Science Fiction Motif Index

Sub-motif under Superweapons

"A reaction drive's efficiency as a weapon is in direct proportion to its efficiency as a drive."

Originated in Larry Niven's Known Space series.

Examples

1967 The Ethics of Madness
The efficient Bussard Ramjet also makes an excellent weapon for Hooker, who wishes to destroy Loeffler's house.
1970 Ringworld
Mentioned by name, by the character Speaker to Animals. Speaker points out that the Ringworld expedition ship, though devoid of weapons, has forward-facing engines that could easily destroy many ships. The crew decides to name the ship Lying Bastard because of this.