Chang, in his persistent way, has gone about changing that.

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The McEnroe-Connors era gave way to the Sampras-Agassi-Courier-Chang era, and American tennis and its popularity was in good hands.

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The fabric Jonathan Engel and Chang Liu have produced has a similar strength to nylon and can conduct electricity thanks to the way it is formed by interlocking rings and rectangles of about 500 microns in width.

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