2020-09-10
Arduino IoT Workshop
- Learning objectives for reading section 2.2
- Describe early examples of astronomy around the world
- Egyptians
- Used Sirius to track the year
- It has a yearly cycle that corresponded with the flooding of the Nile
- Chinese
- Also had a calendar
- Recorded many things like comets, meteors, and dark spots on the Sun
- Mayans
- Used Venus to build their calendar
- Explain how Greek astronomers were able to deduce that Earth is spherical
- Shadows on the Moon (during a lunar eclipse) made by the Earth are always round
- Shadows that are always round can only be made by spherical objects
- As you travel south, you can see new stars
- If Earth was flat, this wouldn't happen
- Explain how Greek astronomers were able to calculate Earth’s size
- Describe the motion of Earth called precession
- Describe Ptolemy’s geocentric system of planetary motion (geocentric model)
- Learning objectives for reading section 2.4
- Explain how Copernicus developed the heliocentric model of the Solar System
- Describe Galileo’s discoveries concerning the study of motion and forces
- Showed that rest is no more natural than motion
- Surmised that an object with no resistance that is in motion would stay in motion
- Force is required to stop something from moving just as it is required to start moving something
- Discovered uniform acceleration
- Watched objects falling down ramps
- Explain how Galileo’s discoveries tilted the balance of evidence in favor of the Copernican model (heliocentric model)
- YouTube channel has been made
- All lecture recordings will go on there