Le temps est la plus continue de toutes les variables continues. Or, il est presque aussi
certain qu'une seconde suit l'autre que les êtres humains considèrent pour leur part le temps …

Time is the most continuous of all continuous variables. And yet it is almost as certain as one
second following another that humans view time as discontinuous, and that our lives are …

Almost nobody noticed. On New Year's Day 1972, every second of every official clock was
“shortened” by a small but significant amount. The velocity of planet earth was slowing, and …

Chad Orzel's book is a lively introduction to timekeeping, from the Newgrange passagetomb
to caesium-133 and its possible replacements. The story takes us, by way of Stonehenge …

From the ice-age recordings of moon cycles and the earliest calendars, to modern
wristwatches and quantum clocks, time and its effects have always enthralled mankind …

The calendar we take for granted today has many a tale to tell. Spanning nearly 4000 years,
it's had its fair share of ups and downs. Before the third millennium BC, the calendar hadn't …

Once I was a young girl growing up in a small village in Central Africa. We did not have a
clock. The sun told us what to do. The sun should not rise before you do. A certain kind of …

Measurement of time can be divided in three phases, according to what was or is used.
Early man used the Sun and Moon for time. In day time when the Sun was shining they …

Disposer d'une «chronologie» universelle permettant de comparer des événements
apparemment sans rapports entre eux n'était pas ressentie comme une nécessité. En Chine …