Energy from Natural Resources => Gravity powered devices => Topic started by: iacob alex on February 03, 2016, 05:30:37 AM
Title: A virtual visit...
Post by: iacob alex on February 03, 2016, 05:30:37 AM
.....at : www.teylersmuseum.nl/en/collection/instruments-overview A simple device/instrument is an easy path to understanding of phenomena around us... Al_ex