Is This The World’s Most Efficient Windmill?

Is This The World’s Most Efficient Windmill? (photo: William Kamkwamba)

Sometimes the epitome of efficiency is using whatever tools are available to accomplish the job at hand. No one understands this better than William Kamkwamba, a teenager from rural Malawi whose ingenuity provided his family and neighbors with electricity from a most unlikely source.

[Read More]

HippoRoller Water Carrier – Simple Efficiency With A Far-Reaching Payoff

HippoRoller Water Carrier (photo: HippoRoller.org)

Water is an immediate, fundamental need for human survival, but one in six people worldwide don’t have immediate access to water resources, particularly in arid regions of southern Africa. The HippoRoller is a deceptively efficient water carrier with the potential to offer huge health, economic, and social benefits to developing communities.

[Read More]