Thought Isolator
Too good to leave neglected in the detritus of the Twitter stream.
The Isolator, a helmet invented in 1925 that encourages focus and concentration pic.twitter.com/GmaEZozgwy
— History In Pictures (@HistoryInPics) February 9, 2014Too good to leave neglected in the detritus of the Twitter stream.
The Isolator, a helmet invented in 1925 that encourages focus and concentration pic.twitter.com/GmaEZozgwy
— History In Pictures (@HistoryInPics) February 9, 2014