See also: how long this process takes.

Engineer Guy is a series of videos that efficiently explain how everyday objects are designed and function. Surprised I haven’t posted about it yet.

Arthur Ganson creates kinetic sculptures.
Also a fun to place visit with an exhibition of Ganson’s and other great things to play with is the MIT Museum.

Time is such an amazing, reflective concept.
History of timekeeping devices.
History of navigation.
History of longitude.

[via Disney Research]