February 12, 2019

Why do cars need gasoline?

Although more and more cars have electric engines (or hybrid gas electric ones) to save on fuel costs and cut down on exhaust that contributes to […]
February 12, 2019

What is the Solar Impulse?

A Swiss team of engineers and pilots has developed the Solar Impulse, a spindly airplane that soars on the power of sunshine. Solar panels line nearly […]
February 12, 2019

Who was Thomas Edison?

Thomas Edison is famous for inventing the light bulb in 1878 in New York, USA. Thomas Edison didn’t invent electricity – a natural form of energy […]
February 12, 2019

Why do hot-air balloons float?

Hot-air balloons are the oldest type of flight technology (pre-dating the airplane by more than 120 years) for a reason: the principle behind “lighter-than-air” flight is […]