Here's a fun one to try... units -v lightyear "light year" Confused? Try "units -v" on each of the terms individually, and the results might be enlightening, albeit a bit time-consuming. (Sorry, I couldn't resist.) Astronomy geeks might want to browse the units.dat file (RTFM), to find out just how many ways you can define a year! :P And speaking of RTFM, +1 for units as a future RTFM topic. Gilbert On 21/04/2015 10:38 AM, Michael Doob wrote:

So you can also compute how many feet light travels in a nanosecond (Try it; you can remember the answer with less than 2% error).

RIP Grace Hopper! (Look it up if you're too young to remember.)

Cheers, Michael

On 15-04-21 09:22 AM, Sean Walberg wrote:

...

My favourite has always been:

You have: 1 nanoacres You want: mm2 * 4.0468564 / 0.24710538

On Tue, Apr 21, 2015 at 8:41 AM, Bradford C. Vokey <brad@fsi.ca <mailto:brad@fsi.ca>> wrote:

And once again, I learn something new from the master Adam.

I'z immediately "yum install units"

I think units(1) might make a good RTFM? Especially going over some of it's esoteric units (i.e. millilightseconds? really?).

Or have we done units and I just can't remember?

=== Bradford C. Vokey

Treasurer Manitoba Unix User Group ===

On 2015-04-21 6:53 AM, roundtable-request@muug.mb.ca <mailto:roundtable-request@muug.mb.ca> wrote:

...

Feeling slightly giddy, I typed into my shell:

$ units 1311 units, 63 prefixes

You have: 3 millilightseconds You want: miles * 558.84719 / 0.0017893979

"500 miles, or a little bit more."

-- Gilbert E. Detillieux E-mail: <gedetil@muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ PO Box 130 St-Boniface Phone: (204)474-8161 Winnipeg MB CANADA R2H 3B4 Fax: (204)474-7609