âqâ"æç\r½ 7½è!âé©êpÇëì)> íîï-\r99. It has been found that certain bats emit squeaks and by receiving the echoes,\rthey can locate and steer clear of obstacles------ or locate flying insects on which th\rey feed. This echo-location in bats is often compared with radar, the principle of w\rhich is similar..\r99 .145îx!ðñòóîïôõö\÷øOùú-ûüqýþÿ 0@P`p\r?\r?? !"#$%\r&'#(\r100 . As the time and cost of making a clip drop to a few days and a few hundred\rdollars, engineers may soon be free to let their imaginations soar without being pe\rnalized by expensive failure.\r100.)*+,-./0 1234`567 689:;<=>??@"A?\nBC?\rD\rEFGHIJKLM\rNOPQR
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