Electric Folding Bikes: Ultra-Efficient City Travel

Folding bikes are particularly efficient when used in conjunction with public transit. Unlike regular bikes, they can be taken easily on buses, trains or ferries. In fact, some transit systems will only allow folding bikes to be taken on board. For a little extra weight, you get the benefit of going up hills easily, and this is often very important …

The Fluoride Debate

It’s in our drinking water, our toothpaste and even the bottled juices and sodas we drink. Fluoride, according to the American Dental Association, is a key mineral in the fight against cavities and can even repair the early stages of tooth decay. The ADA warns, however, that, like any other nutrient, fluoride can be misused and, in some circumstances, can …

Longest Urban Bicycle Route In U.S. Sees Record Growth

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The East Coast Greenway is an urban network of trails stretching 3,000 miles from Key West, Florida to Calais, Maine on the Canadian border. Founded in 1991 by a group of trail advocates, the East Coast Greenway (ECG) began as a vision to provide cyclists and pedestrians with a safe and continuous, traffic-free route connecting 25 major cities along the …

3 Reasons Light Rail is an Efficient Transportation Option for U.S. Cities

Light rail is a type of electric railway that runs on right-of-way railroad tracks or on tracks in city streets. Using their own lanes and able to go anywhere, light rail cars mix well in urban settings by not getting caught up in traffic congestion. Though the United States operates the largest and most efficient freight railway system in the …

The Best Electric Scooters Of 2012

You may have been looking for our review of electric bikes. e-Zip E750 Electric Scooter by Currie Technologies This electric scooter, the e-Zip 750, is currently the top-rated electric scooter on Amazon, with an average 4.5 out of 5 stars from 69+ reviewers. It has a 12-mile range (depending on rider weight) and top speed of 15 miles per hour. It’s …

The Best Water Filters Of 2010

There are a lot of misleading claims about water filters. Many filters are marketed with general statements like “improves taste and odor”. But filter manufacturers don’t mention the specific amount of pesticides or chloramines removed, for example.

How To Filter Your Drinking Water Very Efficiently

I’ve spent quite a bit of time researching how to filter drinking water effectively. Originally, I was interested in filtering the rainwater that falls on my roof. But I had to put that project on the back burner for now. During my research I noticed that there is little unbiased information available on water filters and filtration techniques.

New Rooftop Wind Turbine Tested: The Helyx

Recently, I wrote about the low-profile Aerotecture wind turbines, which are designed to be installed on the rooftops of city buildings. Now I’ve heard of another rooftop wind turbine under development. It’s called the Helyx Wind Generator, and it’s composed of two twisted wings of fiberglass that rotate around a vertical axis. The turbine is also colored bright green, which …

The Three Fundamental Flaws Of The Modern Toilet

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My unwinking, analytical gaze of efficiency now turns to the toilet. Unfortunately, the design of the modern Western toilet is highly inefficient, in fact, it is so inefficient that it is actually harming our health. The modern toilet has only been around for about 150 years — the “porcelain throne” was created to “give dignity” to the water closet, rather …