Conyers falchion
Goalkeeper
Ah yes! the Lunar rover,
Wiki.
Daytime on one side of the moon lasts about 13 and a half days, followed by 13 and a half nights of darkness. When sunlight hits the moon's surface, the temperature can reach 260 degrees Fahrenheit (127 degrees Celsius). When the sun goes down, temperatures can dip to minus 280 F (minus 173 C).27 Oct 2017
NASA.
Like the human body, the Exploration Rover cannot function well under excessively hot or cold temperatures. In order to survive during all of the various mission phases, the rover's "vital organs" must not exceed extreme temperatures of -40° Celsius to +40° Celsius (-40° Fahrenheit to 104° Fahrenheit).
The rover's essentials, such as the batteries, electronics, and computer, which are basically the rover's heart and brains, stay safe inside a Warm Electronics Box (WEB), the Heaters are packed inside the rover body, and like a warm coat, the WEB walls help keep heat in when the night temperatures on Mars can drop to -96° Celsius (-140° Fahrenheit). Just as an athlete sweats to release heat after an intense workout, the rover's body can also release excess heat through its radiators, similar to ones used in car engines. <--------![]()
I think the point is that the lunar rover maintained a suitable temperature range by losing heat to the surroundings only by radiation, because evaporation, convection and conduction as methods of heat transfer are not available on the Moon, because the Moon has no atmosphere. The rovers did not use a working fluid such as water to transfer heat from the engine to the radiator as ordinary cars do, but instead the radiators were in direct thermal contact with the batteries and other equipment. The performance of the radiator was affected by being covered by moon dust, and dutifully measured and recorded. Who could possibly have faked all of this?
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The more I read about the Apollo missions, the more impressed, indeed amazed, I am by the staggering depth, detail and brilliance of the application of scientific and engineering principles to bring about this triumph of human achievement.