Rashad Al-Mansour wrote:
> Before he became Sir William Herschel, world famous
> astronomer, his *real profession* was as a Composer,
> Musician and Conductor. Like us he was an amateur
> astronomer and ATM when he had the time to pursue it.
>
>
>
> Question One: Out of the 144 pieces of music that he
> wrote during his musical career how many were
> Symphonies?
Didn't know he'd written that many pieces! I do know that 24 of 'em
were symphonies.
> Question Two: What was the material he polish to create his
> first mirrors?
I thought he used tar-pitch. Or did his use of this material come
later?
...Bob...