How was the calculator made?

Answer 1

There is 5 tons of steel laid down in a Nuclear Testing Ground, then the U.S drops 5 Nuclear Bombs on top of the steel producing 5 million scientific calculators. Only way to get that much power in a small device. Honestly, that's a no brainer ;).

Answer 2

It was invented in China? Think if its that hard.Use your brain..

Answer 3

because we are smart