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how can certain drugs cause weight gain

A number of prescription drugs are associated with weight gain. ... read more

what is life

Look around you. All the stuff, or matter, in the world is either living or non-living. Stuff such as rocks, metals, plastic, water, and air are non-living. ... read more

panning for gold

How the 49ers found fortune in the famous Californian gold rush. ... read more

if a nucleus were the size of a marble how big would the atom be

If an atom’s nucleus were the size of a marble, the atom would be over 120 metres across. ... read more

anatomy of a spanish conquistador

How a small army of Spaniards brought an entire civilisation to its knees. ... read more