Win a Keystone Eco Solar/USB Power Pak. This little device uses the sun to power up MP3 players, digital cameras, cell phones, gaming devices and more. We have one here in the office, and we’re dying to send it to one lucky reader. Just answer one simple question by 5 p.m. Eastern, Monday, July 25. We’ll pick one random winner from among the entries.
The question: In our October 1999 issue, we wrote about a solar-powered Ferris wheel. Where was this solar-powered ride located? Click here to browse in our online archives. Send in answers using the form below.
Runners-up will receive a BL 100th anniversary scarf. Best of luck!
UPDATE: Congratulations to our winner, reader Andrew! If you didn’t win but still want to purchase a Power Pak, just click here.