Upwards of 40% of food produced in developing countries is wasted due to lack of electricity and poor refrigeration. With that in mind, four University of Calgary students have invented a fridge that doesn’t require electricity to run. Inspired by the way animals cool themselves, the machine uses a funnel catch air brought through a pipe immersed in fluid to cool the air inside. That air is then moved to a below ground refrigeration chamber to chill the food, similar to how a meerkat burrows into the ground to avoid heat. The inexpensive fridge recently won an international competition that seeks solutions to sustainability problems, and could potentially help reduce food waste in developing countries.
Students invent fridge that runs without electricity
More of Today's Solutions
What OB-GYNs want every mother to know about how pregnancy changes you
With Mother’s Day just behind us, conversations about everything that mothers give are top of mind. However, the biology of pregnancy has something more ...
Read MoreWhat Hanoi learned by tearing down its park fences and opening up to everyone
BY THE OPTIMIST DAILY EDITORIAL TEAM In many cities, entering a park is a deliberate act. You adjust your route, find a gate, and ...
Read MoreWhat cities can learn from Spokane’s approach to homelessness
The common approach cities take to deal with homelessness is tough enforcement: ticketing people for panhandling or sleeping in doorways or busing them to ...
Read MoreNew nasal spray treatment could help prevent Alzheimer’s
According to the World Health Organization, around 55 million people worldwide suffer from dementia. Although there’s currently no cure, researchers are unabatedly looking for ...
Read More
