Main content
Why does ice float?
Ice is the only common solid that floats on its liquid form. Why? Professor Brian Cox explains it's all down to a hidden force of nature.
Duration:
This clip is from
More clips from The Universe in a Snowflake
![]()
Honey hunters in Nepal
Duration: 02:05
![]()
Why do bees build hexagonal honeycombs?
Duration: 02:31
![]()
Why Does Gravity Make Earth Round?
Duration: 02:22
More clips from Forces of Nature with Brian Cox
![]()
The Serengeti—The Pale Blue Dot
Duration: 01:52
![]()
Why Do Hot Things Glow?—The Pale Blue Dot
Duration: 02:15
![]()
What Is A Moonbow?—The Pale Blue Dot
Duration: 02:09
![]()
Why Is Hydrogen Pink?—The Pale Blue Dot
Duration: 02:06
