Home / Editor's Pick /

Second form of liquid discovered

01:00 PM
February 6, 2022

Strange physics
Second form of liquid discovered

It is simple to remember the three forms of matter: solid, liquid, and gas. Except studies have discovered a second form of liquid water.

The idea of a second form of liquid water was first proposed three decades ago by researchers at Boston University. The theory suggested that both forms interconvert under high pressure below freezing.

Now, the theory of a liquid-to-liquid transition has been proven using sugar water. Using pure water made detecting the change nearly impossible, leading to researchers in Japan to turn to a sweeter solution.

rainThe second form of liquid has unique density properties, and only forms under specific conditions.

Using sugar water, the team supercooled the liquid under pressure before decompressing different samples. One of these formed a solid glassy structure which transformed into a liquid when pressure was released.

Sharp differences in density was noted as the pressure changed. This is the liquid to liquid transition, from a high- and low-density liquids.

Due to the use of sugar this still does not constitute ironclad proof of liquid-to-liquid transitions in pure water, but is another piece of evidence in support of its existence.

Weather & Radar USA editorial team
More on the topic
Autumn frost in a field
Tuesday, September 9, 2025

Meteorological autumn

The average first frosts in the U.S.
On the left, a satellite image of a hurricane over the sea; on the right, a man in a clearance vehicle clearing debris and food in a flooded supermarket.
Friday, August 29, 2025

Twenty years ago today

Hurricane Katrina hit Gulf Coast
Wednesday, September 10, 2025

Unusually quiet

Why is it so calm in the Atlantic?
All weather news
This might also interest you
Hurricanes approaching the coastline can cause extensive impacts, including flooding, even before landfall.
Saturday, September 13, 2025

Knowledge is power

What to know this hurricane season
Friday, September 12, 2025

Stormy Rockies

Stormy Rockies
Downburst shown on the WeatherRadar.
Sunday, September 14, 2025

Downbursts

What are they & why are they dangerous
All articles
Weather & Radar

www.weatherandradar.com

instagramfacebookthreadsContact uslinkList
Privacy policy | Legal info | Accessibility statement