We created the world's sharpest obsidian knife, which outperforms a scalpel, using a 60,000 PSI waterjet to craft an extremely thin blade. This video also features cutting petrified wood. Music by ...

This restoration involved various specialized tools, including: - Canon R5 camera - Multiple camera lenses - Ultrasonic cutter - Magnetic stirrer - Polishing cutting compounds - Mini buffer polisher - ...