The same principle is true for window glass. By itself, glass is a poor insulator. Test it yourself by touching the inside of a window on a cold day. If it’s single-pane glass, it will feel cold.

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 ...

I wouldn’t fancy using a phone charger made of glass! Metals such as copper and ... poor conductor of electricity as it is an electrical insulator. This means you don’t get an electric shock ...