【科学60秒】吃货请注意！_英语听力练习mp3下载-科学-沪江听力酷

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【科学60秒】吃货请注意！

听力简介：

Picture an orange. It’s encased in a biodegradable shell — the peel’s even somewhat edible, as marmalade fans can attest. But we humans often package food in plastic, with its environmental and disposal challenges.
So Harvard scientist David Edwards and colleagues thought, why not take advantage of advances in materials science to mimic nature? The call their result WikiCells. Edwards recently described the development in a talk at Harvard’s Wyss Institute for Biologically Inspired Engineering.
Taking note of nature's clever packaging, Edwards and his team created a membrane made of charged particles of edible substances bound by electrostatic forces. The membrane surrounds a liquid, foam or solid food. Then that membrane is surrounded by an edible or biodegradable hard shell.
The researchers are testing WikiCells at Harvard’s partner Le Laboratoire in Paris, where people are munching on containers of ice cream and soup. The technology is currently a bit of a novelty. But the scientists are working on shelf stability and taste to create a variety of consumer products. ______（请填一句。）________
Of course, clam chowder served in bread bowls is already available in the Harvard area.