Размер видео: 1280 X 720853 X 480640 X 360
Показать панель управления
Автовоспроизведение
Автоповтор
And now we know where all the old phone booths have gone! they're clearing algae in Australia!
Oh cool. We have a couple very similar paddle wheel harvesters for the lemna (duckweed) ponds that are part of the city waste water treatment system. They're going on 40 years old now and still going strong.
Wow! 40 years, thanks for sharing
Would have been fun to see the slurping
And now we know where all the old phone booths have gone! they're clearing algae in Australia!
Oh cool. We have a couple very similar paddle wheel harvesters for the lemna (duckweed) ponds that are part of the city waste water treatment system. They're going on 40 years old now and still going strong.
Wow! 40 years, thanks for sharing
Would have been fun to see the slurping