Example image of eyePlorer eyePlorer map for 'Transparency and translucency': Optics Physical property Frequency Wavelength Reflection (physics) Refraction Transmission Flat glass Water Opacity (optics) Absorption (electromagnetic radiation) Empirical formula White Visible spectrum Color Light scattering Chemical bond Molecular vibration Dipole moment Close-packing of spheres Electromagnetic radiation Radiant energy Sensor Ultraviolet Gamma ray X-ray Infrared Infrared homing Night vision Microwave Radio Television Ray (optics) Mass Liquid Solid Transmitter Chemical substance Property Angle Mirror Parallel (geometry) Specular reflection Diffuse reflection Dimension Brownian motion Micrometer Microscope Atom Electron