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esercizio 6 - capitolo 12 - presentation and practice 2

jack built a new sensor to detect pancreatic cancer.
ann succeeded in creating a flashlight without any batteries or other forms of energy.
elif managed to turn banana skin into bioplastic.
rene used social media to show a more sympathetic and hopeful aspect of his community.
kelvin was able to build a generator using homemade parts or things taken from the rubbish.