Pendulums and much else of amazing things
Totally amazing. Completely useless.
But absolutely absorbing exquisitely competent crazy engineering.
<a href="https://www.dropbox.com/s/tc9s2co60i9tv1h/VID-20180222-WA0000.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - File Deleted</a>
But absolutely absorbing exquisitely competent crazy engineering.
<a href="https://www.dropbox.com/s/tc9s2co60i9tv1h/VID-20180222-WA0000.mp4?dl=0" target="_blank" rel="nofollow noopener noreferrer">Dropbox - File Deleted</a>
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