Book Review: Portable Houses

When some people vacation, they take their homes with them. Those are the people Irene Rawlings and Mary Abel write about in Portable Houses, a book devoted to all sorts of movable shelters and the people who created or renovated them. The examples featured in the book range in elaborateness from a canvas miner’s tent to a Boeing 737 jet …

The World’s First Flushable Diapers: gDiapers

gDiapers are innovative diapers invented by a husband and wife team from Australia. They are being billed as the first flushable diapers, and will soon be available in the U.S. The system consists of an outer shell (similar to a diaper wrap), an absorbent flushable insert, and a nylon snap-in liner. The whole ensemble comes with a “swishstick” for breaking …

The Greenest Cell Phones of 2008

Most cell phones don’t even come close to being green — their chargers are energy inefficient, they contain hazardous chemicals, and they not are designed for upgrading or easy recycling. Recently though, some the big players in the field like Nokia and Sony Ericsson are making moves towards green design. As far as assessing which phones are greenest, the best …

Plug-In Hybrid Conversion Packs: 2008

A lithium-ion battery manufacturer, A123Systems, will begin marketing a kit in 2008 that will convert a regular hybrid car into a plug-in hybrid electric vehicle, as known as a PHEV. Currently priced at $10,000 (with a $3,500 tax credit), these modules are still expensive for the average car owner. For example, a commuter driving 11,000 miles per year with gas …

Solar Water Heaters Now Mandatory In Hawaii

Hawaii has become the first state to require solar water heaters in new homes. The bill was signed into law by Governor Linda Lingle, a Republican. It requires the energy-saving systems in homes starting in 2010. It prohibits issuing building permits for single-family homes that do not have solar water heaters. Hawaii relies on imported fossil fuels more than any …

LiFePO4 Batteries: A Breakthrough For Electric Vehicles

LiFePo4_battery_packs_for_EV_24V150Ah

Note: If you looking for AA-sized LifePO4, you can find them here. Soon, we’ll probably be seeing Lithium Iron Phosphate (LiFePO4) batteries being used in most electric cars and bikes. This new battery type is set to dominate the market. Based upon lithium ion technology, LiFePO4 batteries offer many advantages over lithium cobalt dioxide (LiCoO2) batteries which are commonly used …

Naturemill Pro Promises Easy & Efficient Indoor Composting

Nobody’s going to put up with a compost heap in a closet.  But what if you could quickly compost your organic waste with no odors or bugs, indoors or outside, with a device small enough to fit in a kitchen cabinet?  Naturemill promises that its Pro Edition automatic composter will do just that, producing hassle-free compost while using just a …

Reviews of Online DVD Rental Companies

What are the best online DVD rental services? Most people know Netflix, Blockbuster and Walmart are the major players in online DVD rentals. Netflix, which started it all, still gets the best reviews in terms of service, speed and movie selection (see this review for example). However, there are some other interesting DVD rental companies out there. GreenCine, based in …