But the real gem? The weird janky motor he built to run it. The concept is simple. An e-bike is electric, in that it has an electric motor and a source of electric power. However, [Tom] intended ...

A new milestone for the future of United Launch Alliance’s rockets was conducted by Northrop Grumman Innovation Systems (NGIS) on Thursday, when the first GEM-63 motor was test-fired for 110 ...