history of astronomy
Download
Skip this Video
Download Presentation
History of Astronomy

Loading in 2 Seconds...

play fullscreen
1 / 14

History of Astronomy - PowerPoint PPT Presentation


  • 120 Views
  • Uploaded on

History of Astronomy. Astronomy is the study of e verything in the universe. astron = “star”; nomos = “law” or “arrangement of” Oldest Science Navigation, the North Star doesn’t “move” Predict seasons, Big Dipper – plant crops Timekeeping Keeping track of Time

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' History of Astronomy' - holmes-meyer


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
history of astronomy
History of Astronomy
  • Astronomy is the study of everything in the universe.
    • astron= “star”; nomos= “law” or “arrangement of”
  • Oldest Science
    • Navigation, the North Star doesn’t “move”
    • Predict seasons, Big Dipper – plant crops
    • Timekeeping
      • Keeping track of Time
      • All of our time-keeping conventions are astronomically based:
      • The Year is based on the time it takes Earth to orbit the Sun.
      • The Month is based on the cycle of the Lunar Phases
      • The Day is based on the time it takes the Earth to rotate once on its axis relative to the Sun.
    • Astrology, “predict” human behavior
greeks
Greeks
  • Pythagoras (570 BC – 495 BC) Believed that Earth was a perfect sphere centered in a celestial sphere, also a spherical shell
greeks1
Greeks
  • Aristotle – (384 BC – 322 BC) planets move different from stars
    • Geocentric model - Planets and stars revolve around Earth on spherical “shells”; Earth is the center of universe (Ptolemaic system)
    • geo = Earth; centric = “center”
dark ages middle ages 500 ad 1400 ad
Dark Ages/Middle ages500 AD – 1400 AD
  • Intellectual darkness: the period seems "dark" because of the scarcity of artistic and cultural output,including historical records when compared with both earlier and later times in history.
renaissance 1400 1700
Renaissance1400 - 1700
  • Revival of art, literature, and

learning

  • Nicolaus Copernicus (1473 – 1543) Mathematician and astronomer
  • Identified the concept of the Heliocentric solar system. A system in which the Sun rather than the Earth is the center. Still had fundamental problems with concept though.
  • helio = “sun”; centric = “center”
  • Scientific Method of Investigation
renaissance
Renaissance
  • Tycho Brahe – (1546 – 1601) known for his accurate and comprehensive astronomical and planetary observations.
    • Recorded enough data on the motion of stars & planets to within 1 arc minute
  • Johannes Kepler – (1571 – 1630) Tycho’s assistant
    • Orbit of planets are ellipses
    • Unification of astronomy and physics
r enaissance
Renaissance
  • Galileo Galilei (1564 – 1642) Italian Scientist considered Godfather of modern astronomy.
    • Turned toy into telescope
    • Observed/discovered sunspots
    • Stars not fixed to celestial sphere.
    • Venus goes through phases similar to

Moon showing that both Earth &

Venus orbit the Sun.

    • 4 moons of Jupiter proved that not everything in the sky revolves around the Earth.
    • His ideas were considered controversial; he was tried and

sentenced to house arrest for the rest of his life.

history of astronomy response
History of Astronomy response
  • Draw and explain the Geocentric model.
  • Draw and explain the Heliocentric model.
  • Draw and explain an ellipse.
  • Draw and explain Galileo Galilei’s contributions to astronomy
ad