On Wednesday, December 12, 2018 at 2:57:49 PM UTC-8, Martin Brown wrote:
On 12/12/2018 17:22, Paul Schlyter wrote:
On Wed, 12 Dec 2018 06:01:14 -0800 (PST),
Canada is metric , so as Mexico, been there , roads are in km units.

When will the US join?

They signed up for SI very early on 1866 but never quite got around to
implementing it. USGS used a metric length standard but almost no-one
else. US short measure "gallons" led to the Gimli glider incident.

Odd that they blame their weird and arcane units on the English.

BTW the comet is now quite bright and an easy binocular object about
half the size of the moon in a dark sky. It should get brighter with
each passing day and will be pretty close to the Pleiades next week.

--
Regards,
Martin Brown

It mag 4.7 now!
https://theskylive.com/46p-info