On Jan 11, 4:39*pm, Richard Harrison wrote:

Richard (H) relies on books because it is more effective and efficient
than experiencing everything for himself.

A good observation.

How many modern research labs repeated the work that led to the
fundamental laws of physics in use today before they undertook the
design of new systems and products? (Answer = Zero.)

Art Unwin: have you verified for yourself by mathematics and
experiment the "first principles" originating with the "masters" you
like to refer to here?

If not, why, by your posts do you expect others on r.r.a.a. to have
done so?

RF