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50 Miles Per Burrito: Is the Body the Most Efficient Vehicle?

I just noticed this post about some rather clever bike-advocacy shirts at Carectomy and cialis pfizer canada thought to myself "53 Miles per Burrito is a really excellent slogan...but it's also a really excellent point." The question the buy levitra online without a prescription human body actually more efficient than an automobile and, if so...why?

A little bit of research tells us that riding a light-weight bicycle consumes about 35 calories per mile. Walking consumes about 100 calories per mile and is, of course, considerably slower.

Driving a car ends up consuming 1,800 calories per mile. This sure makes one think twice about biofuel, doesn't it?

I try to eat about 2,000 calories per day. If that food was converted to biofuel (as most of it could, since most of it is carbohydrates) it would drive a car less than a mile. But if I use it to bike, I could go 57 miles!

So the question remains, how many miles can I extract from a burrito. Well? You may be surprised to discover this, but a Chipotle burrito with beef, beans, cheese, sour cream and guacamole, comes in at an astounding 1,300 calories. Bust a gut with one of those and you'll find enough energy to travel 37 miles. If it were gasoline instead of cialis online order a burrito, those same calories wouldn't even get you a full mile.

So why is the human body so much more efficient than automobiles?

It turns out that they aren't that much more efficient. Car engines aren't superbly efficient, that's for sure. But what's much more inefficient is the fact that 95% of the net weight of a car is car...only 5% is the driver. With a bike, the equation is shifted significantly toward the weight of the driver, not the vehicle. Only 65 of the 1800 calories used to cialis online cheap move the car are used to move the driver. The rest is indian levitra used to move the doors and the roof and the airbags and the cup holders around with you.

But still, bicycling comes out on top. Our bodies turn out to be almost two times better at converting calories to motion than cars.

Sometimes, if you want to see some powerful environmental technology, you don't have to look any further than your big beefy quadriceps.


Carectomy Week in Review

Modern Biking: A Photo Essay


Sometimes the Path is Perilous...

New Hybrid Technology Flexes Its HE-Manpower

Relying on manpower instead of a motor (Carectomy’s preferred method) means lower emissions. New hybrid technology is making promising progress toward more practical, eco-friendly transportation that uses human exertion and levitra online doctor electricity instead of fuel. The HE (Human Electric) Hybrid Vehicle hasn’t yet hit dealerships, though the phizer brand viagra made in canada concept “car” offers a glimpse of the wheels we’ll be driving in coming years.

High-Speed Rail Coming to America

High-speed rail is finally coming to America. However, it's Argentina and not the United States that will be the first American country to generic cialis in stock build a high-speed rail system and join the modern age of transportation.

The popularity of high-speed passenger rails is picking up in cities throughout the world. Latin America, Europe, and China have big plans to construct or expand such rail systems in the near future.

EPA Protects Cars, Not the Planet

Senator Barbara Boxer, chair of the U.S. Senate’s Committee on the Environment and Public works, released further evidence Wednesday against top EPA Administrator Stephen Johnson. Ignoring the only for you purchasing levitra unanimous sentiments of his staff, Johnson undermined his colleagues—and the law—to stop tailpipe emissions laws from passing in at least 16 states, including California. The laws aimed to lower greenhouse gas emissions from cars and trucks by a third.



Carectomy Week in Review

Aquaduct Improves Bicycle’s Brilliance

It’s no secret that we at Carectomy have a bit of a bike fetish. The smog-free human-powered machine offers the world a 100-year-old solution to its transportation needs.

Thanks to the Innovate or Die – Pedal Powered Machine Contest, we’ve seen bike technology tweaked and put to some interesting new uses. But the winner, the Aquaduct Mobile Filtration Device, could very well change the world.

Mass Transit Trims The Fat


Instead of going to the gym, downing diet pills, or getting gastric bypass to levitra online samples uk get thin and beautiful, why not just take mass transit? According to a recent report by USA Today, taking public transportation instead of driving is a proven way to lose weight and natural cialis pills improve your overall health.

U.S. Train Travel on the Rise

U.S. travelers–frustrated by gas prices, traffic congestion, and the hassle and delays of air travel–are increasingly rediscovering the train. One in four domestic flights arrived late in 2007. Add in the maddening yellow-orange-mauve alert security checks, and it’s understandable why passengers are fed up.

Ethanol Not An Eco-Darling, After All

Despite their popularity, the future for gas-guzzling, inefficient cars doesn’t look promising. As gas prices rise and oil grows scarce, Western nations are scrambling to become self-sufficient in producing their own fuel. In the search for alternative energy sources, ethanol has emerged as a favorite. A recent study by scientists at Stanford University, however, has knocked ethanol from its eco-pedestal.


Gravia Floor Lamp: Human Powered, Never Burns Out

Want turn on your desk lamp? Flip a switch! Right?

Man, that is such pre-energy-crisis thinking! How about, instead, you lift a 50 lb brass weight a couple feet up. The lead weight then, slowly, falls back down toward your desk, producing enough energy to squeeze a few hundred lumens (as much as a 40 watt incandescent) over your workspace for the next few hours.

That, in a nutshell, is the idea behind the cialis online pharmacy no prescription Gravia. Actually, the concept that won runner-up at the Greener Gadgets Conference actually is cheap levitra a floor lamp, and it requires quite a bit more lifting (about six feet) to power it for four hours.

Still, I rather like the idea. It's good to have an idea of where energy comes from, and it's even cooler to know that, if your light is out, you need to do more than just flip a switch. Reports swarming the internet that the lamp will stay lit for for 200 years (thanks for all the misleading headlines guys!) are unfortunately erroneous. In fact, the lamp produces only four hours of light per lift, but the LEDs, according to order viagra canada the designers, will last for 200 years of use without needing to be replaced.

Now if only someone could guarantee me that these aren't just going to take a nose-dive into basements to collect dust like a crank-powered Billy the Big Mouth Bass...then I'll be satisfied. As it is, I can see people getting pretty tired of lifting a 50-lb weight six feet in the air every four hours...


Revolution Door Captures Human Power

Here we have yet another example of using people's everyday actions to produce a bit of power. Already, there's excercise equipment power, body-heated office buildings, and power-generating turnstyles.

But here's another little system that could keep doing its job while generating a bit of electricity on the side. Mostly, it's just a demostration project though. The power generated would likely not be enough to ever pay for the device and many revolving doors are already heavy enough without the added resistance of a generator.

Still, it's hard not to find the idea pleasant.

Via Inhabitat


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