2012年(464)
分类: Delphi
2012-05-30 15:14:05
To bring it all together in one place, Mr Ceder and his colleagues, in
conjunction with the Lawrence Berkeley National Laboratory, late last year
launched a free online service called the
Materials Project to catalogue the properties of substances. By March this year
it contained details of almost 20,000 different compounds.
The database is
designed to allow scientists quickly to identify suitable new materials and
predict how they might react together. This promises to speed up the development
of new materials in manufacturing. Some new substances can take a decade or more
to reach the market. “Because it takes so long, people are wary about investing
in it,” says Mr Ceder. “So we have to make the process faster.”
For over 100
years, America was the world’s leading manufacturer, but now it is neck-and-neck
with China. In the decade to 2010 the number of manufacturing jobs in America
fell by about a third. The rise of outsourcing and offshoring and the growth of
sophisticated supply chains has enabled companies the world over to use China,
India and other lower-wage countries as workshops. Prompted by the global
financial crisis, some Western policymakers now reckon it is about time their
countries returned to making stuff in order to create jobs and prevent more
manufacturing skills from being exported. That supposes two things: that
manufacturing is important to a nation and its economy, and that these new forms
of manufacturing will create new jobs.
There has been plenty of research to
show that manufacturing is good for economies, but in recent years some
economists have argued that there is nothing special about making things and
that service industries can be just as productive and innovative. It is people
and companies, not countries, that design, manufacture and sell products, and
there are good and bad jobs in both manufacturing and services. But on average
manufacturing workers do earn more, according to a report by Susan Helper of
Case Western Reserve University, Cleveland, for the Brookings Institution, a
think-tank in Washington, DC.
Manufacturing firms are also more likely than
other companies to introduce new and innovative products. Manufacturing makes up
only about 11% of America’s GDP, but it is responsible for 68% of domestic
spending on and
machinery research and development. According to Ms Helper, it provides
better-paid jobs, on average, than service industries, is a big source of
innovation, helps to reduce trade deficits and creates opportunities in the
growing “clean” economy, such as recycling and green energy. These are all good
reasons for a country to engage in it.