They crawl straight down along the heating pipes

Mirrors cooled either by active cooling or by heat pipe cooling;

Heat pipe cooled mirrors Conventional Section: p. 246, 6.A.5.e.1

I do not know it. It were the heatings pipes Ofzo, I do not know it.

Toilets, water pipes and heat pipes. There's always something in there.

Henry left her too close to a heating pipe or something.

Oh, plumber... lets have ya ... heating my pipes...

Heat pipes may be left pressurized if the probability of rupture can be demonstrated to be very low;

a. Cryogenic refrigerators, flightweight dewars, cryogenic heat pipes or cryogenic systems specially designed for use in space vehicles and capable of restricting cryogenic fluid losses to less than 30% per year;

a. Cryogenic refrigerators, flightweight dewars, cryogenic heat pipes or cryogenic systems specially designed for use in space vehicles and capable of restricting cryogenic fluid losses to less than 30% per year;