Applied Science posted a YouTube video on July 2 2026 that shows high‑speed footage captured with an atomic force microscope built by icspi. The microscope records a laser‑created diffraction grating on stainless steel and applies a selective etching process that removes material in defined patterns. The same footage also displays bacterial cells adhered to a surface, illustrating the instrument’s ability to image soft samples at high speed. The video has accumulated more than 120,000 views and includes comments from researchers discussing tip wear, imaging artifacts, and surface preparation methods. Links in the description reference the microscope manufacturer, related YouTube channels, and the creator’s Patreon page.