Shiny stainless steel window sills on the inside of the house. When the sun shines in. They heat up and radiate heat. Inside the house. The warmth radiated wouldn’t be that much. But some.
Fort St. John, BC, Canada
My idea is to place a magnetic grid under towns then people could use hovercars to get around and not ruin the environment by using gas.
Instead if using 100 billion dollars to build a high speed rail system that will serve a limited pool of Californians, we should explore the possibility of creating a maglev rail system (MLRS) adapted for use by the majority commuters who still drive in single occupant vehicles. Existing vehicles could be retrofitted and new vehicles could provide the feature as an option.
The Department of Transportation could choose an existing High Occupancy Vehicle (HOV) lane to begin a pilot program. Existing internal combustion engine vehicles that have been retrofitted with a MLRS skid underneath the chassis would access the lane just as they do a traditional HOV lane.
The rail gently sloped in the center of the lane would be oval shaped (similar to Bott dots but continuous and larger surface area). Once a vehicle gains access to the MLRS its speed, load and lift would be centrally controlled, creating a truly intelligent highway that is commuter friendly, green and cost efficient.
Davidson, SK Canada
Dozens of donation-based websites exist promoting tree planting, locally and globally. But as a city apartment dweller, if I really wanted to plant a tree myself, maybe this idea would work.
Let’s say I buy a nice Spartan apple tree from some guy on Craigslist. Then I walk around my neighbourhood and see if anyone with a little patch of sunny space would accept my gift of both the tree and its planting.
Who knows, I might make a new friend, and even feast on the fruit of this simple labour over the years to come.
Just an idea.
The sun-facing exterior of a building could be clad with a passive solar collection system such as black tubes enclosed in a translucent casing. In winter, a solar-powered fan at the bottom could draw in cool air and circulate the hot air at the top back into the building. In summer, the hot air could potentially drive a turbine to generate power to cool the building.
My idea is to make a device that converts carbon dioxide into oxygen. It could be like an air purifying device that is placed inside the exhaust pipes in cars, thus stopping emissions before they are even a problem. Now I have no idea how to make something like this or if it is even possible but if there is someone who would know and that would like to help make this idea a product.
What if you buried sponges in the top of your dirt, would they hold the water longer before they let it all go away, and so getting more from it, more cooling more absorbed into plants, because it is there longer, wouldn’t it allow the planet to cool better if the water stayed closer to the surface longer?
Use a garden hose to spin turbine that spins a flat disk for electrical generation. Volume of water would determine power output.
All of us walk at least 5 km a day from the time we wake up until we go back to bed. We can collect walking energy and convert it to electricity. Using a shoe that generates and stores electricity you will have enough power to charge your phone or night lamps from a day’s travel.
Imagine all those thousands of cars parked for hours in a shopping mall with unused electricity stored in their batteries.
Each car could donate up to 50% of its battery level in exchange for free parking and help recover the parking lot’s usage of electricity. Or for huge parking facilities, cars could be attached to a power grid to power community needs and to offset carbon emissions while vehicles are not in use.
It only takes a few minutes to recharge the battery of a car while driving, then it’s ready again to donate the next time it parks.