11.   DaimlerChrysler engineers used supercomputers to optimize the body and structural rigidity of the new convertible, which the company says results in a dramatic reduction in bending.

12.   Emulation programs have long been used by engineers to help them design new computer systems.

13.   Engineers use computer-aided design systems to create everything from cell phones to airplanes.

14.   Engineers use its products to design objects such as automobile parts, telephones, and industrial machinery, reducing the time it takes to bring a product to market.

15.   Engineers use it to analyze the external forces that act on structural surfaces like floors or the skin of airplane wings.

16.   Engineers use the machines to create prototypes for automotive and aerospace designs.

17.   Engineers used the Internet to consult daily with companies in other countries that were part of the spar construction team.

18.   He notes that engineers have already used birdlike designs to improve the efficiency and reduce the noise of helicopter blades.

19.   In general, scientists devote themselves to studying nature and unraveling its secrets, while engineers use science to rearrange nature in the service of humanity.

20.   In hopes of eliminating the problem, engineers used inert nitrogen gas instead of compressed air to move the fluid when making new gyroscopes to be installed on Hubble.