ASTR 1102 Lecture : Lecture Notes
Document Summary
Predict- develop hypotheois into model to predict something else. Models that pass every test eventually are termed theories or laws . Scientists can prove a model is wrong, but never that it is right. Named after mythical figures or other distinctive objects (orion, the hunter) International astronomical union constellation boundaries (arbitrary regions of the sky) Bright stars in orion occupy space 140 light years wide, 300 light years high, and 1100 light years deep. Shapes of constellations depend on where you are. Proved they don"t add colors to the light. Varies along the spectrum in length and frequency. Answer 2: (newton) light behaves like a particle. Varies along the spectrum in energy of each photon. Effectively proven through einstein"s explanation of the photoelectric effect in 1905. Oscillating fields induce varying electric current in a wire (antenna). Radios measure this current (so does a radio telescope) There more to light than meets the eye.
