Radiography Practical

Today is my first time having a radiography practical...
i'm the second group. the radiology technician, taught us about the component of x-ray...
after the 45 min of lecturing, he show us the balloon fill with water that was taken by the first group.
for our group, he suggested to take phone as he object.
one of my classmate took out his iphone as the object.
the x-ray of iphone was fantastic...
haha...

 Balloon fill with water...

Iphone 3