PCS 181 Lecture Notes - Lecture 1: Wilkinson Microwave Anisotropy Probe, Galaxy Rotation Curve, Radial Velocity

• School: Ryerson University
• Department: Physics
• Course: PCS 181
• Professor: Margaret Buckby

Document Summary

Starlight we can figure out the star"s temperature the chemical composition. Moves in a wavelike pattern at a speed of c=3x108m/s. Light: mutually perpendicular oscillating electric and magnetic fields light mutually perpendicular oscillating electric and magnetic fields: moves in wavelike pattern at a speed of c= 3x108 m/s. Wavelength, = the distance between peaks of a wave. Multi verse theory: there are other universes with different physical laws, perhaps speed of light is lower. 1 nanometer= 1nm = 1/1x109m = 1 x 10-9m= 10-9m. Red= 700nm= 700 x10-9m = 7 x10-7m. Violet= 400nm= 400 x 10-9m= 4 x10-7 m. Photons: bundles of energy light as a particle. =number of wave peaks passing a given point each second. 700 x 10-9 m f= c/ , speed of light/wavelength fred= 3x10. E= hf planck"s constant x frequency (planck"s constant=6. 625 x 10- The shorter the wavelength, the higher the frequency and energy. 1913: electron is in circular orbit around the proton.