Small DC and hand pumps circulate chilled liquid through copper tubing to cool the body by direct contact, designed by a USPS employee who delivers mail in the extreme heat.

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Victor Eller

I'm a Letter Carrier. Back in the Eighties I bought all the Electronics's Hobbiest Magazines and my soldering iron was my favorite tool. But family life and the P.C. pushed most of that activity into a forgotten corner for the most part. Now I've found a renewed interest in tinkering and think Makezine is a godsend for the creative side in all of us.

Laura Eller

My thirteen year old daughter who has my similar passion for creating things.