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Physics Facts

The Early Universe Soup

In the first few millionths of the second after the Big Bang, the universe looked very different than today. In fact the universe existed as a different form of matter altogether: the quark-gluon ... Continue reading

Collision of two gold nuclei at the RHIC accelerator. An attempt to produce quark-gluon plasma in the laboratory.

Torque

A force may be thought of as a push or pull in a specific direction. When a force is applied to an object, the object accelerates in the direction of the force according to Newton's laws of motion. ... Continue reading

The Doppler Effect

As any object moves through the air, the air near the object is disturbed. The disturbances are transmitted through the air at a distinct speed called the speed of sound, because sound itself is just ... Continue reading

Sound is just a sensation created in the human brain in response to small pressure fluctuations in the air.

Antimatter Discovery

In almost every science fiction movie ever made, you are bound to hear about antimatter –– matter-antimatter propulsion drives, whole galaxies made of antimatter, and so on. Antimatter has been used ... Continue reading

This original 1930 cloud-chamber photograph by Carl Anderson shows the track of a positively charged particle (thin track curving to the left) of electronic mass slowed down by passing upward through a lead plate (horizontal thick line).

More Physics Facts

Atmospheric :

  1. Coming In Strong On Your AM Dial
  2. Does Earth Have Its Own Neon Sign?
  3. Somewhere Over Which Rainbow?
  4. Sonic Boom
  5. The Coriolis Effect
  6. The Doppler Effect
  7. The Sound of Turbulence
  8. Your Own Personal Rainbow?

Classical Mechanics:

  1. Can You Miss the Earth?
  2. Don't Make Waves
  3. What Makes a Frisbee Fly?
  4. Why Does A Golf Ball Have Dimples?
  5. Your Serve

Electricity:

Fundamentals:

  1. Bizarre Boiling
  2. Galileo Thermometers
  3. Get the Point?
  4. How Fast is Mach 1?
  5. How Lasers Work
  6. Kinetic Theory of Gases
  7. Many Happy Returns!
  8. Newton's First Law of Motion
  9. Newton's Three Laws of Motion
  10. The Fourth State of Matter
  11. The Physics of Sandcastles
  12. The Weakest Force
  13. Tick-Tock Atomic Clock
  14. Torque
  15. What Is An Atom?
  16. What Is Radiofrequency Energy (Rf)?
  17. X-Rays - Another Form of Light

Magnetism:

  1. Earth's Magnetism

Nonlinear Dynamics & Chaos:

  1. Poincare's Chaos

Optics:

  1. Delivered by TIR
  2. Does Your Brain Do Flips?
  3. Quick Change Artist
  4. Single Molecule Electroluminescence
  5. Ultraviolet Light

Quantum Mechanics:

  1. Antimatter Discovery
  2. Neutrinos to the Rescue
  3. Quarks
  4. The Early Universe Soup
  5. The Equivalence Principle
  6. The World's Largest Laser

Radioactivity:

  1. Carbon Dating From The Skies
  2. Fission and Fusion
  3. Nuclides & Isotopes
  4. When Do We Encounter Ionizing Radiation In Our Daily Lives?

Solid State:

  1. Can Wint-O-Green Lifesavers® Light up Your Life?

Thermodynamics:

  1. Ultraviolet Light

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