The Tunnel of Samos

The video discusses the ancient engineering feat of the Eupalanian aqueduct on the island of Samos. In the 6th century BC, under the rule of Polycrates, the engineer Eupolinos was tasked with constructing an aqueduct to bring freshwater from an inland spring to the coastal city. The challenge was to tunnel through a mountain without modern tools. Eupolinos used geometry to ensure the tunnels met in the middle, creating the first tunnel excavated from two sides using geometry. This achievement stands as a testament to ancient engineering prowess.

What was the main challenge faced by the people of Samos in the 6th century BC?

• Harsh weather conditions

• Inland spring far from the city

• Lack of food supply

• Frequent invasions

How did Eupolinos plan to ensure the tunnels met in the middle of the mountain?

• By following the natural terrain

• By using geometry and right angles

• By employing a large workforce

• By using modern tools like lasers

What geometric concept did Eupolinos use to measure angles accurately?

• Circle theorems

• Similar triangles

• Parallel lines

• Pythagorean theorem

What was the significance of the Eupalanian aqueduct?

• It was the first aqueduct to use water wheels

• It was the first tunnel excavated from two sides using geometry

• It was the longest aqueduct in ancient Greece

• It was the first aqueduct to use concrete

How long has Eupalinos's aqueduct stood as a testament to ancient engineering?

• Less than a thousand years

• More than two and a half thousand years

• Over a thousand years

• About five hundred years