Kirt's Cogitations™ #132

These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.

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   Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or reflection; meditation; contemplation.
   Kirt [kert] – proper noun: RF Cafe webmaster.

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Really Big and Really Small

Peta, exa, zetta and yotta: Those are the numerical prefixes for 1015, 1018, 1021 and 1024, respectively. Their reciprocals are femto, atto, zepto and yocto, at 10-15, 10-18, 10-21 and 10-24, respectively.