- The dishwasher was invented in 1889.
- There are around 30 milligrams of caffeine in the average chocolate bar while a cup of coffee has around 100 to 150.
- Porsche also builds tractors.
- A nanosecond is one billionth of a second.
- Swiss mathematician Leonhard Euler was probably the most influential mathematician of the 18th century, making discoveries in graph theory and introducing many modern mathematical words and notations among other things..
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