Monthly Archives: July 2009
Flyash: Air Pollution
Fly ash is one of the residues generated in the combustion of coal. Fly ash is generally captured from the chimneys of coal-fired power plants, and is one of two types of ash that jointly are known as coal ash; the other, bottom ash, is removed...
Acid Rain: Air Pollution
Another effect of air pollution is acid rain. The phenomenon occurs when sulphur dioxide and nitrogen oxides from the burning of fossil fuels such as, petrol, diesel, and coal combine with water vapour in the atmosphere and fall as rain, snow...
Smog: Air Pollution
The term smog was first used in 1905 by Dr H A Des Voeux to describe the conditions of fog that had soot or smoke in it. Smog is a combination of various gases with water vapour and dust. A large part of the gases that form smog is produced...
Say Goodbye to the Amur Leopard
A new census estimates that only 25 to 34 wild Amur leopards remain’s at least 66 fewer than are needed to ensure survival, experts say.
Also known as the Far Eastern leopard, the Amur has been painted into a deadly corner by habitat-slashing,...
U.S. and China Together With Memorandum on Climate Change
The United States and China, the world’s largest emitters of greenhouse gases, signed an agreement that promises more cooperation on climate change, energy and the environment without setting firm goals.
Chinese and U.S. officials signed...
Berwyn: Global warming: Rhetoric or Reality
It never ceases to amaze how the simple mention of global warming in a news story sets off a tsunami of rhetoric. It generally comes from a very vocal minority that would go to its grave swearing that the sum total of climate science is a liberal...
Tsunamis
The most infamous tsunami of modern times hit Indian Ocean shorelines on the day after Christmas 2004. That tsunami is believed to have packed the energy of 23,000 Hiroshima-type atomic bombs. Some 150,000 people were killed in a single day.
A...
Lightning
Contrary to the common expression, lightning can and often does strike the same place twice, especially tall buildings or exposed mountaintops. Cloud-to-ground lightning bolts are a common phenomenon—about 100 strike Earth’s surface every...
Accepting the Diagnosis of Autism
Receiving a diagnosis of Autism can seem overwhelming. You may be left with a lot of unanswered questions about the diagnosis. You might be thinking the diagnosis is wrong. This cannot be happening to your child. There are different feelings...
Testing Relativity, Black Holes And Strange Attractors In The Laboratory
Even Albert Einstein might have been impressed. His theory of general relativity, which describes how the gravity of a massive object, such as a star, can curve space and time, has been successfully used to predict such astronomical observations...