lesson 2 and 3 bio

an optical instrument consisting of lens or combination of lenses for making enlarge images of minute objects.

meaning an instrument for viewing what is small.

Dutch spectacle makers, invented the microscope in 1597

described the principles of lenses and light rays. He developed both instruments and used the telescope to observe the skies. He was the , “father of observational astronomy” and “father of scientific method”.

developed simple microscope that can magnify up to 270 times.he saw bacteria, yeast, blood cells and many tiny animals swimming about in a drop of water. He was the “father of microscopy”.

known for Micrographia that contains his studies with microscope which was published in 1665. He used single lens microscope made of gold and leather and illuminated by candle. It was the first light microscope.

invented the first electron microscope

Meaning of TEM

SEM meaning

curved glass used to make microscopes

(and glasses etc.) It bends light and focus it in one spot.