Adam Savage chooses his favourite out of three unbelievable inventions from the archives of the Royal Society. More links below ↓↓↓

Objectivity on Patreon:   / objectivity  

Check out Adam's channel:    / tested  

Subscribe to Objectivity: http://bit.ly/Objectivity_Sub
Films by James Hennessy and Brady Haran

Royal Society website: http://bit.ly/Royal_Society

The Royal Society's own YouTube channel:    / royalsociety  

Facebook:   / objectivityvideos  
Twitter:   / objectivity_vid  

Patron thank you page: http://www.bradyharanblog.com/objecti...

Objectivity T-Shirts: https://teespring.com/stores/objectivity