measurement system. Samples are loaded into an ultra-high vacuum sample chamber where they are heated with a diode laser to release the He. The sample ...

The NFL is considering using optical tracking cameras to help officials with first down calls next season. Will it actually help?

[Jason H. Gao] and [Li-Shiuan Peh] used an infra-red (IR) line laser and the camera on a smartphone. Their prototype cost only $49 since they used a smartphone that was on hand. The article ...