Live your Unitarian Universalist values out loud. Make your year-end gift today!
The first thing that you will need is a rare earth magnet, preferably a neodymium disk magnet. For this and most other purposes, the most efficient magnet geometry is where the thickness is comparable to the diameter. That magnet that I used was part number ZD4 from K & J Magnetics, it's one inch in diameter by a quarter-inch thick, and made of N48 grade (strong) neodymium-iron-boron, and cost about $5. (Note that hard drive magnets are usually not useful for making a compass because they will have both poles on the same face of the magnet.
To make a floating magnet we'll need some other things: A tub of water, a foam tray, a knife, and a permanent marker. Keep the magnet separated from the knife.
1. Using the knife, make a slit in the foam tray.
2. Shove the magnet into the slit. It should seat firmly in place.
For more information contact web @ uua.org.
This work is made possible by the generosity of individual donors and congregations.
Please consider making a donation today.
Last updated on Wednesday, October 26, 2011.
Sidebar Content, Page Navigation
More Ways to Search
Donate to Support This Program and the Ongoing Work of the UUA
Read or subscribe to UUA.org Updates for the latest additions to our site.
Learn more about the Beliefs & Principles of Unitarian Universalism, or read our online magazine, UU World, for features on today's Unitarian Universalists. Visit an online UU church, or find a congregation near you.