เผยความลับน่าทึ่งของ “ลิ้นแมว” ต้นคิดของสิ่งประดิษฐ์ในครัวเรือน

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Scientific curiosity can lead to some surprising, and useful, discoveries. Consider the cat – questions about its sandpaper-like tongue led to plans for a synthetic version that could be used for household products or to dispense medicine. Faith Lapidus explains.