February 11, 2019

What is the Apple II?

Apple II is the first successful mass-produced microcomputer designed in 1976. The size of Apple II is smaller than a suitcase. It offered simplicity, the ability […]
February 12, 2019

Why aren’t all batteries rechargeable?

You probably ask this question every time the double A’s Wii remote right when you reach the final level. To get to the bottom of why […]
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 […]