Human Body Science

The heart is a remarkable double pump with two pumping chambers, the left and right ventricles.It contracts automatically to squeeze jets of blood out of ventricles and through the arteries.During an average lifetime, the heart pumps 200 million of litres of blood-enough to fill New York's central Park to depth of 15m.

Christiaan Huygens was leading figure of the Golden Age of Dutch science in the 17th century, making contributions in many fields
Huygens built the first accurate pendulum clock.

As the Sun moves through the sky we can clearly see the passing of time.Until 1967 the movement of the sun was our most accurate way of measuring time.