The Army, The Inventor And The Surprising Uses Of A Batman Machine
The Army wanted a new, small device that could pull a person rapidly up a rope. The invention they eventually got has uses far beyond the military.
Read more on NPR
Health & Science - September 5, 2017 at 04:04PM - The Army, The Inventor And The Surprising Uses Of A Batman Machine
Không có nhận xét nào:
Đăng nhận xét