PSI or BAR in Tech diving?

[Tortuga68]

ummm i think you'll find Imperial measurements are all based on the human body..

Are the 12 hours of a day/night, 12 months of the year and 12 signs of the zodiac also based on the human body?

as for why a 3m stop.. Haldane was English.. the English used Imperial measurements... If Haldane had been French, i expect it would have been 2m, 4m, 6m etc,,,

That doesn't make sense. Besides, I thought he just wanted to see a goat explode...

 

[Ste Wart]

There's a complete description here for the origins of Imperial measurements;

Imperial Measures of Length


And an interesting article on owning French Property, which higlights the disparity of use in the Imperial system.

Imperial and USA Measurement Systems

It also highlights this

Consequently, the USA is the only major country that has retained a non-metric system (the other two countries are Liberia and Burma)

Go team USA!