Re: [Phys-l] modern light sources

[Bernard Cleyet <bernardcleyet@redshift.com>]

In that HS text JD panned, Hewitt explains large office buildings light at night for heating.


bc suspects Rick's buildings are old.


On 2011, Jan 18, , at 11:21, Dr. Richard Tarara wrote:

> ----- Original Message ----- 
> From: "John Denker" <jsd@av8n.com>
> > We should also keep in mind that in an office building of any
> > reasonable size, there is no need for heating of any kind --
> > not from heat balls, heat pumps, or anything else -- because
> > the people and the office equipment produce more heat than is
> > needed.  They have to run the cooling equipment year-round.
> Not sure about this--certainly not in my 'neck of the woods'.  I can look at 
> our Science building which is regularly occupied by many more people than 
> would be in an office building, computers and the like in every office with 
> extra computers around the building, lab and office equipment running 
> constantly.  The building gets damn cold in the winter even though the 
> building is heated.  Now to be sure, all our lights are flourescent and the 
> building is not occupied (or barely so) in the evenings and weekends, but 
> then neither are most office buildings.  Maybe I've missed something earlier 
> in this thread though?
>
> Rick