Moon landing(s) and every single war in modern history.
Discussion
Interesting , have to read some more about moon landing things.
Let's see... A mobile air-conditioning system that you can wear/carry, developed over 60 years ago, makes anyone able to withstand 400°C temperatures with ease.
My car, with its internal combustion engine and proper full air conditioning, can't even keep me comfortable in 45°C heat 😂.