The Kid Should See This

Sculpting in Solid Mercury using Liquid Nitrogen


Boing Boing Video teams up with PopSci and Theo Gray (in 2009) for an eerily beautiful science experiment — how to cast solid, if fleeting, shapes from normally liquid mercury — just keep it at 320 degrees below zero, with liquid nitrogen.

We love seeing examples of the elements’ different freezing and melting points. Because of Mercury’s toxicity, this one is especially interesting.

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.

🌈 Watch these videos next...

Japanese manhole covers, a factory tour

Rion Nakaya

Throwing a pot full of just-boiled water into the -41C air

Rion Nakaya

Aluminum + Mercury = Aluminum amalgam

Rion Nakaya

What happens to balloon animals in liquid nitrogen?

Rion Nakaya

Chemiluminescence: BytesizeScience’s glowing chemistry demo

Rion Nakaya

Theodore Gray’s Periodic Table Table: A rare collection of elements

Rion Nakaya

Ice crystals form on the surfaces of backlit bubbles

Rion Nakaya

Pouring 1200F molten aluminum into an anthill?

Rion Nakaya

Dad teaches his daughter how to cast a ring from scrap pewter

Rion Nakaya

Get smart curated videos delivered every week.    
Subscribe