A 15 year old girl in Canada has invented a flashlight that produces light just by using the warmth of your hand. Ann Makosinski, from British Columbia, invented the thermoelectric ‘Hollow Flashlight’
A 15 year old girl in Canada has invented a flashlight that produces light just by using the warmth of your hand. Ann Makosinski, from British Columbia, invented the thermoelectric ‘Hollow Flashlight’