1, Reaumur was also one of the great naturalists of his time.

2, Reaumur knew that steel is more brittle than pure iron and connected this with the impurities in it.

3, One area to which this drew Reaumur was iron and steel manufacture.

4, Reaumur also worked extensively on ceramics, again because of the commercial potential.

5, Reaumur was concerned also with trying to make cast iron less brittle.

6, In the history of science, Reaumur is also remembered for his thermometer.