Google earns most of its money from sales of advertising on its search engine.

VOA: special.2009.07.17

Inside the car, they should open a window a little for fresh air and turn on the engine for ten or fifteen minutes every hour for heat.

VOA: special.2010.01.05

He made sure the engine on the "Winnie Mae" was perfect.

VOA: special.2009.03.18

first stage engine on ascent. Proceed.Beautiful.Twenty-six .

VOA: special.2009.07.15

Engineers discovered the problem during fueling, and worried that any excess hydrogen on the launch pad could cause an explosion during engine ignition.

VOA: standard.2009.03.15