If you have read the rules for either "The Fray" or "The ECHORR challenge they both have statements about how the armature measurements will be taken at the current available room(ambient) temperature. Have you ever wondered why? If so, then read on.

When building a competitive car you should use matched magnets... sounds simple enough... pull out the magnet matcher or gause meter and start measuring magnets until you find a matching reference number (if using a magnet matcher) or a matching gause reading on two magnets (1 north, 1 south). Well this is what I thought until Greg Wisniewski explained the "finer points" of magnet matching. The image to the right is what started it all. I would like to thank Greg Wisniewski for sharing this with me and you who are reading this should thank him for allowing me to share it with you.