To make their lives on the island easier, the Professor was always inventing things. Which of these was NOT one of his inventions?

In 2014, Mental Floss put together a list of the 11 best inventions of the professor on the series, which included a lie detector, a washing machine, a battery charger and a Geiger counter. Not bad for a botany expert.

Asked by Tom Cohen · Last updated 5 years ago · 22.4K views