They knew how to make iron. They knew how to use steam engines and other machinery.

VOA: special.2009.04.16

"In the Philippines and all over Asia, fertilizer has been overused and misused because no one explains to them how much they need or how to use it."

VOA: standard.2010.07.28

Ruhli and his team of researchers at the Swiss Mummy Institute have just completed the first feasibility study of how they could use the technology to reveal a mummy's secrets, without damaging the mummy.

VOA: standard.2010.05.05