21.   If the beam is broken, the unit will automatically cut power and stop the door from moving.

22.   One issue is how thick the marker beam should be for a pilot to see it.

23.   Over the years, Miracl has been improved so that its beam is steady enough to track and hit satellites orbiting hundreds of miles overhead in space.

24.   Some say a battered beam may be too raw for a memorial.

25.   Taya believes a composite materials beam could be two to three times more rigid than a board cut from a log.

26.   Such beams are a first for satellite TV.

27.   The beam is wet where a steel column meets it.

28.   The beam is about six feet wide.

29.   The beams are to serve as foundation pilings for a parking deck for the Hertz rental car agency.

30.   The ceiling beams are raw wood without so much as a coat of sealer.