Geocentric model coelestium" ("On the Revolutions of the Heavenly Spheres"), which posited that the Earth and the other planets instead revolved around the Sun. The geocentric system was still held for many years afterwards, as at the time the Copernican system did not offer better predictions than the geocentric system, and it posed problems for both natural philosophy and scripture. The Copernican system was no more accurate than Ptolemy's system, because it still used circular orbits. This was not altered until Johannes Kepler postulated that they were elliptical (Kepler's first law of planetary motion). With the invention of the telescope in 1609,
Term sheet purchase agreement and related agreements will cover in detail. The advantage of the abbreviated term sheet format is, first, that it expedites the process. Experienced counsel immediately know generally what is meant when the term sheet specifies "one demand registration at the issuer's expense, unlimited piggybacks at the issuer's expense, weighted average antidilution"; it saves time not to have to spell out the long-form edition of those references. Second, since the term sheet does not propose to be an agreement of any sort, it is less likely that a court will find unexpected promissory content; a "letter of intent" can