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KZNA-FM 90.5 serving northwest Kansas will be off the air starting the afternoon of Monday, October 20 through late in the day Friday as we replace its aging and unreliable transmitter. While we're off-air, you can keep listening to our digital stream directly above this alert or on the HPPR mobile app. This planned project is part of our ongoing commitment to maintaining free and convenient access to public radio service via FM radio to everyone in the listening area. For questions please contact station staff at (800) 678-7444 or by emailing hppr@hppr.org
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KTOT- FM 89.5 serving the Oklahoma and Texas panhandles is currently off air. Repairs are underway.

An Explosive Pair: Take a Mentos, and a Diet Coke...

Published April 13, 2006 at 3:00 PM CDT

What happens when you put a handful of Mentos candy into a bottle of diet soda? As many fans of Web video have found out, the results are pretty explosive.

But it's no secret -- folks are taking video cameras and posting images of their homemade soda explosions on the Internet -- and there is actually a scientific explanation. Michele Norris speaks with science correspondent David Kestenbaum about the science behind Diet Coke and Mentos.