There are many fun things you can do with LN2. I often use it to flash freeze tissues and proteins and even cryopreserve cells for decades. But the most interesting game I like to play it drop it on a surface and watch it carry all the dust particles to the sides and kind of cleaning the surface for me 😁. And sometimes Or, I just make slow-mo videos with it, sometimes.

Below is a slow-mo video of me dropping a vial to flash freeze in the LN2 -