The House-Mover's Methods Applied to a Stranded Submarine, German Efficiency and the Soul, and more
U.S. submarine "H-3" aground in Samoa Beach, Calif.
U.S. submarine "H-3" aground in Samoa Beach, Calif.
How a Thin Flexible Plate does the Work of a Lever
Technical Details of Our Newest Substitute for the Army Mule