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Laundering money—literally—could save billions of dollars

A dollar bill gets around, passing from hand to hand, falling on streets and sidewalks, eventually getting so grimy that a bank machine flags it and sends it to the shredder. Rather than destroying it, scientists have developed ...

Bitcoin bursts: Hacker currency gets wild ride (Update)

It's a promising form of electronic cash free from central bankers and beloved by hackers. It—Bitcoin—may also be in trouble, registering catastrophic losses that have sent speculators scrambling.

Is there any point in recycling?

To sort or not to sort, that is the question. Lots of people wonder whether it's really worth their time and effort to separate, wash and store recyclable materials – especially if it takes more energy to recycle, or if ...

Japan's DoCoMo eyes cash transfer by cellphone

Japan's top mobile telephone operator NTT DoCoMo said Wednesday it aimed to launch a new service enabling cash transfers simply by entering the recipient's cellphone number.

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