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By Deborah Tate Capitol Hill 12 July 2007 U.S. congressional investigators working undercover say they have obtained a license to buy enough radioactive material for a radiological bomb, without much scrutiny from federal regulators. The investigator
Palms to the sky, we unite I'm feeling it, feeling it, feelin-fee-feeling it We rise tonight I'm checking you out in your sweet desire I'm coming over to make you mine It's a crime boy, you're so fine I'm checking you out boy it's a green light I'm g
American inventor John Goodenough first started working on battery technology more than 40 years ago. Goodenough actually co-invented lithium-ion batteries in 1980. This eventually led to a revolution in the electronics industry because those devices
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. The heart-stopping news from Stockholm is that the heart never stopsgrowing, that is. Because researchers have shown that the human heart continues to pr
Palms to the sky, we unite I'm feeling it, feeling it, feelin-fee-feeling it We rise tonight I'm checking you out in your sweet desire I'm coming over to make you mine It's a crime boy, you're so fine I'm checking you out boy it's a green light I'm g
今天我们要学的词是radioactive。 Radioactive, 放射性的。日本政府证实, Traces of radioactive iodine have been detected in Tokyo and the Kanto area, 东京和关东一带发现了微量放射性碘。 Tap water in a village near t