If you’ve used a diode laser engraver or cutter, you know that focus is critical. You’d think it would be relatively simple to get a sharp focus, but it isn’t that simple. [Makers Mashup] shows in a ...

Collaborators on a European project to develop a handheld photoacoustic (PA) imaging probe for early diagnosis of diseases including skin cancer and rheumatoid arthritis are gearing up for clinical ...