'Popular Scientific Recreations, Profusely Illustrated' on the feasibility of powered flight.
Writing tagged: ‘mechanics’
Dog Power!
Article about a dog-powered sewing machine from 'Popular Scientific Recreations, Profusely Illustrated'.
'Popular Scientific Recreations, Profusely Illustrated' on the feasibility of powered flight.
Article about a dog-powered sewing machine from 'Popular Scientific Recreations, Profusely Illustrated'.