DVDS Web Results

Some questions about humidity and storing DVDs in a closed cardboard ... If I have a dvd disk inside those plastic boxes suitable for dvd disks in black, if I have an electronic board inside a bag or papers inside any plastic bag and after that all of them inside a closed cardboard box when I closed the cardboard box or bag or dvdbox it was in rainy or humid weather...

CD Players: How Do They Interfere? • Physics Forums 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 total extra distance of 1/2 a wavelength through the plastic (so the depth of the pit must be 1/4 wavelength in the plastic).

What is v(dv/dx) and how does it relate to acceleration? The discussion centers on modeling acceleration using the expression v (dv/dx), which is derived from the chain rule in calculus. This formulation allows for the analysis of motion in one dimension, where v represents velocity as dx/dt. The relationship between v (dv/dx) and acceleration (a) is established as v (dv/dx) = dv/dt = a. This approach is particularly useful in scenarios involving ...

Why is there a spectrum on the back of a CD or DVD? Homework Statement When i see the back of a CD or DVD, there is a spectrum, in which the various colours are overlapping with each other (continuous...

Kinematics equations: Prove that a=vdv/ds • Physics Forums We know that v=v (x, t) i.e. V is a function of time as well as space coordinate here I have only taken 1D motion for simplicity. By chain rule a=dv/dt=...

How does the mechanism of a dual layer DVD read the data from both ... I read things like "When a dual layer DVD burner reads a dual layer disc, the read-laser readjusts its focus past the semi-transparent first layer of physical data, on to an additional layer of data." and "Reflectivity of both recording layers of a dual layer recordable disc is the similar...

Question about whether UV light can penetrate a cardboard box Does cardboard absorb or reflect UV from indirect sunlight? does it go through the cardboard and hit the plastic and rubber items inside the shoe box with UV?