Special Relativity states that a clock orbiting Earth will tick slower than one on the surface of Earth. General Relativity states the opposite - a clock will tick faster the further it is from a mass. Is there then a critical radius where these two effects cancel out? Ignore the rotation of...
I am working on a program that compares the monochrome intensities of two circular objects within a greyscale image. However, because I'm a beginner I don't know how to have my program locate where these objects are. This means I need to manually input the radius and position of each circle to...
I'd like to know how to compare two greyscale images with each other using MATLAB. These two images for simplicity sake will both be circles and of different intensities. I need to be able to figure out by what proportion one image's intensity is of the other.
For instance with 8-bit...
Homework Statement
I need to be able to widen the beam of a laser for an experiment I am doing. I want to increase the area the beam takes up while preserving the total amount of light passing through a plane. I provided a diagram of a way I think I can do this, but I would appreciate any...
Does anyone know what compounds make up the resin used by resin type 3D printers?
I need to know if it could possible react with some hexane, toluene, and other chemical solutions for sure, though I believe the resin to be fairly inert chemically.
Thanks PF.
Hello PF,
I'm doing research over the summer and have to learn MatLab. I just installed it yesterday and was able to put together a basic script for my project but want to know how to do a couple things.
My project involves analyzing the absorption of a solution by shining a laser through the...
In lecture last week my professor asked us why the electric arcs formed by the Jacobs Ladder demonstration device rose up into the air. I answered that the magnetic field created by the metal rods exerted an upwards force on the moving charge in the arc. My professor told me this was getting...
Okay, thanks. Why exactly would the magnetic field strength be diminished so dramatically?
Also, is there a method to amplify the magnetic of a pulsed solenoid without increasing the input current or changing the coil's wrap density?
I wanted to know how the magnetic field of a solenoid would be affected if a copper/iron pipe section was put into its center. In other words, what would the resulting magnetic field be if I simply wrapped a coil around a metal pipe section without removing the pipe afterward?
Will there be...
I made a coilgun out of a disposable camera circuitboard hooked up to five 330V 80uF caps found in the cameras. It fires a nail at a very low speed (not enough to penetrate a paper towel), but I was not going for anything crazy since this was really the first electrical project I've ever...
Hello, would anybody please tell me how a charging circuit works, such as one for a capacitor in a disposable camera...how can the 1.5V battery fully charge a 330V capacitor? I believe transformers are involved to kick up the voltage, but how is DC converted to AC for that? I'd also like to know...