New windows can insulate better than most walls, and some can even survive being hit with a two-by-four shot from a cannon ...

Equipment: A playing card, a glass, colored water and a tray. What it does: The card is placed on the glass of water and they are turned upside down. The water stays in the glass.

The key enabling technology is thin panes of glass—sandwiched between thicker standard glass—which exist because of the same manufacturing and chemistry breakthroughs that made possible the ...