A buyer's guide to harnessing the energy of the sun
Dear EarthTalk: I am considering solar panels for my roof to provide heat for my hot water and possibly to do more than that. Are there some kinds of solar panels that are better than others? How do I find a knowledgeable installer? --Elise, Watertown, MA
By Rahul Tandon
BBC News, Calcutta
The head of the opposition party in the Indian state of West Bengal has called for an indefinite siege of the factory building the world's cheapest car.
Dear all
For ur reference!!!
acquire : 獲得
By Jonathan Amos
Science reporter, BBC News
plotting areas of ground that may or may not need fertiliser applications.
Dear All
For ur Reference!!
achieve : 完成,實現
The government needs to step up efforts to reduce waste from business, according to a parliamentary committee.
The House of Lords Science and Technology Committee recommends using variable VAT rates to cut unsustainable consumption of raw materials.
Its report says pressure has so far concentrated on householders, who account for only 9% of the UK's waste.
Did Russia invade Georgia or was its military operation there a case of humanitarian intervention?
This is the nub of the propaganda war that has been fought out between the Georgians (with increasingly vocal backing from the US and the EU) and the Russians (with the support of the separatist leaderships in South Ossetia and Abkhazia and countries like Serbia).
Electron microscopes use a beam of electrons to magnify samples by up to 2 million times. But whatever they look at takes a beating, a problem when examining delicate biological specimens.
Amber: Hello, I’m Amber with another edition of ‘How to …’ the series that gives you useful language to do things in English.
Henry Ford certainly is a great guy. He introduced mass-production, putting the whole world on the wheels. But his contribution to the world is not just his Model T, which, like the old Singer sewing machine, was built all but for eternity. Both machines were, of course, almost fool-proof easy to handle, and best of all, capitalists could increase the wages of workers and cut the prices of their products at the same time, thanks to mass-production and its resultant global popularization.
Things began to change after the economic globalization, whose inception historians would date back to the end of the Second World War. The United States won the war, and women's obsession with nylon stockings surged across the world where GIs spread the gospel of semi-transparent sexy hose. Incidentally, GI, which stands for "government issue," means the American soldier, who was ubiquitous the world over in the latter half of the 1940s. The best present a German or Italian or Japanese girl could have from her GI friend was the nylon stockings.
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