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Monday, December 23, 2013

Some Facts on Energy

Coal generates more electricity than any other source. It produces twice as much electricity as natural gas.
America burns nearly half of the world’s gasoline.
More than 1/5 of the world’s primary energy is used for transport, followed by industry, construction, and
agricultures. Much is in the form of gasoline, of which nearly 792.5 million gallons is burned every day.
The top seven oil consumers combined use more than half of the world’s total. The United States alone uses
more than a quarter.
A “watt” is a unit of power that measures the rate of producing or using energy. The term was named after
Scottish engineer James Watt (1736-1819), who developed an improved steam engine. Watt measured his
engine’s performance in horsepower. One horsepower equaled 746 watts.
Just 1/3 of the energy in burning coal reaches the consumer as electricity.
Researches note that energy is the key “to the advancement of civilization” and that energy is the catalyst
that allows human societies to evolve.
The word “energy” comes from the Greek energeia, meaning operation, activity.
Energy cannot be destroyed or created—only transformed.
Albert Einstein defined energy as mass multiplied by the speed of light squared, or e=mc2.
Food contains energy, which is measured in calories or joules.
oil reserves The world's oil reserves will last until 2052
According to the World Fact Book 2008, the world’s oil reserves will
last until 2052 and gas reserves will last until 2065.e
The World Coal Institute says that, at current production levels,
proven coal reserves are estimated to last 147 years. That means no more coal after 2155.
More than 1/3 of the world’s crude oil is refined into gasoline. Other main products are distillate fuel oil
(mainly diesel oil) and jet fuel (mainly kerosene).
Inefficient appliances, drafty windows and doors, poor insulation, and other fixable energy wasters cost U.S.
consumers an estimated $300 billion a year—more than the U.S. military budget.
If a person yelled for 8 years, 7 months, and 6 days, he or she would produce enough energy to heat one cup
of coffee.
A hurricane releases 50 trillion to 200 trillion watts of heat energy. This is as much energy as a 10-megaton
nuclear bomb exploding every 20 minutes.