Digital BW, The Print

Richard,

glad to have helped. The vacuum bottle analogy is precious, btw...!

Antonis




--- In DigitalBlackandWhiteThePrint@y..., RHRohlfing@a... wrote:


> Reminds me of the great attributes of an old lunchpail vacuum 
> bottle.  It keeps hot things hot and cold things cold -- Yes, but, 
> how does it know?
> 
> Thanks Antonis.  It is becoming clearer!
> 
> Richard