Energy density equation

Sketch black body distribution

Peak and mean black-body radiation energy

Photon to baryon ratio

Present day temperature of photon distribution

Alpha, the proportionality between total photon energy density and temperature
(Equation and value)

Number density equation

Baryon density parameter today
(from Planck data)

Mean baryon energy

What is matter-radiation equality?

Photon energy density

Matter density parameter today

Why is neutrino density parameter is different from photon density parameter?

Temperature-time relation

Temperature of matter-radiation equality

Define nucleosynthesis

Describe nucleosynthesis process

describe how nucleosynthesis calculations can be used to measure baryon density parameter

Describe how nucleosynthesis calculations can be used to find the number of species of light neutrinos

How are the abundances of light species observed?

Define Cosmic Microwave Background Radiation

Describe how the CMB forms

How to CMB anisotropies arise?

How can anisotropies be used to measure universe geometry and total energy density?

Amplitude of anisotropies

Value of Boltzmann constant needed for temp-time relation

What is the angular power spectrum?