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emcelhannon

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107
Joined
July 31, 2009
Last visited
January 17, 2022

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high power lead needs to power or trigger an electromagnet.

By emcelhannon, November 26, 2017 in Science Education
- 8 replies
- 2590 views
How to make a spread out magnetic field

By emcelhannon, December 4, 2016 in Classical Physics
- 1 reply
- 1352 views
Automatic in and out.

By emcelhannon, May 24, 2013 in Engineering
- 3 replies
- 1365 views
Thickness of the oxide layer on bismuth that produces 550nm wave length

By emcelhannon, April 10, 2013 in Inorganic Chemistry
- 4 replies
- 2111 views
Reducing to reclaim bismuth. 1 2

By emcelhannon, August 17, 2012 in Applied Chemistry
- 28 replies
- 13702 views
How do you protect the colorful oxide layer of bismuth

By emcelhannon, August 21, 2012 in Applied Chemistry
- 0 replies
- 1260 views
The radioactivity of bismuth

By emcelhannon, August 17, 2012 in Chemistry
- 7 replies
- 6964 views
Explain spin in a featurless particle.

By emcelhannon, June 15, 2010 in Quantum Theory
- 2 replies
- 1017 views
technitium

By emcelhannon, December 10, 2009 in Quantum Theory
- 5 replies
- 1920 views

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