Some questions about humidity and storing DVDs in a closed …
Jul 21, 2023 · This discussion centers on the effects of humidity on storing DVDs and electronic components in closed cardboard boxes. It highlights that moisture can enter these containers during …
CD Players: How Do They Interfere? - Physics Forums
Nov 9, 2004 · The "reference beam" in the case of CDs and DVDs is the part of the laser beam that is reflected from the surface of the disk (aka the "land"). THe beam that goes into the pits will travel a …
Why is there a spectrum on the back of a CD or DVD?
Sep 22, 2011 · The spectrum observed on the back of a CD or DVD is a result of diffraction, where the tracks and sectors on the disc act as a diffraction grating. This phenomenon occurs when light bends …
The Many Faces of Topology - Physics Forums
Dec 17, 2024 · Topology is a branch of mathematics that encompasses many different parts. It is sometimes even difficult to see what these branches have in common or why they are all called …
Kinematics equations: Prove that a=vdv/ds • Physics Forums
Dec 1, 2019 · The discussion centers on proving the equation a = v dv/ds, where a represents acceleration, v is velocity, and s is displacement. The participants clarify that velocity v is a function …
Machining Aerogel • Physics Forums
Dec 15, 2025 · Good day folks, I would like to know if anybody out there has any practical, hands-on experience with machining Aerogel (I do mean the "classic", frozen-smoke-appearance Aerogel, not …
How to load programs to computer without a CD or DVD drive.
Sep 19, 2013 · This discussion provides a comprehensive guide on how to load programs onto a laptop without a CD or DVD drive by creating and using ISO image files. Users can create an ISO file from …
Question about plastic bags and humidity • Physics Forums
Dec 30, 2020 · Additionally, it was noted that DVDs are classified as MSL-1, meaning they are not significantly harmed by humidity. Recommendations included using airtight vacuum storage bags …
Member and Mentor Appreciation Thread • Physics Forums
Dec 21, 2025 · It's sure been a wild ride this year! Between some AI missteps and breaking LaTeX for a good portion of the year (at least we got dark mode out of it lol), Physics Forums remains the …
Why Do Longer Wavelengths Go Slower in Glass? - Physics Forums
Jan 6, 2022 · The discussion centers on the phenomenon of light refraction in glass, specifically addressing why longer wavelengths travel slower than shorter wavelengths. Participants clarify that …