William Pye - In Charybdis the circular movement of water inside a transparent acrylic cylinder forms an air-core vortex in the centre. Steps wrap around the cylinder and allow spectators to view the vortex from above.
Top 10 Garden Aquarium and Pond Ideas to Decorate Your Backyard
Here you can see top 10 garden and pond ideas to decorate your backyard. We hope that our ideas will inspire you to create wonderful aquarium or garden pond that can transform the atmosphere of a garden, adding color, light and movement.
It's late summer in Australia at the moment. Just the right time to jump into a pool, https://www.youtube.com/watch?v=-rTSrvUQ4wI&index=19&list=PL1DC07C1F52E055E2 for example one with walls made of PLEXIGLAS®. Did you know glass makes water look green? PLEXIGLAS®, by contrast, reproduces exactly the same color as the sky it reflects. No winter grayness here, but blue in blue.
http://www.plexiglas.net/product/plexiglas/en/references/specialty-glazing/Pages/swimming-pool.aspx We all know water isn't blue at all, it merely reflects the sky. Unless you look through old, yellowish panes of glass, which make even the clearest water appear green or yellow. It's a good thing PLEXIGLAS® shows no yellowing even after long years of use.