.... chisel edge. With these can cut down large trees. It usually selects trees 5 to 20 cm (2 to 8 in) in diameter, but it can fell trees with diameters as large as 76 cm (30 in). Beavers have a pair of anal scent glands, called castors, that secrete a musklike substance called castoreum, probably for marking territories. The animals tend to be monogamous and may live 20 years or more. The female has one litter a year, usually of two to four young. Beavers are social animals. In areas where food is abundant and the locality secluded, the number of families in a beaver community is rather large. The so-called beaver lodge is a uniqu .....

.... atomic chlorine which then would react with the ozone and convert it back into plain oxygen. The even worse part of all this is that these chlorine molecules do not become inactive after the first reaction with the ozone and would be available to destroy more ozone molecules. Thus this process would be the function of a catalyst; a single chlorine atom involved in a chain reaction to destroy many ozone molecules. Rowland and Molina eventually agreed that this thinning of the ozone shield can cause a catastrophe for Earth's living beings, including humans, by allowing large amounts of the deadly ultraviolet-B radiation to rea .....

.... may want to first use a Volt Meter (Digital Multi Meter) to verify the hook up points have good voltages. The four diodes protect the IC from reverse polarity. Capacitor C1 prevents transient voltage from affecting the logic probe when the black lead is not connected. Pin 5 of the 555 IC is grounded through resistor R1. The logic probe will indicate a HIGH for 2V or greater, and a LOW for 0.8V or less. To use this logic probe, follow the procedure. 1. Connect red power lead to +5V of circuit under test. 2. Connect black lead to ground of circuit under test. 3. Touch probe tip to point in digital circuit to be tested. 4. One or t .....

.... females. There may actually be a direct correlation to reduced serum iron levels due to menses. Whereas men " build-up" iron in the blood, women cleanse themselves of iron buildup on the monthly basis. Meyers (1996) also states that oxidation, the process in which an atom increases its positive charges (Miller and Keane, 1992), of low density lipoprotein cholesterol is important in atherosclerosis, and since oxidation is catalyzed by iron, it has been hypothesized that the lower iron stores of women reduce their risk of CAD through lessened lipid peroxide, a by-product of oxidation. Numerous studies have been conducted to act .....

.... lettered names, such as RR Lyrae in the constellation Lyra. Fainter stars are known by their numbers in a catalog; HD 12938 is the 12,938th star in the Henry Draper Catalogue. CHARACTERISTICS OF STARS Each star in the universe has its own position, motion, size, mass, chemical composition, and temperature. Some stars are grouped into clusters, and stars and star clusters are collected in the larger groupings called galaxies. Our GALAXY, the Milky Way, contains more than 100 billion stars. Because tens of millions of other galaxies are known to exist, the total number of stars in the universe exceeds a billion billion. Positi .....

.... from traditional parasites, predators and competitors, purple loosestrife thrived in the environmental conditions and by 1880 was rapidly spreading north and west through the canal and marine routes. Purple loosestrife stands also increased due to the importation of seeds and root stalks by horticulturists. It was introduced to many communities as an herb, an ornamental garden flower and as a desirable honey plant. One of the earliest reported studies of purple loosestrife being a problem in Canada was documented by Mr. Louis - Marie, in 1944. He stated that purple loosestrife was invading the St. Lawrence flood plain pastures .....

.... that enabled them to adapt to this problem. Since water contains an insufficient concentration of oxygen, fishes use gills to obtain the required amount of oxygen---via the counter-current exchange process. As water enters the mouth of a fish, it passes through slits in the pharynx, flows over the gills, and exits at the back of the operculum (gill cover) (Campbell 1997). This ventilation process serves to bring in a fresh supply of oxygen to the fish and removes carbon dioxide expelled at the gills (Campbell 1997). The water that flows across the gills flows in the opposite directions as compared to the direction of th .....

.... of these areas is water. The following four articles reveal that the water supplies that we all depend on are being used at an unsustainable rate. There is not enough fresh water on this planet for current growth rates to continue. The Public Broadcasting Company has posted on the Internet a timeline detailing the Earth's population at different years. According to this Population Timeline, the population in the "year 1954 was three billion"(2), in the "year 2000 the population is at approximately six billion"(3). This means that the Earth's population took thousands of years to reach three billion and only 46 years to double that .....

.... air swirls in over the sea surface, it soaks up more and more water vapour. At the storm center, this new supply of water vapor gets pulled into the thunderhead updrafts, releasing still more energy as the water vapor condenses. This makes the updrafts rise faster, pulling in even larger amounts of air and water vapor from the storm's edges. And as the updrafts speed up, air swirls faster and faster around the storm center. The storm clouds, moving with the swirling air, form a coil. In a few days the hurricane will have grown greatly in size and power. The swirling shape of the winds of the hurricane is shaped like a dough- .....

.... upon which they are in agreement. Comparatively it differs from all other social movements since its common ideas are not the result of philosophic agreement. Technocracy does in fact in theory need science and technology to be based upon, but it is this “science and technology” that the populace overlooks and assumes it as engineered technology. Ideas of engineering are in fact in our bones and part of human nature and experience (Petroski preface). This statement by Petroski is the very basis of technocracy. With it one can claim that No, Science and Technology do not provide a base for Technocracy yet to be a technocra .....