How Long Will I Live?

The life expectancy tables used by insurance companies give a clear picture about our longevity.  This explains why smokers pay fifty percent more on their insurance policies.  Research has verified that the cost of smoking entails more than the money spent on cigarettes. Life expectancy in Western countries has been increasing steadily over the last…

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Just Where Is Cyberspace?

These days people talk about cyberspace as if it were a new location out there in regular space. Cyberspace is not spacial the way your house is. When people talk about cyberspace, they’re talking about a virtual place, generated by computers communicating. Cyberspace is information. It’s the word we now use for that huge network…

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Warm Blooded Plants

Few people realize that some plants can actually thermo-regulate themselves. They behave as if they were mammals by altering heat production to keep their temperatures surprisingly constant. Plants with the ability to warm themselves include philodendron, Jack in the Pulpit, Skunk Cabbage and many members of the Lily family. Experiments on some species of philodendron…

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Battling those Bugs

Battling microbes is becoming increasingly important, since bacteria that are immune to antibiotics are now showing up in some food products. Since cutting boards and kitchen work surfaces are common bacterial breeding grounds, it’s important to carefully clean these. Wouldn’t it be nice to always count on having a microbe-free work surface? Well, this is…

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Life In Your Microwave Oven

Microwaves are super high frequency electro magnetic waves often used in communication systems. Most of us meet microwaves when we cook in a microwave oven.  Microwave ovens generate super high frequency waves and scatter them throughout the oven.  The frequency of microwaves is just right to give energy to water molecules.  Microwaves cause them to…

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Explosives

An important application of chemical energy is the use of explosives. Any substance that undergoes a very rapid chemical reaction which has a strong heat-liberating quality, or that produces a large volume of gases from a solid or a liquid, is potentially an explosive. The destructive power of an explosion is due to the shock…

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