It consists of hot, weak material that can be deformed like silly putty.

The problem for a radiological terrorist is to get his "hot" material inside people's bodies where it will do the most harm.

The extrusion process can be done with the material hot or cold.

This hot added material cools down by conduction and convection of heat.

In our terms we found a cool way of dealing with hot material.

He has just come, he explains, from the studio and wants her to hear some "hot" new material.

This is what happens when a hot material makes contact with a cold material.

Special tools had to be developed for remote handling of the hot materials.

All hot material was moved at ground level on live roller paths.

A hot material has more energy per molecule.