sq. cm

If for instance the chimney has an area of cross-section of 12 sq. cm.

Even if they had been sufficiently strong and stiff, the total surface of both wings and tail was but 2601 sq. cm.

A compact sample of crepe as received from the East will give breaking strain of over 30 kilos per sq. cm.

It is then collected on a filter cloth, wrapped in a press cloth, and submitted to a pressure of about 50 kilos, per sq. cm.

The mass is next enveloped in a press cloth and submitted to a pressure of 90 kilos, per sq. cm.