A lovely British man named Tom Scott solved the mystery of two liquid nitrogen tanks that reside on the block of 50th St. and 6th avenue, right across from Radio City Music Hall.

Scott has his own YouTube channel where he runs a regular installment called “Things You Might Not Know.” More than 100,000 people subscribe to watch his short, simple takes on, y’know …

No spoilers on this one; you’ll have to watch his brief, eloquent and fascinating explanation.

Yay, science.

(Photo: YouTube)