Saul Griffith dreams of giant kite turbines creating huge amounts of
clean, renewable energy.
Wind is the second largest renewable resource after solar. But the majority of wind power is in high altitudes, well above 300 feet - beyond the reach of today's wind turbines. We don't have a technology (yet) capable of tapping into this rich source of wind energy.
This idea was described by Miles L. Loyd in his paper "Crosswind Kite Power". He… Continue
My everyday wish list includes a shower head that not only saves water (this is common) - but has a "pause" button.
You could stop the water flow at any time (e.g., while shampooing your hair) and then restart the water flow -- at the same temperature.
Some people suggest you turn a shower on and off while you're using it, to save water. If you're fortunate to live where water supply is not an issue, that sudden blast of cold water (while the temperature readjusts) prevents… Continue
Scenario: A pandemic flu reaches my part of the world in the 2011.
I would organize "opinion leaders" from many diverse groups to spread the message online. Individuals would be chosen based on their demonstrated commitment to serving the social good, not celebrity status.
The goal is to reach as many people as possible, and spread reliable information about the pandemic flu - including the URL of a "dark site".
This group of opinion leaders would be diverse and… Continue
Added by Jean Frankly on May 2, 2010 at 4:41pm —
It's curious how we can influence and inspire others - without even trying.
When you act true to your deepest values or pursue an undertaking with total commitment, people tend to stop and notice. Chances are you don't realize what's happening because you're so immersed in what you're doing.
You're doing something special. Your actions may impart a lesson that is remembered - long after you are forgotten. And that's okay.
Sometimes you try to influence or help a… Continue
How do you find water in the desert, arid climates, and future deserts (desertification)?
Ancient wells (khettaras) in Morocco:
An ancient solution to creating a reliable water supply in the desert was developed in Iran more than 3,000 years ago. Qanats are man-made subterranean tunnels that lead groundwater to the surface for irrigation. Today these wells are found in the… Continue
This is not a disaster. But when the public transit system (especially the subway) breaks down, parts of my city grind to a halt. The transit system backs up quickly. People are stranded on street, or face a long walk to their destination.
Who is most affected by transit breakdowns in my city?
People who rely on the subway or buses to get to work or school.
People on a fixed income who need affordable transportation.
How can poor farmers grow their crops using less water and fertilizer?
Drip irrigation (also: trickle irrigation or micro-irrigation) saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil surface or directly onto the root zone, through a network of values pipes, tubing and emitters.
I first read about drip irrigation in the book "The Blue Sweater: Bridging the Gap between Rich and Poor in an Interconnected World". It… Continue
I'm a long-time supporter of FoodShare in Toronto, Canada. While food banks are necessary, organizations like FoodShare empower people through education, grassroots efforts, and smart local economics. Their wholistic approach looks at the entire food system - how food is produced, distributed and consumed.
Some of FoodShare's initiatives:
Good Food Box - People buy boxes of fresh, healthy foods at cost from local…
The Field-to-Table program is a not-for-profit healthy food delivery system for Toronto’s low-income citizens, operated by FoodShare since 1992. It's a smart wholistic approach to food distribution that is community-based and market-driven in a way that supports local farmers.
In an ideal world, we could convert our physical activity (walking, running, exercising, etc.) into stored energy. Gym equipment would have energy storage cells. Also, wind energy passing through (electric) cars and transportation vehicles would be captured and converted.
Healthier active people. Clean(er) renewable energy.