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here’s a homemade speaker my friend and I built for physics class. All parts were bought for under $10, and everything was put together ourselves.
Edit: A lot of you guys have been asking for a full list of the materials I used, so here it is:
32 gauge enamel coated copper wire
Foam to reinforce the cone
Paper to wrap coil around
Top plate of a peanut can
Lego for support
Plywood to build enclosure
1 Ceramic Donut Magnet
5 Neodymium Disc Magnets
Fiberglass Veil Panels to cover enclosure (Optional, for aesthetics only)
In 1985, scientists found that sixty carbon atoms could join up to sort just one huge soccer ball condition: a buckyball! It’s a unusual small molecule.
Hosted by: Hank Inexperienced
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Carbon heritage: http://www.caer.uky.edu/carbon/heritage/carbonhistory.shtml
C60: http://www.chm.bris.ac.united kingdom/motm/buckyball/c60a.htm
Nobel Prize: http://www.nobelprize.org/nobel_prizes/chemistry/laureates/1996/press.html
Takes advantage of: http://www.scientificamerican.com/short article/have-buckminsterfullerene/
Buckyball strong: http://www.nasa.gov/household/hqnews/2012/feb/HQ_12-057_Spitzer_Buckyballs.html
Most cancers bomb: http://www.science20.com/news_content/buckybombs_buckminsterfullerene_to_detonate_cancer_cells-154109