2012年1月17日 · FWIW, CDs and DVDs are recorded with the disk moving at a constant linear speed, and the rotation speed does change while the disk is playing. Because the data is recorded digitaally, it is easy for the player to "measure" how fast it is playing the disk, and so the rotation speed of a CD is actuallly controlled by the disk that is being played.

2014年5月29日 · Hi, I having been looking on the internet and other threads and can't seem to find any detailed information on how a CD acts like a diffraction grating. What I understand: the CD has lots of little bumps which can split up light into …

2024年8月17日 · Differentiation Differentiation is finding the tangent line to a specific function.You can deduce surprisingly many facts from this procedure.

2017年2月8日 · Homework Statement Find 3 careers that are in some way related to the interference of light. Give a brief description of each career. Homework EquationsThe Attempt at a Solution My examples are X-ray Technician, Photonics Engineering and Optical Physics. My question is, is optical...