Tomoyo Posted June 16, 2005 Report Share Posted June 16, 2005 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 [email protected]... I need topics concerning physics, chemistry or engeneering... thanks alot!! :D :cup: Quote Link to comment Share on other sites More sharing options...
UncleAl Posted June 16, 2005 Report Share Posted June 16, 2005 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 pagehttp://www.matchrockets.com/ether/halbach.htmlhttp://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/People/Eldar/thesis/Transformer.htmhttp://mathworld.wolfram.com/PeaucellierInversor.html Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.