'In 1656 Dutch scientist Christiaan Huygens made the first pendulum type of this device'
a clock
GOING DUTCH: In 1656 Dutch scientist Christiaan Huygens made the first pendulum type of this device
In 1656 Dutch scientist Christiaan Huygens made the first pendulum type of this device
In 1656 Dutch scientist Christiaan Huygens made the first pendulum type of this device
GOING DUTCH
a clock
GOING DUTCH