Frequency comb: Georg Woltersdorf (left) and his colleague Chris Körner in the lab where they created a spin frequency comb. (Courtesy: Uni Halle/Markus Scholz) A simple method for multiplying the ...

This simple circuit has been designed to generate sine waves with a frequency of 1 KHz while featuring low distortion and low output impedance until 1 V RMS as it obtains power from batteries. Sine ...

If you use a function generator, you may occasionally require a sine-wave output at a higher frequency than the generator can provide. If your function generator also produces a triangle-wave output, ...

New methods of detecting ultra-low frequency gravitational waves can be combined with other, less sensitive measurements to deliver fresh insights into the early development of our universe, according ...