Ruby Console as Conversion Calculator

[MartinRinehart]

If you need to convert international units (mm, cm, ...) to American units (in, ft, ...) the Ruby Console is your friend, no Ruby required.

Window/Ruby Console. You type in the white bar. It repeats and answers you in the brown area. Conversions explained here:

http://www.MartinRinehart.com/models/tutorial/tutorial_02.html#rc_conversions