The conversion rule that I advocate is
30 - 50 - 80
or
20 - 30 - 50 - 80 -130
The first line means 30 mph = 50 km/h and 50 mph = 80 km/h
The second line has the same meaning, but has been extended to include 20
mph and 130 km/h
_____
From: [email protected] [mailto:[email protected]] On Behalf
Of STANLEY DOORE
Sent: 16 June 2009 08:32
To: U.S. Metric Association
Subject: [USMA:45248] Use 62 mph
Here's an idea to promote metric.
Use 62 mph (100 km/h) in the process of converting to the SI.
People understand 62 mph so why not use it until real conversion takes
place. It would be a subtle way for people to learn metric.
I noticed the use of 62 mph in an add in Roads and Bridges magazine.
Regards, Stan Doore
