start by seeing Sonar.
an x-ray
What can you sound be used for ah well it can be used for a lot of things scientists can use sound energy to do things like to figure out how deep the ocean floor is .Doctors use sound energy to see inside the human body
X-Ray Machine.
Doctors can use percentages in a great many number of ways. Doctors can use percentages to calculate the probability for having a certain disease.
They use SONAR
vibrations of sound
it doesnt need battery because the metal is connected to it.
osilliscope
So they can see little particles inside your pupal!!
doctors use the stethoscope as the instrument that a doctor puts in their ears and listens to your heart sound
To see through things. Doctors use them to see through casts, and skin. Usually to see if bones are broken or not.
To see an unborn baby in the womb.