Jizz

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Exercise for strength

Exercise for strength

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Melanin is also responsible for skin and hair colour

Melanin is also responsible for skin and hair colour

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Romans used Cranks to power sawmills as early as the 3rd Century

Romans used Cranks to power sawmills as early as the 3rd Century

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The Romans used Cranks to transfer power from waterwheels to saw-blades in the 3rd

The Romans used Cranks to transfer power from waterwheels to saw-blades in the 3rd century

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Multitasking masters

Multitasking masters

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The average shower uses 20 gallons of water

The average shower uses 20 gallons of water

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