One of the things I do to relax is watch TEDTalks online. Lately I had seen this two talks: one is about a subject that I love, gather information around you and interpret it. The other is a futuristic view of a machine or multiple kind of machines that can build a human body.
This is Deb Roy on “The birth of a word”:
This is Anthony Atala on “Printing a human kidney”:
Ulisses Costa Blog 