Why was the common fruit fly key to the study of DNA? Read more
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The Fruit Fly
Why was the common fruit fly key to the study of DNA?
The Thermometer
A tool used by chemists, cooks and doctors - the thermometer
The Needle
An instrument designed to help but feared by many
The Barometer
An examination of a tool most vital to meteorology - the barometer
Scales
A tool vital to commerce and science laboratories - balances and scales
X-Rays
The oldest surviving X-ray equipment was made in 1896 by Dr John Reynolds
