LIGHTNING ROD
INVENTOR: Benjamin Franklin
YEAR: It was invented in 1752.
IMPROVEMENTS:
It
is used to protect structures from lightning strikes.
It’s
not very expensive.
It
is still used nowadays, so it is very efficient.
They
don’t take up much space.
They
can cover up to 200 metres in diameter.
DISADVANTAGES:
In the 70s there was a type of lightning rod (radioactive
lightning rod) that affected people's health and polluted a
lot. But in 1989 this type of lightning rod was banned, so
contemporary lightning rods are safe.
lot. But in 1989 this type of lightning rod was banned, so
contemporary lightning rods are safe.
Created by Pavel Burlacu, Manuel Gorostiza and Nicolas Cousillas
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