1.   The power generated on the Moon is then transmitted by microwave beam back to Earth.

2.   A microwave beam penetrates the skin, causing water molecules to vibrate.

3.   A radar system on the craft could penetrate the surface ice with microwave beams and determine boundaries between ice and water and then the rocky interior.

4.   Just getting a clear telephone signal via the microwave beams has been difficult, residents say.

5.   So the researchers passed a microwave beam through their meta-material to explore its properties.

6.   The balls were created in a metal chamber into which an intense microwave beam was ducted.