shavings, curl up, dig up, Speak French

Newt's Latest Mitt Attack: "He Speaks French"

Gingrich follows liberal group’s lead, digs up old Olympic footage to make the John Kerry connection.

Speak French/Greek 表示說的話別人不懂

Antiquarian booklovers happy not to turn a new page
Between audiobooks and electronic readers like the Kindle, there's no doubtthe publishing industry is turning increasingly digital. Still, for manyreaders, nothing beats curling up with a book – and for some, the olderthe book, the better.
The DW-WORLD Articlehttp://newsletter.dw-world.de/re?l=ew3zb1I44va89pI0


Dr Zhang had previously invented a method to clean groundwater and contaminated soil using iron nanoparticles. While effective, such nanoparticles are expensive: about $100 a kilogram, which can prohibit their use in developing countries.

Dr Zhang, who is from China and who went to college in Shanghai, thought iron shavings, which have a large surface area, may provide a cheap alternative. Scrap iron currently costs about 20 cents a kilogram in China. His idea was to treat industrial wastewater by passing it through the iron shavings, and then treat it as municipal wastewater. First, the non-biodegradable industrial chemicals are attracted to the surface of the iron shavings, where they react by sharing electrons with the iron and become degraded. (The iron gets oxidised in the process.) Then, any biodegradable contaminants that remain are neutralised by the second step.



shavings
Curly wafers of wood produced when trimming wood with a plane; used as bedding for horses. See also sawdust.

IN BRIEF: The trimmings left over after cutting one's hair or beard.