Relativity FAQ

Speed of Light

• Why is c the symbol for the speed of light?
• Is the speed of light constant?
• How is the speed of light measured?
• Why is light so fast?
• Is there an equivalent of the sonic boom for light?
• Is it possible to go faster than light?
• I am going at the speed of light and I turn on my headlights...?

Special Relativity

• How do You Add Velocities in Special Relativity?
• Can Special Relativity Handle Acceleration?
• What are the Equations for the Relativistic Rocket?
• Apparent Superluminal Velocity of Galaxies
• Does mass change with velocity?
• Does light have mass?

General Relativity and Cosmology

• Is pi Constant in Relativity?
• Where is the centre of the universe?

Black Holes

• If you go too fast do you become a black hole?
• Is the Big Bang a Black Hole?

General Physics

• What is Occam's Razor?
• Why do Mirrors Reverse Left and Right?
• Some Questions About Fizziks
• How does a light-mill work?
• Is Glass Solid or Liquid?
• I Know a Place Where Things Can Roll Uphill!
• What do You Call Rate of Change of Acceleration?
• Is Magnetic Levitation Possible?
• Why is the sky blue?

Particle and Nuclear Physics

• What is the Mass of a Photon?
• Can the Human Eye Detect a Single Photon?
• What is the Casimir Effect?