Physics
Physicists Tie Beam of Light into Knots
[/caption] Imagine taking a beam of light and tying it in knots like a piece of string. Hard to fathom?…
What is Absolute Temperature?
If you measure temperature relative to absolute zero, the temperature is an absolute temperature; absolute zero is 0. The most…
Quintessence
Quintessence is one idea – hypothesis – of what dark energy is (remember that dark energy is the shorthand expression…
Electron Mass
[/caption] The mass of the electron, or the electron's mass, written as me, is 9.109 382 15(45) x 10-31 kg.…
Baryon
[/caption] Particles made up of three quarks are called baryons; the two best known baryons are the proton (made up…
Parallel Universe
[/caption] To some extent, 'parallel universe' is self-referential … there are parallel meanings of the very term! The two most…
Parabolic Mirror
[/caption] Sometimes, in astronomy, the name of a thing describes it well; a parabolic mirror is, indeed, a mirror which…
Physicist Vitaly Ginzburg Dies at age 93
Vitaly Ginzburg, a Russian physicist and Nobel laureate, died yesterday of cardiac arrest. He was 93 years old. Ginzburg shared…
Angular Motion
You watch something (some distance from you) move … its direction changes … that's angular motion. In other words, as…
Top Questions That Keep Physicists Awake at Night
[/caption] We all have things that keep us up at night, as we try to solve the problems in our…