Wave Questions

• As light from a star spreads out and weakens, do gaps form between the photons?
• Can gravity form waves?
• Can light bend around corners?
• Have astronomers ever observed a violet shift like they have blue shifts and red shifts?
• How bright is a laser beam when viewed from the side?
• How do you focus regular light to make it a laser beam?
• How do you make a one-photon-thick beam of light?
• How does a photon accelerate to light speed so quickly?
• How does sound going slower in water make it hard to talk to someone underwater?
• Is light a particle or a wave?
• What is the shape of an electron?
• What is the speed of electricity?
• What is the speed of gravity?
• What psychological effect makes notes on a piano that are an octave apart sound the same?
• When I bump one end of a long metal bar, the other end instantaneously moves. Can I use this to send messages faster than light?
• Why are sound waves invisible?
• Why do quantum effects only happen on the atomic scale?
• Why doesn't my laptop emit radiation?