Rick "The Notes Guy" Dickinson wrote:

> Also, within a gas-filled bulb, convection currents can cool the
> filament, meaning that a thicker, lower resistance filament must be
> used to to get to the same temperature and light output.  Thicker
> filaments last longer.

  You are saying that they put gas in the bulb to make it deliberately
*far less efficient*?  Now if that don4t beat all!

  Cheers,
        Paul B.