All that glitters…

Gold particles on carbon at x50,000
Gold particles on carbon at x50,000

Here’s an image of a gold calibration target. To give you an idea of the scale, that line representing 100 nanometers is roughly the diameter of the HIV virus.

In other news, I posted wav2tiff to Github. I made the above image with Milly, an audio cable, a 10k resistor, and that script.