"Archimedes Plutonium" wrote in message
...

A weight test where a weight is placed in the middle of the board and
WhiteAsh
flexed off center by 145 mm and Hickory flexed 106 mm and Oak flexed 70
mm. So Oak
is clearly the strongest and not Hickory!

No, you've proved that Oak is the stiffest, not that it is the strongest.
You need to break the samples to find out which is strongest. A 4-point
bending test would be best.
--
Terry Harper
http://www.terry.harper.btinternet.co.uk/