11.   A study of the mechanical damping and shear modulus under free vibration can be made using a torsional pendulum.

12.   Approximate measurements of the enthalpy change for reactions in solution can be made using a simple calorimeter such as a polystyrene beaker.

13.   They could discuss the problems of skinning an animal, or scraping skins to make leather using only stone tools.

14.   And Fuji said that since its disks would be made using technology already used to produce videotapes, the costs would be low.

15.   And it was made using different strains of the virus, gathered from cats in the United States and Japan.

16.   Another explosive variant based on a nitrated form of a common chemical can be made using commercial urea.

17.   And, he said, those successful tests were made using special frames designed to hold the shattered glass.

18.   Any researcher would retain ownership rights on new discoveries they make using the cells.

19.   At issue is how Philip Morris makes cigarettes using reconstituted tobacco, or sheets made from the non-leaf parts of the tobacco plant.

20.   Bob Hill, a professor at the University of Northumbria, also believes progress can be made using existing technology.