The Spectrums of Three Cheap Laser Pointers
A couple of months ago, I converted my EP200Mmd monochromator into a scanning monochromator and tested the spectrums of quite […]
Direct Measurement of the Speed of Light using a Cheap Laser Diode – II
In my previous blog post, I discussed the basic TOF method for direct measurement of the speed of the light. […]
Direct Measurement of the Speed of Light using a Cheap Laser Diode – I
Speed of light c in air can be measured either directly or indirectly. There are many ways to infer c […]
A Strange DVD RW Problem
My home workstation has a Plextor PX-708A DVD-RW drive, and it has been working perfectly until quite recently.