1. BODYPOWEREDDEVICES Thispicture shows a bodypowereddevicewhichisusedtoturnlocomotionintopower. Thisis posible becausetheyintroducedpiezoelectriccrystalsinto a flexible,biocompatiblerubberlike material that,whenbent,allowsthecrystalsto produce energy.

2. ITSAPPLICATION Use : youhavetoputthecrystals in shoes, orimplantthemdirectlyintothebody and itcould produce enoughpowertocharge personal electronicsorinternalmedicaldevices.

3. ITSIMPORTANCE Thisyear Michael McAlpine of Princeton Universityfiguredoutthisdiscovery . It has a veryimportantscientificimportance. it has madepossibletheadvance in somefields: medicine ,social life. Nowsomepeople can havebetteroppotunities at job,forenjoyingthemselves…

4. MY OPINION I thinkitis a fantasticinvention ,becausepeoplewhohaveproblems,disabilitieslikenotbeingabletowalkorlackinganarm can use BodyPoweredDivices can solvetheirproblem and improvetheir lives.