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The supermarket is based on the model “take what you need, give what you can”. In Australia they have opened their first free supermarket with products that would be discarded. Everything is free for those who cannot pay, or you can donate the amount you want. This is something that we are not used to

Repsol has produced the first batch of biojet on the Spanish market at its Puertollano Industrial Complex , making it the pioneer company in the manufacture of this sustainable fuel for aviation in Spain. The first batch consists of 7,000 tons of aviation fuel with a bio component, equivalent to the consumption of 100 Madrid-Los

This dishwasher uses ultrasound technology to wash our dishes with just one glass of water a month. It is a portable model that the designer Alexey Danilin has made for the Electrolux firm. Also, and not least, you do not need detergent for washing. Seen on: designeast.eu

Plastic bottle recycling machine. Image: Rokas Tenys Shutterstock One way to reduce some environmental problems is to use the by-products as raw material for other economic activities. Here are four alternatives, ranging from plastic waste to cockroaches. Methane gas for buses in Karachi. The Green Climate Fund and the Asian Development Bank are financing a

The turbine was tested in the French laboratories of the National Institute for the Exploitation of Marine Resources. Its particular variable geometry makes it ideal to take advantage of any turbulent water stream. With no dams or large infrastructure, the WindCity turbine uses the variable geometry of water flows to produce clean energy. WindCity’s hydrokinetic

This manual aims to give some basic knowledge about beekeeping work, especially to the smallest of the house. Beekeeping is a practice in which through the care of bees we obtain direct benefits (honey, pollen, propolis …) and indirect (pollination of plants). A complete definition would be “the applied science that studies the honeybee and

The energy consumption of buildings accounts for more than a third of the total energy consumption of India. Add to this the fact that more than 70% of the buildings to be erected in India in 2030 have yet to be built. It is clear that making buildings energy efficient, as well as local producers

If getting in shape is one of our goals, now you will discover the way to lose weight without having to join a gym and without forgetting your concern for the environment. Some simple tips with which you will improve your health. 1. Drive less. Walk more. Use the bicycle. Everyone knows that leaving the

Serrated teeth wind turbine blades. Image: Bernd Zillich – Shutterstock. Researcher Elena Llorente Trujillo, in her doctoral thesis, has studied how the installation of serrated teeth on the trailing edge of the blades influences the aerodynamic performance of wind turbines. Their results could increase the efficiency of wind turbines. These devices and their effectiveness in

Silicon solar cells placed in spheres take advantage of scattered light to make the collection of solar energy flexible even in small devices. Flat solar panels still face major limitations when it comes to making the most of the available sunlight each day. A new spherical solar cell design aims to increase solar energy harvesting