A astronomia ajuda a medir o tempo.
Autor: amantesdoceu | Publicado: 2011-06-29T05:59:00-07:00

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Quase todos os povos da antiguidade &nbsp;Tinham conhecimento sobre os &nbsp;movimentos dos astros. Eles percebiam que certos fenômenos ligados&nbsp; ao sol se repetiam a cada &nbsp;intervalo de aproximadamente365 dias. O sol,por exemplo,nasce sempre na direção leste,mas a cada dia,ele nasce numa posição um pouco diferente na linha do horizonte .Esse movimento é periódico ,ou seja o sol&nbsp; se move na linha do horizonte cada dia um pouquinho até chegar a um ponto Máximo em que ele começa a voltar. A duração desse período é de um ano.por causa dessa periodicidade dos movimento,nasceram métodos para marcar a passagem do tempo e surgiram os primeiros calendários.

Ruth, Milene, e Milena.