Make: Technology on Your Time Volume 35

TIME: 1–2 HOURS COST: $20–$40

The Fire Tornado

Recreate a terrifying force of nature.

Written by William Gurstelle

MATERIALS

» Modeling clay,½lb

» Phonograph turntableCheck thrift stores, garage sales, and repair shops. Look for an old one with a 78rpm setting and a raised edge on the platter (see Step 2). If you can’t find one that does 78rpm, it’s OK; you can easily modify a belt-drive turntable to increase its speed.

» Crucible, or fireproof bowl ...