Sm rt
dgets
G
Jo Nelson Rupert Van Wyk
Sm rt thinking
It took smart thinking to come up
with
these gadgets! How
were
they invented? computers cameras 2
telephones TVs 3
Automatic calculator
Around 200 years ago, a Maths teacher called Charles Babbage wanted to fix a problem.
4
I’ll invent something that can do tricky Maths sums!
5