"Aren't you afraid I might fall down that crack?"
Tampilkan postingan dengan label environment. Tampilkan semua postingan
Tampilkan postingan dengan label environment. Tampilkan semua postingan
Minggu, 17 April 2011
Potential Future Disaster From Nanotechnology
There is danger from future widespread use of nanotechnology. It is seen as the new savior to save the world from food shortages and so on. But like bio-fuel production it could do more harm than good. CSIRO is calling for more study of nanotechnology. This is despite the fact that no country has yet examined safety issues involved with it.
Nanotechnology creates "micro-fine" products that have no safe disposal system. If they get into the environment there is not telling what damage they could do.
Risks are seemingly endless: use by terrorists; environmental damage; self-reproduction (goo everywhere); even the future of Mankind on this planet could be under threat.
Once a material has been modified or a new nano-product created it becomes a permanent structure. It must be chemically altered to make it safe. A nano-substance is not inert. It will act on the environment if it can. At the moment there are no restrictions. Developers can do what they wish. Let's hope regulations are put in train before a disaster occurs.
Nanotechnology creates "micro-fine" products that have no safe disposal system. If they get into the environment there is not telling what damage they could do.
Risks are seemingly endless: use by terrorists; environmental damage; self-reproduction (goo everywhere); even the future of Mankind on this planet could be under threat.
Once a material has been modified or a new nano-product created it becomes a permanent structure. It must be chemically altered to make it safe. A nano-substance is not inert. It will act on the environment if it can. At the moment there are no restrictions. Developers can do what they wish. Let's hope regulations are put in train before a disaster occurs.
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Science
Minggu, 03 Oktober 2010
Australia Makes Beer for Space
Australians love their beer - really love it. So when going into space it is wise to get "space certified" beer while on board. Saber Astronautics Australia is working with 4 Pines Brewing Company to get their beer registered as satisfactory for space. The beer will be tested in low gravity by weightless parabolas.
Taste and drinkability are paramount. In a low gravity environment human taste is reduced in sensitivity. The way carbonated liquid responds is also an issue. Oddly the Australian brew being tested is not the usual lager. It is stout. This has more flavor. Gas will float around in the liquid in the stomach being released in what is called a wet burp.
The beer will be expensive because of the limited market. Space beer has been made by the Japanese using barley seeds grown in the International Space Station, but that was for earthly consumption.
Taste and drinkability are paramount. In a low gravity environment human taste is reduced in sensitivity. The way carbonated liquid responds is also an issue. Oddly the Australian brew being tested is not the usual lager. It is stout. This has more flavor. Gas will float around in the liquid in the stomach being released in what is called a wet burp.
The beer will be expensive because of the limited market. Space beer has been made by the Japanese using barley seeds grown in the International Space Station, but that was for earthly consumption.
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