newRPL - build 1255 released! [updated to 1299]

[Claudio L.]

(11-25-2018 03:56 PM)The Shadow Wrote:  I'm not sure how big of an effect it will have on the Units menu, but the CGPM voted recently to redefine the International System of units, the changes go into effect on May 20 of next year.

Just as the speed of light in vacuum has an exact value now (since the meter is defined in terms of it), at that point so will Planck's constant, Boltzmann's constant, the charge of the electron, and Avogadro's number. (As well as a few more obscure numbers.) Since you'll never have to worry about them changing in the future, they may be worth adding to the menu.

I'll review the entire set of units in newRPL for correctness before the May 20 date, there might be little tweaks needed here and there in terms of conversions. I didn't research it too well yet, but for example if the kilogram is redefined does it mean the pound will be redefined to match? if so the current conversion kg/lb stays the same, otherwise the lb stays the same then we need to update the factors. For example, the ft was redefined in 1959 as a constant in terms of the metre (0.3048), so redefining the metre would automatically redefine the ft, but I'm not sure the same happened with the pound.