Terrestrial Television transmissions and CO^2 emissions.
 

In article , Robert Wilson wrote:
A satellite is completely self sufficient, being solar or Pu powered.

Opinions?

Doesn't it also need to carry a supply of chemical fuel or gas for its
manoeuvreing thrusters? Satellites don't just stay perfectly positioned
for ever; they need adjustment from time to time. This alone must mean
they have a finite life, unless somebody can devise a means of sending
up a refill, but I suspect the refill-to-replacement ratio is probably
even worse than for inkjet printers.

Rod.

Terrestrial Television transmissions and CO^2 emissions.
 

Roderick Stewart wrote:
In article , Robert Wilson wrote:
A satellite is completely self sufficient, being solar or Pu powered.

Opinions?

Doesn't it also need to carry a supply of chemical fuel or gas for its
manoeuvreing thrusters? Satellites don't just stay perfectly positioned
for ever; they need adjustment from time to time. This alone must mean
they have a finite life, unless somebody can devise a means of sending
up a refill, but I suspect the refill-to-replacement ratio is probably
even worse than for inkjet printers.

Rod.


I had'nt thought of that one. It would be fun of someone with knowledge
of these things could do some conrete number for us to compare.

Regards,

Rob.