padfoot

3 ms·

1. 1.▲
   A high-resolution endoscope as thin as a human hair(engineering.stanford.edu)

   2 points by padfoot 14y ago|0 comments
2. 2.▲
   World's first underwater nuclear explosion(ca.news.yahoo.com)

   2 points by padfoot 14y ago|0 comments
3. 3.▲
   by padfoot 14y ago

   And the ability to spell as well.