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出典:Wiktionary
出典:『Wiktionary』 (2025/07/29 21:41 UTC 版)
From exa- + ton.
exaton (plural exatons)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/02 21:23 UTC 版)
An exaton is a unit of mass that is equal to 1,000 petatons. It can also used as a unit of energy equivalent to 1×1018 (one billion billion) tons of TNT. This latter use is usually restricted to astronomical events such as meteor impacts or large science fiction weapons.
Exaton