1.   -- but it was a powerful magnet.

2.   But for all its shortcomings, competition is a powerful magnet.

3.   But despite its problems, Bangkok is a powerful magnet for foreign investment, and for cultural, educational, financial, commercial and industrial supremacy in Thailand.

4.   Charismatic Protestant churches are becoming powerful magnets for Hispanics, many former Roman Catholics, who find the emotional fervor of worship more in tune with their culture.

5.   Despite stories like this one, the United States is still a powerful magnet for the poor of Central America.

6.   In this barren region, bus stops are powerful magnets for economic activity.

7.   MRIs contain powerful magnets that make the positive-charged proton particles in the body line up in the same direction.

8.   Over the last two decades, it has become a powerful magnet for performers of early music, not least from the United States.

9.   Powerful magnets might have coils of superhard copper that resist being stretched by the strong magnetic field.

10.   Synchrotrons, like the Advanced Photon Source at Argonne National Laboratory near Chicago, create X-rays by using powerful magnets to bend an electron beam around a circular track.