Kneeling before a 400-lb. concrete obelisk in the hills northwest of Los Angeles, Maureen Clemmons mutters a prayer to the ancient Egyptian god of wind. An hour passes. Then a strong gust straightens the lines that attach the obelisk to two nylon kites, shaped like the ones used in parasailing. Soon the kites flip the obelisk and drag it across a grassy field. Clemmons and her 12 assistants erupt in cheers.
For three years, Clemmons, 42, who runs a hair-care-products company and has no formal scientific training, has devoted her spare time and more than $10,000 of her own money to...