Science doesn't understand how ice forms (video)

News Releases


WASHINGTON, May 6, 2024 — This video contains incredible macro footage of supercooled water droplets nucleating ice. All George wanted to do was make a crystal-clear ice cube. Instead, he ended up rediscovering dendritic crystal growth, a beautiful phenomenon first described in the 17th century. You’ll never look at your freezer the same way again.

Youtube ID: 24TB1vPuzIU

Reactions is a video series produced by the American Chemical Society and PBS Digital Studios. Subscribe to Reactions at and follow us on X, formerly Twitter @ACSReactions.


The American Chemical Society (ACS) is a nonprofit organization chartered by the U.S. Congress. ACS’ mission is to advance the broader chemistry enterprise and its practitioners for the benefit of Earth and all its people. The Society is a global leader in promoting excellence in science education and providing access to chemistry-related information and research through its multiple research solutions, peer-reviewed journals, scientific conferences, eBooks and weekly news periodical Chemical & Engineering News. ACS journals are among the most cited, most trusted and most read within the scientific literature; however, ACS itself does not conduct chemical research. As a leader in scientific information solutions, its CAS division partners with global innovators to accelerate breakthroughs by curating, connecting and analyzing the world’s scientific knowledge. ACS’ main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive press releases from the American Chemical Society, contact

Note: ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies.

Media Contact

ACS Newsroom