Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
The Lounge
General Discussion
What Happens When You Play with a 3 Dollar Diffraction Grating?
Reply to thread
Message
[QUOTE="Drakkith, post: 4012791, member: 272035"] So I bought a 3 dollar diffraction grating and was playing around with it. Here's a few pictures I took just holding it up in front of my cell phone camera. Notice the bright lines in the spectrum that correspond to specific atomic transitions in the streetlight. The spectrum is dominated by Yellow-Red light and very little Blue, which of course is why the light is yellowish. The 1st picture is the 0 and 1st order fringes (0 order is just the regular image, no fringes). The 2nd picture is the 1st and 2nd order fringes. The third is identical to the 1st image, but I held up a light pollution filter in front of the grating and camera. Notice the near complete removal of the yellow portion of the spectrum, which should correspond to the light emitted by Sodium in the streetlight. (The light pollution filter is designed to block this specific part of the spectrum to cut down on light pollution when viewing/imaging near or inside of cities) Also, made a little video with an Oxygen-III filter held in front of it. As I tilted the filter the wavelengths that were passed shifted. Go full screen and high quality to get the best view. [Apparently I removed the video from my youtube account a few years ago and it has now been lost] [/QUOTE]
Insert quotes…
Post reply
Forums
The Lounge
General Discussion
What Happens When You Play with a 3 Dollar Diffraction Grating?
Back
Top