One of Death Valley's claims to fame is holding the record for the world's hottest air temperature that was recorded in 1913 (approximately 57°C in Furnace Creek, Calif).

Zhao and his team tested their device for one week in Death Valley, where humidity can reach as low as 5 per cent. For comparison, London’s year-round average is around 70 per cent.

Furnace Creek in Death Valley, California reached a record temperature of 54.4 C on August 16th, 2020. (NPS/J. Jurado) Quirks and Quarks 2:33 Why are the hottest temperatures measured in Death Valley?