哥白尼,开普勒,伽利略,牛顿简介【英文】.ppt

Keplers Laws Planets travel around the Sun in elliptical orbits with the Sun at one focus. A line from the planet to the Sun sweeps out equal areas in equal times. The square of a planets period in years and its distance cubed are proportional. How Did Kepler Do It? One Mars year (687 days) = 2 Earth years (730 days) minus 43 days After 687 days, Mars is in the same place in its orbit, but Earth is not Mars appears to be in a different location in the sky How Did Kepler Do It? Tycho Brahe 1546-1601 Tycho really did live the outrageous lifestyle shown in the video Really did have a gold nosepiece. He died the way he lived. He was hitting up some noble personage for patronage and support and, fearing that somebody else might upstage him, refused to leave to go to the bathroom. He developed a bladder infection and died. A Neat Coincidence that’s Too Neat Rosenkranz and Guldenstern are Dead Who were they? Hamlet Hamlet’s Uncle has: Murdered his father Married his mother Usurped Hamlet’s Crown Hamlet is Depressed How Much does Hamlet Know? Enter Rosenkranz and Guldenstern Hamlet is supposed to take place in late Viking times (ca. 1000 A.D.) Rosenkranz and Guldenstern are student friends of Hamlet’s from the University at Wittenberg Which doesn’t exist yet Recruited by Hamlet’s uncle to console (spy on) him. Exit Rosenkranz and Guldenstern The king sends the trio to England with a sealed letter instructing the king of England (a relative) to kill Hamlet Hamlet switches letters on his ex-friends Hamlet has it out with the king Bodies all over the stage, curtain falls See you at the cast party What does this have to do with the planets? Tycho had published a widely-sold book Modest chap that he was, he included a portrait and 16 crests showing his lineage over four generations Tycho was Danish His estate was right across the strait from Elsinore Castle Tycho and Shakespeare Guess what two of the names on the crests are Tycho and Shakespeare had a mutual acquaintance Cl