Science & Life Notebooks: The Invention of Time

Science & Life Notebooks: The Invention of Time

The existence of time goes back, according to physicists, to the big bang. However, the relationship to time is a very human and personal thing. Throughout its history, Man has never ceased to create tools enabling him to measure and control it, the objective being to plan the life of the community. Through this issue of Science & Life Notebooks, you will discover these many roles as well as its importance in our lives.

Did you know ?

- The Mesopotamians are at the origin of the 7-day week as we know it.

- The Julian calendar named after Emperor Julius Caesar was created in -46 BC. AD and was used until the 16th century!

Riddles

- Cervantes and Shakespeare both died on April 23, 1616 but not on the same day ...

- In the world of watchmaking, the Roman four is written III and not IV ... but for what reason?

The inventions

- The H-4: this marine chronometer created by John Harrison revolutionized the world of navigation in 1762, by allowing sailors to calculate longitude at sea.

- The portable sundial: this Byzantine dial, ancestor of the watch, allowed travelers to position themselves on the desired latitude and thus be able to read the time.

Science & Life notebooks: The invention of time. January 2013. On newsstands and by subscription.


Video: Tajemný svět kvantové fyziky E01 Einsteinova noční můra