History of Astronomy |
From inside the book
Results 1-5 of 38
Page
... orbits are concerned, Kepler's three laws(B, C, D) wereidentical with Newton's law of gravitation (A). No onerecognises morethan the mathematical astronomer this feebleness ofthe human intellect, andno one is more conscious of ...
... orbits are concerned, Kepler's three laws(B, C, D) wereidentical with Newton's law of gravitation (A). No onerecognises morethan the mathematical astronomer this feebleness ofthe human intellect, andno one is more conscious of ...
Page
... orbit (the obliquityof the ecliptic) has been diminishing slowly since prehistoric times; and this fact has been confirmed by Egyptian and Chineseobservations onthelength of the shadow ofavertical pillar,made thousands of years before ...
... orbit (the obliquityof the ecliptic) has been diminishing slowly since prehistoric times; and this fact has been confirmed by Egyptian and Chineseobservations onthelength of the shadow ofavertical pillar,made thousands of years before ...
Page
... orbit revolves justonce round the poleofthe ecliptic,and for this reason the eclipses in one cycleare repeated with very slightmodification in the next cycle,and so on for many centuries. It maybethat theneglect of their dutiesby Hi ...
... orbit revolves justonce round the poleofthe ecliptic,and for this reason the eclipses in one cycleare repeated with very slightmodification in the next cycle,and so on for many centuries. It maybethat theneglect of their dutiesby Hi ...
Page
... floatupon water.He determined theratio ofthe sun's diameter toits orbit,and apparently made out the diameter correctly as half a degree. He left nothingin writing. His successors, Anaximander (610547 B.C.) and Anaximenes (550475 B.C.), ...
... floatupon water.He determined theratio ofthe sun's diameter toits orbit,and apparently made out the diameter correctly as half a degree. He left nothingin writing. His successors, Anaximander (610547 B.C.) and Anaximenes (550475 B.C.), ...
Page
... orbit, from fantastic first principles,of which the following are examples: "The circular motion is the most perfect motion," "Fire is more worthy than earth," "Ten is the perfect number."Hewrote nothing, butis supposedto have said that ...
... orbit, from fantastic first principles,of which the following are examples: "The circular motion is the most perfect motion," "Fire is more worthy than earth," "Ten is the perfect number."Hewrote nothing, butis supposedto have said that ...
Other editions - View all
Common terms and phrases
Airy allthe andthat andthe asthe Astronomer Royal Astronomia Nova astronomical units atmosphere atthe attraction axis bright bythe calculations catalogue centre century Chaldĉans Chinese comet confirmed Copernicus detected diameter discovered discovery distance earth eclipse epicycles equatoreal excentric explain fixed stars FOOTNOTES Frauenhofer fromthe Galileo Greenwich Halley havebeen heavenly bodies heavens heliometer Herschel Hipparchus Huggins hydrogen hypotheses inequality instruments inthe isthe John Herschel Jupiter Jupiter's Kepler lawof Lick Observatory light lines lunar Mars mathematical mean motion measured Mercury meteor miles moon moon's nebula Newton ofthese onthe orbit parallax perihelion period photographic physical planet planetary position predicted proper motion Ptolemy records reflector refractor retrograde retrograde motion revolve rotation round satellites Saturn seems solar system spectra spectroscope spectrum spots stellar sun's sunspot supposed surface telescope terrestrial thatthe theearth themoon theory thesame thesolar thesun tobe tothe Tycho Brahe Uranus velocity Venus Verrier William Herschel withthe zenith