Spectrum Demo: Continuous and Emission

This is a demonstration of the continuous spectrum of white light and the emission spectra of mercury, nitrogen, neon, and hydrogen, imaged through a diffraction grating.

This demonstration was created at Utah State University by Professor Boyd F. Edwards, assisted by James Coburn (demonstration specialist), David Evans (videography), and Rebecca Whitney (closed captions), with support from Jan Sojka, Physics Department Head, and Robert Wagner, Executive Vice Provost and Dean of Academic and Instructional Services.

[katz]

Incandescent bulb 1:13
Mercury 3:15
Nitrogen 3:58
Neon 4:30
Hydrogen 5:04

Hope this helped.

[VinodSharma-yvny]

sir, you showed a fantastic experiment - which is generally not available even in university laboratories. Thanks for sharing it to world.

[maracachucho]

It's one thing to see this in textbook diagrams, but to see it happen in reality with an actual professor explaining it is mind blowing!

[Rohit-tzgs]

Wish Indian schools should have demonstrated to students in this way so that everybody could understand.

[ChristianoSts]

amazing. I´ve studied chemistry and even with master degree studying spectroscopy in 90´s that´s the first time I see how this works experimentally.

[sweetdevil]

Even our physics teacher showed THIS video to show us what spectrum is. Thank you for this wonderful video

[MrZenmancer]

After watching this video, knowing which crystals to use for my lightsaber should be an easy choice now.

[riakataria]

followed this to understand the black and white H-Spectrum diagram in my textbook, thank you so much!! i finally understand what it means!!

[melatisasabila]

Thanks for the demo, this is exactly what I need to understand about the spectrum. Even I didn't have this experiment in university 😢

[yeswecan]

wow thank you for giving every confused student like myself to get to watch this instead of trying to imagine it.

[tanishqsharma]

These colors look so beautiful. Beautiful Demonstration as well. Thank you for helping.

[kanikshavashisht]

It was amazing to see this experiment as I had only imagined about these spectrum.
Thanku sir for demonstration.

[dylanjohnson]

0:20 "hydergin" 0:32 "this looks like a piece of clear plastic... but it's not. It's actually a piece of clear plastic"- this guy 2016

[ChemistryinaNutshell]

Excellent demonstration! Thank you for sharing.

[KimGillard]

Thank you so much! I'm teaching 10th grade astronomy online right now, this is going to replace the demos I can't do tomorrow (and go beyond - I need to find a large diffraction grating like yours for next year)

[DouglasSoaresVicente]

How can a bulb emmit continuum spectrum, if light is always transmitted via photons with quantified energy?

[michaelspencer]

Wish I could have had more teach like you when I was in school

[nextbillionaire]

Thank u so much Professor ....
I'd watched tons of videos but not able to understand but now it's crystal clear...♥️

[danitubman]

thank you! using this for distance learning bc I can't do the demo at school!

[JDs_Fantasy]

You are doing very fantastic work, thanks a lot