A defibrillator is a machine first shown in 1899 that is used to revive people who are close to death by delivering an electric shock to the heart. There are different types of defibrillators that can be used in various ways, and they are now commonly found in many public places, though proper training is required to operate one safely and effectively.

1. Defibrillator

2. Defibrillator
This is a machine which was first
shown in 1899. It is used to bring
people alive when they are really close
to the dead . It was a really important
invention. There are a lot of different
ways to use it, and there are also
many types of them.
Nowadays there are defibrillators in
almost any place. To use it you need
to study a lot, and you have to know
how to make it work perfectly, or you
may cause an accident