From cool iPhone covers made from old skateboards to silicon chips that can turn your shoes into phone chargers, there’s a lot of phone-related green tech out there this week.
How’d you spend your summers during college? Working a crappy job? Taking more classes? Laying around in front of the TV at your parents’ house? In Burlington, Vermont, a group of students undertook an internship under the tutelage of physics teacher Tom Tailer to eliminate the the electricity use of refrigerating and freezing food by building a passive freezer “out of mostly local, recycled or reused products.”