06-16-2005
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 Curious |  Investigatory Projects.. hi to all!! I just need help.. A lot of help.. I need a topic for our invetigatory project... ASAP!! PLease help me.. Just e-mail me at lolli_tomoyo@yahoo.com... I need topics concerning physics, chemistry or engeneering... thanks alot!!    | |
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06-16-2005
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 Creating | Re: Investigatory Projects.. Why would you need a school project in June? What is the effect of a strong magnetic field on plants? Big cheap plastic plant flats with lots of compartments. Alfalfa or mung bean seeds, Arabidopsis, whatever is small. The magnet, http://www.unitednuclear.com/magnets.htm e.g., last items on page http://www.matchrockets.com/ether/halbach.html http://www.magnetricity.com/Articles/Halbach_Array.php Learn how to shape added soft iron pole pieces to intensify the field and create maximum field line divergence as in the Stern-Gerlach experiment, pointy into concave round > ). Remember that dipole field strength varies as 1/r^3. Ya gotta be real close to the action! Head the warnings about bringing Nd-Fe-B magnets close without absolute control being establshed every step of the way. You are looking at potential thousands of pounds of pull with the big ones in tight. Or fabricate variations upon Peaucellier's linkage, http://www.math.toronto.edu/~drorbn/...ransformer.htm http://mathworld.wolfram.com/PeaucellierInversor.html ---------------- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) http://www.mazepath.com/uncleal/lajos.htm#a2 | |
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