New News Biology #2

Microscopy

Unites of Measurement:

1 nanometre = 1 metre * 10^-3

1 millimetre = 1/1000 metre

1 metre = 100 centimetres

1 kilometre = 1000 metres

Units In The Real World:

A nanometer is roughly the size of an atom

A millimeter is roughly the size of an ant

A human’s height is usually represented in the unit “metres”

The world’s tallest building is almost (but not quite) a kilometre tall.

Important Fact: Magnification = Image Size ÷ Object Size

Note: ALWAYS use the same units measurement to prevent errors.

The Microscope (used to see small things in detail)

The maximal level of detail on a microscope = its resolution (the shortest distance between two points on a specimen that can still be distinguished as to separate entities)