HOLLAND
Chat with our AI personalities
Christiaan Huygens
to tell time LOL
His pendulum clock was patented in 1657.
Light has always been recognized since before recognition of science at the dawn of man. The key understanding of light and its composition today was due to the theories and tests of Christiaan Huygens and Sir Isaac Newton.
1656 was when the first "practical" clock was invented by Christian Huygens