Rejected! What NOW??

[lizetters]

MY teacher rejected the MAGLEV project proposal coz another group was doing it already, and I spent sleepless hours doing researches!!! what now? I THINK I wanna use the same concept or maybe not... I want something that'll make eyes pop...

[LewisWhaley]

Hi lizetters.

I still like magnet projects at age 60+.

You might want to look on the Internet and see all of
the projects that can be done using an old dead computer hard drive.

The hard drive permanent magnets are very strong for their physical
size and can be used to make speakers and apply voice amplitude
to the head arm coil to make it move in rythm to sound.

Do some Google Searches uisng these keywords:
http://www.google.com
hard drive magnet
hard drive magnet project
hard drive magnet speaker
hard drive magnet clock


One search result returned:
http://yuan.ecom.cmu.edu/rotaryvoicecoil/

You will need special, inexpensive, tool(s) to remove the security type
screws holding the cover on the hard drive, like some different size
Star Head drivers that fit on the end of a tool handle like a multi-purpose PC screwdriver / socket tool.

Let us know if you have any interest in this "computer junk recycle" Project.

Good Luck on your Project!

[deleted-71395]

I use them to hold stuff onto my refrigerator -- they can hold so much more than regular magnets!

We had an argument one day about what keeps a fridge magnet from just sliding down. The answer? Friction! If the fridge were frictionless (really smooth), the magnet would just slide down due to gravity.

[Jim Lewandowski]

A couple of years ago I helped a student with a project that demonstrated eddy currents induced by a magnet falling through a copper pipe. This is a very cool experiment with a lot of theory behind it.

The demonstration is to drop a strong magnet through a copper, or other nonmagnetic conducting pipe. The magnet will fall slowly through the pipe where a steel ball or other material will fall normally. The job is to explain why.

Jim

[jessicahua]

Hi!

When I was looking up information on the Maglev project to answer one of your previous posts, I came across information on another physics project that i thought was pretty interesting. It is about building a roller coaster. This seems like an interesting idea that has the potential to wow the audience. Here are some site with the information:

1. http://www.glencoe.com/sec/science/webq ... oast.shtml
2. http://www.angelfire.com/on2/thrillsandchills/
3. http://www.glenbrook.k12.il.us/gbssci/p ... aster.html

Hope you find something youare interested in!

[lizetters]

I've actually considered the rollercoaster and it's really hard to research about!!! but i'm gonna propose that one too... another is a shoe sole with a base of springs, and a sole at the base again, then at the sides, there'd be wrap around cloth so there'd space to bounce... but I don't really know how to relate it with physics...?

[robertzhou]

Maybe you could do something dealing with electromagnets instead? For example, how the strength of an electromagnet changes when you change the size of the magnet, the number of coils, the voltage, etc. Or maybe you can make a model of the giant electromagnet they use in junkyards to lift steel scrap.

Here's a potentially helpful website: http://en.wikipedia.org/wiki/Electromagnet

-Hope this is useful!