Why conserve energy?

 Because there are problems with every known source of energy.

Fossil fuels pollute and are in limited supply. Nuclear fission creates dangerous byproducts. Nuclear fusion still isn’t practical. Solar collectors take up a lot of space, wind farms aren’t very attractive, and building hydroelectric dams usually pushes people and animals out of their environments. So, it looks like energy conservation is the wise way to go.

Here are some ways to use less energy:

• Many cities around the world now have bike-sharing programs. These let people rent bicycles on a short-term basis. Bikes can be picked up at one location and dropped off at another. Have you used one of these bikes?

• In its time, the gasoline-powered engine was a miracle machine. It allowed people to get around more efficiently than ever before. But to cut down on pollution, people are searching for new ways to get around.

One alternative to gas-powered cars is hybrid cars. These run partly on gasoline and partly on electricity. Another option is all-electric cars, which are even more environmentally friendly. Electric cars don’t need gas. Even better, they emit no exhaust fumes. Some of them can travel more than 260 miles on a single battery charge. Or solar-powered cars may be other way; solar cars must be small and light, and while they don’t go very fast, they can go very far.

• In Stockholm, Sweden, researchers are turning body heat into useful energy. A quarter-million people pass through the city’s train station each day. Machines in the ventilation system catch their extra body heat and use it to heat water. That water is then used to warm a nearby building. Energy costs in that building have been cut by 25 percent.

Fission and fusion

Both fission and fusion are nuclear processes by which atoms are altered to create energy, but what is the difference between the two?

What is Carbon Footprint?

Renewable Energy

Learn more about renewable energies, that is, energy sources that are not depleted when used or are naturally replenished within a human lifetime.

Hydropower

Hydropower or hydroelectricity refers to the conversion of energy from flowing water into electricity.
Learn more about hydropower

Potencial vs Kinetic Energy

Scientists define energy as the ability to get work done. The work can be anything from breathing to riding a bike to taking a nap.
But all energy can be in one of two states: potential or kinetic.

Choosing a Light Source

Know each light source and choose the best type of light to use for your projects.

How microwaves work

Do you know how a microwave oven heat up your coffee?
Adjust the frequency and amplitude of microwaves. Watch water molecules rotating and bouncing around.

Remember that the motion of atoms and molecules creates the form of energy called heat.
The faster molecules move, the more heat or thermal energy they create.

Click to Run

The Dutch Windwheel

The Dutch Windwheel is the sustainable future icon. It is the most innovative 'windmill’ in the world and the showcase for Dutch Clean Technology.

It is the dynamic showcase for Dutch Clean Technology and provides a continuous platform to demonstrate technical and technological innovations.One of the innovations that can be developed with the Dutch Windwheel is the EWICON ( Electrostatic WInd energy CONverter) technology. This pioneering wind turbine converts wind energy with a framework of steel tubes into electricity without moving mechanical parts. Result: less wear, lower maintenance costs and no noise or moving shadow. This makes the Dutch Windwheel the most innovative 'windmill' in the world.

 


The outer ring houses 40 cabins that run on rails. Visitors can enjoy an unprecedented view of Rotterdam and the surrounding area from this giant coaster.

Enercities

Build your own sustainable city.

Smart thermal energy

Learn in this video the thermal energy solutions