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A comment on The Pentagon’s electromagnetic ‘rail gun’ makes its public debut. Parent comment

Re:The Pentagon’s electromagnetic ‘rail gun’ makes its publi... by Symmetry on Monday February 09, 2015 @04:18PM (#9023820)
Thankfully using "escape velocity" covers all that energy cost.
[ Parent | on HN ]
Re:The Pentagon’s electromagnetic ‘rail gun’ makes its publi... by Dylan16807 on Monday February 09, 2015 @11:52PM (#9025444)
It covers the speed you need, but not the velocity. For most tasks, launching directly away from Earth with minimal post-launch fuel capacity is not very helpful.
[ Parent | on HN ]