That’s not a colostomy bag, it’s the first prototype of [Stephen’s] scratch-built closed loop ... of the system which pumped cool water from a large jug through a loop of plastic tubing ...

Heat pumps have become a hot topic in building decarbonization conversations, but there are still misconceptions about them.

gas or spicy nuclear rocks — is that they have a closed steam loop with a condenser section in which the post-turbine steam is re-condensed into water. This water is then led back to the steam ...