Expand all + Photoelectric Effect 7A10.10 - Photoelectric Effect in Aluminum7A10.12 - Photoelectric Charging7A10.16 - Photoelectric Effect with Neon Lamp7A10.30 - Stopping Potential7A10.40 - Solar Cells7A10.99 - Fox Trot Cartoon + Band Gaps 7A30.10 - Cooling LEDs with Liquid Nitrogen + Wave Mechanics 7A50.40 - Vibrating Circular Wire + X-Ray and Electron Diffraction 7A60.10 - Electron Diffraction7A60.15 - Miller Indices7A60.25 - Optical Analog of X-Ray Diffraction - DNA7A60.50 - Microwave Bragg Diffraction + Condensed Matter 7A70.20 - Quantum Levitation and Flux Pinning