| Description |
1 online resource (streaming video file) (26 min. 33 sec.) ; 160638719 bytes |
| Summary |
Dr Karl explains how most of the water in the world was created at the moment of the Big Bang. It's still being made across the universe whenever oxygen and hydrogen get together under the right conditions, but none of it's getting to Earth. Dr Karl and Steve Bosi at Sydney University decide to create some brand new water for themselves, rather than relying on water that may have been re-cycled through the intestines of plague-infected Londoners two hundred years ago. They discover making new water is not that easy. Most of the Earth's water is constantly recycled and just as the astronauts in the space shuttle recycle their own waste, Adam has decided to examine the basics of reverse osmosis. Taking a carefully collected sample of his urine, a baby's bathwater and some washing-up water, he's planning to share the end result with the studio audience.At this point it's interesting to illustrate how easy it is to mis-inform the public. Recycling is an emotional issue with many people violently against it. Yet what about the lethal dangers of DHMO? In Martin Place Yumi Steynes petitions against the substance that's present in 98% of cancers and linked to many other diseases. Of course DHMO is just plain old water by another name.As Adam's waste water continues to be processed, some basic science tricks in the studio demonstrate some of water's extraordinary properties such as water tension and the nature of ice. Which brings us to the fundamental question of how to best keep your beer or wine cool in an esky - by leaving the melted water in with the remaining ice, or out? With some studio lab rats we begin to answer this vital question.As we wait for the results, Karl gives us some basic tips on surviving in the bush if you run out of water. But what's much more likely to save your life is knowing how to survive a rip. The Geeks venture to Tamarama beach and meet rip expert Dr Rob Brander.While they're examining remarkable aspects of nature, the Geeks explain the mystery of rainbows and how no-one ever sees exactly the same one.PRODUCTION DETAILS:Executive Producer: Alan Erson. Developed and produced by Cordell Jigsaw in association with ABC TV |
| Event |
Broadcast 2012-07-09 at 10:30:00 |
| Notes |
Classification: PG |
| Subject |
Recycling (Waste, etc.) -- Technological innovations.
|
|
Refuse and refuse disposal -- Testing.
|
|
Science -- Experiments.
|
|
Water.
|
|
Rip currents.
|
|
Australia.
|
| Form |
Streaming video
|
| Author |
Kemp, Phil, director
|
|
Kruszelnicki, Karl, host
|
|
Spencer, Adam, host
|
|
