This was cooled to below 3K and set in a magnetic field.

To get liquid water you must cool it below the dew point.

The cold water is passed over some sort of rolling cylinder cooled to below 0C.

They have to stay cooled down below their critical temperature.

In the year 1721 he discovered that water can be cooled below its freezing point without actually turning into ice.

Water also has a remarkable tendency to expand, if it is cooled below 4 C.

However, they cannot be liquified by pressure unless cooled below their critical temperature.

If cooled below this temperature, the solder will not flow.

Sophisticated scientific equipment is needed to cool something below a few degrees Kelvin.

Thus as water cools below 3.98 C it decreases in density and will rise.