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April 29, 2007
Health effects of vitamin D
globeandmail.com: Vitamin D casts cancer prevention in new light
But perhaps the biggest bombshell about vitamin D's effects is about to go off. In June, U.S. researchers will announce the first direct link between cancer prevention and the sunshine vitamin. Their results are nothing short of astounding.
A four-year clinical trial involving 1,200 women found those taking the vitamin had about a 60-per-cent reduction in cancer incidence, compared with those who didn't take it, a drop so large — twice the impact on cancer attributed to smoking — it almost looks like a typographical error.
Posted by thdyck at April 29, 2007 | Comments (0) | TrackBack
April 12, 2007
How to get fresh water in Malta
Down the centuries, the Maltese have developed a clever system of underground tunnels, called galleries, to extract the water for human consumption.
About 97m (320ft) beneath the surface of the island lie the Ta' Kandja galleries. Reached by a lift, the tunnels stretch out for several kilometres like the spokes of a wheel, all half-filled with water that is pumped up to the surface and then to homes and farms around the island.
The water in the tunnels is fresh. But just 10m below, it is salty. And thanks to climate change the brackish water is rising.
BBC NEWS | Science/Nature | Briny future for vulnerable Malta
Posted by thdyck at April 12, 2007 | Comments (0) | TrackBack