Here is a video of what Dr. Walter Adey (inventor of the scrubber) was doing 20 years ago, in addition to working on scrubbers:
http://vsx.onstreammedia.com/vsx/pbssaf ... 0&preview=
Here is a video of what Dr. Walter Adey (inventor of the scrubber) was doing 20 years ago, in addition to working on scrubbers:
http://vsx.onstreammedia.com/vsx/pbssaf ... 0&preview=
Great video, thanks for posting it!
a great nature creator.
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