1.   He was known for research that used electron microscopes, which project electron beams through thin biological specimens to form images on a fluorescent screen and on film.

2.   Many modern door openers have electric eye units that project a beam between a sender and receiver module.

3.   Shoppers can don a body suit and enter a dark booth, where light beams are projected on them.

4.   There, a massive nuclear accelerator was projecting beams of particles onto a square centimeter film of tin or tungsten or some more exotic isotope.

5.   Laboratory laser beams are projected into space to help astronomers focus telescopes and are fired directly up, the spokesman said.