The discussion centers around the relationship between electrical circuits and the speed of light. It highlights how signals in circuits do not travel at the speed of light due to various factors such as resistance and capacitance. The conversation emphasizes that while electromagnetic signals can propagate at light speed in a vacuum, their effective speed in circuits is slower. Participants express confusion about the relevance of the topic, leading to a consensus that the thread lacks a clear purpose. Consequently, the thread is deemed unproductive and is set to be closed.
I would like to fan out a laser pointer's beam into a sheet of light, so basically stretch it along a single axis so it creates a plain. I wasn't sure if a cylindrical lens was the right tool for the job? And I figure I might need a few laser pointers all piped into it to ensure enough light is left after it is stretched.