A phonograph needle reading along an LP record. Y'know, people marvel at the digital age — I marvel at what was done in the analog age.
(h/t +Yonatan Zunger)
Originally shared by +Ben Krasnow:
Electron microscope video of phonograph needle in an LP groove. About 1/400 actual speed. Captured via Tektronix MDO3000 oscilloscope.
This video was made via the "stop motion" animation technique. I moved the LP by 50 microns at a time, and captured a frame after each move. The setup inside the microscope was made possible by the fact that there are two separate stages with their own motion controls. I fixed the needle to one stage and the LP to the other so that I could get both parts into the frame at a good angle.
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Cool!
As a vinyl junkie: Wow! Vinyl rules!!! Compressed digital drools…
That’s not amazing. What is amazing is the interuptor on a WW1 aeroplane that timed machine guns to the propeller gaps. That has had me astounded for the last 30 years!