A hydraulic crane is a machine which is used for hoisting and moving heavy materials. Generally cranes are equipped with a winder, ropes, chains and sheaves. Hydraulic cranes are usually used in transport, manufacturing and construction industries. They are of…
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Let’s agree from the start that in order to narrow mankind’s greatest accomplishments to a list of ten, we should set our parameters. First, this is a list of invention, not discovery, so one shouldn’t expect to find something like…
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Recreational drugs are often considered to be the byproduct of the Sixties, but the drugs themselves have long histories of both legal and illegal use before that time. There are different classes of recreational drugs as determined by the legal…
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Science is often seen as indecipherable, as is the process to obtain that knowledge. Scientific knowledge is based on observations made during experimentation and testing. This structure for obtaining knowledge is known as the scientific method, a logical stepwise progression…
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Summary: An intelligent stocking filler; a trivia book for somebody with a scientific mind and a predilection for logical puzzles. Amusing, informative and idiosyncratically whimsical; but a bit slight overall and repeats points from Barrow’s other books. 4/5. * I…
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Just about everyone has experienced them. Afterimages occur after a person has stared fixedly for several seconds at an image, a bright light or an especially vivid pattern. When the person directs his or her gaze to another area, a…
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Consider a jet and a propeller driven airplane side by side on the tarmac. The engines will of course look very different. The jets wings will be swept back much farther and it will look sleeker and faster. But most…
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It seems that in order to determine if ideology can be separated from idology you have to define ideology. My favorite definition comes from Terry Eagleton in his first chapter of “Literary Theory”. Eaglton says that everything society constructs is…
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What troubles me about the U.S. Governments attempted exploration of Mars,is that just like the misguided invasion of Iraq.George W.Bush’s desire to explore Mars,is driven by his bizare,fundamentalist,religious beliefs.It’s a Historical fact that in the times ofthe Roman Empire,the ancient…
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Scientists are always curious. I am a scientist. My colleagues and I frequently tackle challenging topics just because we are interested in learning the why and how of what we observe. Unfortunately we are sometimes hindered by lack of time, lack of funding or…
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