Applet: Fermat's Principle
• E+55+30

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E+55+0 Inverse square law: Light bulb in wire frame. E+55+5 He-Ne laser compared to non-coherent red light bulb. E+55+10 Image formed by a pinhole using three light bulbs in a box. E+55+15 Applet: Electric Field Lines around an Oscillating Charge E+55+20 Applet: Electromagnetic Wave Propagation E+55+25 Applet: Synchrotron Radiation E+55+35 Applet: Radiation Pressure