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

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.


High School Captures 280,000 Gallons Of Water Per Year

Our buildings and homes could capture all water we need on a daily basis. A great example of rainwater harvesting can be found at the Langston Brown Community Center and High School in Arlington, Virginia. The community center has two 24-foot-tall 11,000-gallon cisterns that store rainwater.


New Washing Machine Uses Plastic Chips Instead of Water

A washing machine that cleans clothes by pounding them with plastic chips could save billions of gallons of water a year, its inventors claim. The Xeros uses less than 2 per cent of the water – and energy – of a conventional model and leaves clothes almost dry, doing away with the need for a dryer. The machine uses thousands …

Wind-Up Universal Remote Control

This is a remote control that you can charge by turning a small hand crank — thus eliminating the need for batteries. You can control six different devices with the remote, including your television, DVD player, VCR, cable, satellite, and an auxiliary module. The wind-up generator requires only 30 revolutions for a full charge, which will last seven days. It’s …

Hyper-Optimal: Create an Oasis with Greywater

The book “Create an Oasis with Greywater” by Art Ludwig is packed with information about how to reuse greywater by diverting it into your garden. What is greywater? It’s all the “waste” water produced in a house besides sewage — e.g. water from showers, sinks and washing machines. This is a key meta-efficient technique because, when done correctly, and combined …