cine stie sa traduca Inainte de aceasta descoperire, timpul era inseparabil de evenimente, cel mai important fiind considerat rotirea Pamantului in jurul Soarelui. Pe vremuri, in antichitate, exista doar "timpul local", nu se stia de GMT. Daca iti dadeai intalnire cu cineva, nu exista "sfertul academic", ci eventual "ne vom vedea la apusul soarelui". Miscarea astrelor era cea mai sigura cale spre determinarea si organizarea timpului. Omul obisnuia pe vremuri sa citeasca informatiile in functie de fenomenele naturii, gesturile si obiceiurile animalelor s.a., pana la crearea unor obiecte rudimentare, dar care indicau cu precizie fiecare secunda. In jurul anului 300 i.C, preotii si astronomii asiro-babilonieni au impartit ziua in 24 de ore cu durata egala si au divizat orele in 60 de minute.

Se pare ca primul instrument folosit de om pentru a masura timpul a fost un orologiu solar, un fel de meridian inventat in Egipt in 2000 i.C. Acesta consta dintr-un obiect plat luminat de soare, care isi proiecta umbra pe un cadran pe care erau desenate punctele orare. Cateva secole mai tarziu s-a nascut adevaratul ceas, format dintr-un ax drept, numit gnomon, care isi proiecta umbra pe un plan orizontal. Observand pozitia umbrei, care se muta de la est spre vest, urmarind traiectoria soarelui, oamenii reuseau sa stabileasca ora. Tot egiptenii au inventat un alt ceas, si anume orologiul cu apa.

Apoi, s-a ajuns la inventarea clepsidrei si, ulterior, a ceasului care functioneaza pe baza unui sistem mecanic. Primele ceasuri mecanice au fost construite in Europa in jurul secolului al XlII-lea. Acestea masurau timpul actionand o sonerie in anumite momente ale zilei si inca nu aveau cadrane sau sageti. Cadranul a fost aplicat pentru prima data unui orologiu mecanic in 1364, de italianul Giovanni Dondi. Orologiul sau era dotat cu sapte cadrane care, in afara de faptul ca indicau ora, aratau si miscarea planetelor.

Before this discovery, time was inseparable from events, the most important being the rotation of the Earth around the Sun. In ancient times, there was only "local time", not known by GMT. If you were dating someone, there is no "academic quarter", but eventually "we will see each other at sunset." Moving stars was the surest way to determine and organize time. Man used to read information according to the phenomena of nature, gestures and habits of animals, until the creation of rudimentary objects, but which indicated with precision every second. Around 300 BC, Assyrian-Babylonian priests and astronomers divided the day into 24 hours with equal duration and divided the hours into 60 minutes.

It seems that the first instrument used by man to measure time was a solar clock, a kind of meridian invented in Egypt in 2000 BC. It consists of a flat object illuminated by the sun, which casts its shadow on a dial on which the time points were drawn. A few centuries later, the true clock was born, consisting of a straight shaft, called a gnome, which casts its shadow on a horizontal plane. Observing the position of the shadow, moving from east to west, following the sun's trajectory, people were able to set the time. The Egyptians also invented another watch, namely the water clock.

Then came the invention of the hourglass and, subsequently, the clock that operates on the basis of a mechanical system. The first mechanical watches were built in Europe around the twelfth century. They measured the time by ringing at certain times of the day and still had no dials or arrows. The dial was first applied to a mechanical watch in 1364, by the Italian Giovanni Dondi. His watch was equipped with seven dials which, apart from indicating the time, also showed the movement of the planets.