30
A TV remote control can seem like a magic
wand if you don’t know how it works. This
fun challenge shows how it has to do with
invisible light called infrared.
1
YOU WILL NEED
TV
TV remote control
Small hand-held mirror
Smartphone (optional)
IT’S ON! I T ’S ON!
INVISIBLE
LIGHT BEAMS
Try to turn on the TV with
the remote control pointing
in the wrong direction.
It will be impossible.
US_030-031_Invisible_light_beams.indd 30 12/09/2018 15:49