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Resource need: classroom globe showing seafloor bathymetry  

I need help locating classroom globes that show seafloor bathymetry. Currently we have two National Geographic ones from the 70s. They are wearing thin! With all the fabulous satellite imagery out today, there should be more options out there. We're finding none. What are other people using? If you don't have one at all, why not? (We've always valued having students see bathymetry on a sphere, but has computer imagery replace its value?) Ideas? Thoughts?

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Not exactly what you are looking for, but here is a link I found recently and that I am very excited about: Map foldouts to create your own pseudo globe. Many of those contain sea floor bathymetry, plus students can craft their own, plus you get to talk about map projections. Definitely worth a look!
http://www.progonos.com/furuti/MapProj/Normal/ProjPoly/Foldout/foldout.html

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