Diffraction Grating Glasses — Rainbow Spectrum Viewer, Pack of 10

Put them on, look at any light source, and see the full electromagnetic spectrum split into its component wavelengths.

Diffraction grating glasses use a 1000 lines/mm grating to disperse light into its constituent wavelengths. LEDs, neon signs, fluorescents, and sodium lamps all have distinct emission spectra — visible immediately. Identical principle to a spectroscope, zero setup required. Used in science outreach for exactly this reason: instant, dramatic, beautiful.

• Grating: 1000 lines/mm linear diffraction
• Cardboard frame — lightweight, disposable
• Pack of 10 pairs
• Works with any light source

Every purchase directly funds independent physics research at the Golden Physics Project.