11.   That technology includes the composite materials used for the outer surface of the plane that absorb radar instead of reflecting it back to defensive missile sites.

12.   The material is called stained glass because the outer surface is painted with an enamel called silver stain.

13.   The outer surface attracts this moisture, spreading it so that it dries quickly.

14.   The outer surface of the observatory retained much of its reflective silver and gold appearance.

15.   The outer surfaces on the top and bottom are slightly browned, while the inside stays a little crisp.

16.   When the stars collapse under their own gravity, they become neutron stars with a rigid crust of atoms a mile deep, and an outer surface of iron.

17.   The product is made from a protein that forms on the outer surface of the HIV virus and stimulates antibodies to neutralize or stop the virus from spreading.

18.   The product is made from a protein that forms the outer surface of the HIV virus and stimulates antibodies to neutralize or stop the virus from spreading.

19.   The vaccine is made from a protein taken from the outer surface of the herpes virus.