The world's smallest magazine cover is 2,000 times smaller than a grain of salt
 

No, National Geographic Kids didn't forget to buy colored ink -- that's a blown-up view of the smallest-ever magazine cover, created by IBM to set a Guinness world record. The tech firm used a miniscule, heated silicon "chisel" to etch a polymer...

http://www.engadget.com/2014/04/25/w...=rss_truncated