THE workmen had just finished removing wallpaper, retexturing and painting our bathroom. That evening, however, when my husband examined the work, he noticed that in the upper-right-hand corner the paint on one wall looked streaked. He asked me to point this out to the workmen the next morning so they could repair or repaint this area.
I did this when they arrived, and they went to see what was needed. About fifteen minutes later, they called me into the room and showed me something quite astonishing. When they turned on the large round light bulbs that hung in a row above the mirror, the streaks appeared on the wall. With the lights off, the streaks disappeared. …