i believe i finally have an answer for how far carter's 24.77m throw wouda been with a 16lb instead of 12lb
it's
24.77 * (12/16)^(1/3) ->
22.50
that was done 6/16/79
the wr at the time was
22.15 m Udo Beyer (GDR) 6 July 1978
the suggested 22.50 wasn't beaten until
22.62 m Ulf Timmermann (GDR) 22 September 1985
meaning carter was best shotter ever, senior as well as junior for 6y
http://en.wikipedia.org/wiki/Men%27s_shot_put_world_record_progression
i can't find wrong with physics ?!