Jean Tate
Planetary Nebulae
No, planetary nebulae are not nebulae found around planets; nor are they nebulae produced by planets … rather, they got…
What is the Boltzmann Constant?
There are actually two Boltzmann constants, the Boltzmann constant and the Stefan-Boltzmann constant; both play key roles in astrophysics ……
Big Bang Timeline
The Big Bang timeline is basically just a list of relative times at which the major events in the history…
Atomic Mass
[/caption] The mass of an atom is its atomic mass (duh!). Actually, it's worth looking into this a bit more…
Electromagnetism
The short version: electromagnetism is one of the four fundamental forces (the strong force, the weak force, and gravitation are…
What is Beta Radiation?
Beta radiation is radiation due to beta particles, which are electrons (or, sometimes, positrons); mostly, when you come across the…
Beta Particles
Beta particles are electrons (symbol β-), or positrons (symbol β+), emitted in beta decay (a kind of radioactivity); beta radiation…
Atomic Spectra
The light which atoms give off is made up of specific wavelengths, called lines; observed by a spectroscope, the lines…
States of Matter
Solid, liquid, gas … those are the states of matter we're thoroughly familiar with, but what makes for a state…
Light Spectrum
Light spectrum can mean the visible spectrum, the range of wavelengths of electromagnetic radiation which our eyes are sensitive to…