Science fair
Search for a superconductor or levitation kit and the results run from $25 toys to four-figure lab apparatus, often described in nearly identical language. The differences are real and easy to state. This guide sorts the market into four categories...
A superconductor floating above a magnet is a demonstration. A science-fair project is an experiment. Judges — and the ISEF judging criteria they work from — reward a testable question, defined variables, controls, repeated measurements and honest uncertainty, not impressive...
A levitation project stands out at a science fair because nothing else on the table is doing it. The catch is that the best version needs liquid nitrogen, and the version that needs none is a different project with different...
This project levitates a small train on permanent magnets alone — no liquid nitrogen, no cryogenic handling, no special safety kit. That makes it one of the few levitation projects you can build and demonstrate in an ordinary classroom. If...
A superconductor cooled in liquid nitrogen will hang in mid-air above a magnetic track and glide along it with almost no friction — a real hoverboard, at desk scale. It also makes an unusually strong science fair project, because unlike...
