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That has not lived in vain ... Dorina and Hypatia


Upon receiving your invitation, I was surprised and very flattered. Tycho suggested that I join him as an assistant in his astronomical observations and calculations. The great astronomer was interested in the rigor of my studies, and me from him, the accuracy and thoroughness of his observations. Tycho was

person irritable, suspicious and arrogant aspects of his character in his youth led him to lose his nose in a duel with the sword, because a discussion about mathematics. Precise and unconditional

sky watcher since childhood, Tycho collected abundant data about planets, stars and comets. Having witnessed the emergence of " Stella Nova", years later still passionate when describing the moment of discovery: " In my practice, I was watching the stars in a cloudless sky, I noticed that a new star extraordinary, that exceeded the other in bright, almost glowing directly above my head, and because, almost from my childhood, I had perfect knowledge of all the stars of heaven, there is no great difficulty in achieving such knowledge, it was entirely clear to me that in that place in the sky never before been any star even the smallest, and, much less one as remarkably bright as it . "

Barely instruments other than a sphere and a compass, Tycho smashed with this discovery, the Aristotelian principle of the immutability of the heavens.

He never accepted the new Copernican system, but wanted to establish a compromise between it and the consolidated system Ptolemy. Tycho assumed that the five planets revolved around the sun, which, along with the planets, was once around the Earth once a year. Therefore, the Earth was still the center of the universe ...

The October 13, 1601, the great astronomer attended a banquet the Emperor in Prague. Not wishing to violate the protocol leaving the table before his host, resist the urge to urinate until the point of falling ill. His agony lasted eleven days with fever and delirium in which he kept repeating "Ne vixisse videar frustrated" ("You have not lived in vain.")

Before he died, and to ensure that her wish would fulfilled, Tycho gave me access to all data had been collected carefully over his life, and though their model is not correct, the information I had provided proved essential for my further description of planetary motion.

But that's another story ...

Johannes Kepler.