Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

I learned a new word today: zeptosecond

  • Please log in to reply
1 reply to this topic

#1 Cali

Cali

    Surveyor 1

  • *****
  • topic starter
  • Posts: 1,899
  • Joined: 21 Aug 2018
  • Loc: Bay Area

Posted 18 October 2020 - 09:37 AM

A decimal point followed by 20 zeros and a 1

 

Used to express the time it takes a light particle to cross a hydrogen molecule.

 

Gives new meaning to the phrase, "I'll be right there."

 

- Cal


Edited by Cali, 18 October 2020 - 09:43 AM.

  • kw6562 likes this

#2 kw6562

kw6562

    Authoritative Ignoramus

  • *****
  • Posts: 949
  • Joined: 25 Jun 2008
  • Loc: MA

Posted 18 October 2020 - 10:22 AM

1 atto-parsec is a little over 1 inch (~3 cm). --Keith




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics