system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why does water from a shower head lose heat so rapidly based on distance from the shower head?

I.e feels much hotter at the head compared to 50cm away even though the stream isn’t obstructed.
gpt
Well, the more mass something has got, the better it stays warm. The more surface area, quicker cooling. Higher the the air temperature, slower the cool.

Water droplets are small, cool easily. They have a lot of surface area to contact with cool air, this cools it quickly as well. And the if the water comes out 40°C, that's about a 20° difference.