我今朝同 Dean Kamen 傾偈 佢係一個偉大嘅 DIY 發明家 佢畀我同你哋分享 佢嘅發明 ︰ 「 Slingshot 」 可能好多人都聽過 佢係一個宿舍用嘅冰箱噉大
I spoke with Dean Kamen this morning, he is a great DIY inventor and he shared his invention with you: "Slingshot", which many of you may have heard of is the size of a dorm room refrigerator