Only steam comes out of the exhaust gas pipe of a hydrogen car. Hydrogen cars use this gas as fuel: hydrogen vehicles convert the chemical energy of hydrogen into mechanical energy. Hydrogen is burned in an internal combustion engine or, alternatively, by reacting it with oxygen in a "fuel cell" as occurs in Fuel Cell Electric Vehicles, where hydrogen is used to produce electricity to power an engine electric.
Current technology allows us to choose an appliance or a heating or cooling system with a view to saving energy: there are solar panels, wind systems, devices with maximum energy efficiency. It is no coincidence that all appliances are accompanied by a table indicating the energy class to which they belong to index the choice towards greater savings on the bill.
The milk quota regime will end on 31 March 2015. What will happen next? According to Paolo De Castro, president of the Agriculture Committee of the European Parliament, price volatility will increase, which is already very high. Just think that spot milk quoted at 50 cents per liter in December 2013 is now worth 30 cents per liter.
Saving energy in the kitchen means cutting home bills. The kitchen is in fact the most energy-intensive home environment because it is here that the machines that run on gas (cooker and boiler) and appliances that run on electricity usually concentrate.
Among the green economy companies there are those that produce ecological quality goods and environmental services (core green) and those that have adopted green management models (go green). Overall, they are 42 of Italian companies and, according to the Green Economy Report produced by the Foundation for Sustainable Development, they are the ones that have best resisted the crisis, export the most, win on turnover and have the best expectations for the future.
Savannah cat: the sound already recalls its origin. Wild. Yes, because the Savannah cat is a hybrid between a serval and a domestic cat. Of the serval, also called serval, or ocelot, a medium-sized feline that lives in most of Africa, in the Saharan desert areas, the Savannah cat retains many of the physical characteristics, such as size, ears, and "air" .
