(Edition 44, No. 10)
The building blocks of every protein in our bodies are left-handed. Scientists look back 4.5 billion years, long before the first life on earth, to figure out why.
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Radio Station Personnel: You can download this file in a non-streaming RealAudio format for broadcast on your station. If you click here you will download the actual file to be saved to your hard drive. When the file downloads (in broadcast quality) make note of where on your hard drive the file is saved; most often it will be saved in a directory called TEMP. You can then call up the file and convert it to your own format.
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