Upload
jesse-mccoy
View
213
Download
0
Embed Size (px)
DESCRIPTION
Intro Stuff (That means “boring stuff..”) Ancient Astronomy Ancient Astronomy –The 1 st REAL Physical Science »Besides “falling over” »Some early views –Ptolemy –Copernicus –Galileo –Kepler! –Newton!
Citation preview
Circles & GravityCircles & GravityWhat the heck do they have to What the heck do they have to
do with each other?do with each other?AstroAstro
10/15/0810/15/08©2007 Daryl Taylor©2007 Daryl [email protected]
Intro StuffIntro Stuff(That means “boring stuff..”)(That means “boring stuff..”)
Ancient AstronomyAncient Astronomy– The 1The 1stst REAL Physical Science REAL Physical Science
» Besides “falling over”Besides “falling over”» Some early viewsSome early views
– PtolemyPtolemy– CopernicusCopernicus– GalileoGalileo– Kepler!Kepler!– Newton!Newton!
Intro StuffIntro Stuff(That means “boring stuff..”)(That means “boring stuff..”)
So, where does Tyco Brahe fit in?So, where does Tyco Brahe fit in?– Aristocratic Moron (Autistic)Aristocratic Moron (Autistic)
»Died from a burst bladder!Died from a burst bladder!– Stayed up EVERY night of his lifeStayed up EVERY night of his life
»Mapping the skyMapping the sky»Keeping dataKeeping data
– Volumes & VOLUMES of dataVolumes & VOLUMES of data
Intro StuffIntro Stuff(That means “boring stuff..”)(That means “boring stuff..”)
Kepler?Kepler?– Genius - mathematicsGenius - mathematics– Astronomy - hobbyAstronomy - hobby– Made a living being an Made a living being an astrologerastrologer!!– Was puzzled by some thingsWas puzzled by some things
»But, had no dataBut, had no data
Intro StuffIntro Stuff(That means “boring stuff..”)(That means “boring stuff..”)
Stole Tyco’s stuffStole Tyco’s stuff– Hired a coupla street thugsHired a coupla street thugs
Studied data for Studied data for 19 years19 years.. Published his 3 “Published his 3 “LAWSLAWS””
– NO EXPLANATIONS!NO EXPLANATIONS!– Was NOT a real scientist!Was NOT a real scientist!
Intro StuffIntro Stuff(That means “boring stuff..”)(That means “boring stuff..”)
3 LAWS? 3 LAWS? [Block 4][Block 4]
– EllipsesEllipses– Equal AreasEqual Areas– K = TK = T2 2 / R/ R33
Math or Science?Math or Science? Video Clip!!! YIPPEE!!!Video Clip!!! YIPPEE!!!
Real StuffReal Stuff11stst Law Law (Block 8)(Block 8)
–Planets travel in ELLIPTICAL Planets travel in ELLIPTICAL orbits, not circular.orbits, not circular.
–DefinitionsDefinitions»Circle – ‘r’Circle – ‘r’»Ellipse – ‘a+b’Ellipse – ‘a+b’
–Why?Why?
Circle, duh…
R
ryx 22
Ellipse,
F1
Cby
ax
2
2
2
2
F2
Earth
a b
CONSTANTba
Real StuffReal Stuff22ndnd Law Law
–Planet makes Planet makes ’s with =A’s.’s with =A’s.–Say WHAT?Say WHAT?–Why?Why?
»Gif1&2Gif1&2
Real StuffReal Stuff
Real StuffReal Stuff AristotleAristotle
Real StuffReal Stuff PtolemyPtolemy
Real StuffReal Stuff 33rdrd Law Law
– K=TK=T2 2 // RR33
– DefinitionsDefinitions»RR»TT
– AU?AU?»Taylor’s Constant!Taylor’s Constant!
– Why?Why?
3
2191098.2
msxkK
3
2
1AUyrkT
Real StuffReal Stuff Newton’s Synthesis – Bored Board!Newton’s Synthesis – Bored Board!
221
rmmGFg