Scientists discover first nitrogen-fixing organelle

Modern biology textbooks assert that only bacteria can take nitrogen from the atmosphere and convert it into a form that is usable for life. Plants that fix nitrogen, such as legumes, do so by harboring symbiotic bacteria ...

Romania center explores world's most powerful laser

"Ready? Signal sent!" In the control room of a research center in Romania, engineer Antonia Toma activates the world's most powerful laser, which promises revolutionary advances in everything from the health sector to space.

Click chemistry: Research team creates 150 new compounds

Cold Spring Harbor Laboratory (CSHL) chemists have created a new collection of molecular compounds and begun testing them as potential leads in the search for new drugs. Among these molecules, they found several that show ...

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Cello

The cello (plural cellos or celli — the c is pronounced [tʃ], as in the ch in "check", thus "chel-lo") is a bowed string instrument. The word derives from the Italian violoncello. A person who plays a cello is called a cellist. The cello is used as a solo instrument, in chamber music, and as a member of the string section of an orchestra. It is the second physically largest member of the violin family of musical instruments, next to the double bass.

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