'Popular Scientific Recreations, Profusely Illustrated' on the feasibility of powered flight.
mechanics
Dog Power!
Article about a dog-powered sewing machine from 'Popular Scientific Recreations, Profusely Illustrated'.
Charlie is our Darwin
'Popular Scientific Recreations, Profusely Illustrated' on the feasibility of powered flight.
Article about a dog-powered sewing machine from 'Popular Scientific Recreations, Profusely Illustrated'.