680 nm Photon Color – 1-Hour Loop
This video displays the color of a photon with a wavelength of 680 nm for one hour. Color represents how the human eye perceives light at this specific wavelength.
🔹Wavelength: 680 nm (in a vacuum)
🔹Frequency: 4.41×10¹⁴ Hz
🔹Photon Energy: 1.82 eV or 2.92×10⁻¹⁹ J
🔹Wavelengths per meter: 1.47×10⁶ wavelengths (in a vacuum)
💡 Fun Fact:
• Raising the temperature of 1 gram of marble from 25°C to 26°C at 1 atm requires 860 mJ of energy, which is 2.94×10¹⁸ times the energy of a single 680 nm photon.
This video is part of a series covering the entire visible spectrum, from 380 nm to 700 nm, increasing by 1 nm per video.
📌 Playlist: • Red – 620nm to 700nm Photon Colors