.... power from the PCB under test. Care should be taken in attaching the clips to safe voltages; you 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 u .....

.... CT scan is a diagnostic test that combines the use of x-ray with computer technology. A series of x-beams from many different angles are used to get these cross-sectional images of the patient’s body. In a computer, these pictures are assembled into a 3-dimentianal picture that can display organs, tissues, bones, and any such thing. It can even show ducts, blood vessels and tumors. One of the advantages of CT is that it clearly shows soft tissue structures (such as brain), as well as dense tissue structure (such as bone). The pictures of a Ctscanner are a lot more detailed than the picture .....

.... power plants that burn coal or oil in also releases pollutants into the atmosphere. The major pollutants from these source are nitrogen- oxides, sulfur-oxides, and carbon dioxide. The rapid growth of population and industry, and the increased use of automobiles and airplanes has made a very serious and complicated problem. The air we know today and breathe has become so filled with pollutants that it can cause little health problems to fatal health problems such as lung cancer. Polluted air also harms most kinds of plants, animals, the materials that building are made up of, .....

.... Well, this disease is known as "diabetes mellitus," diabetes from the Greek word meaning excessive urination, a symptom the Greeks noticed, and mellitus, from the Latin for honey, which is because diabetic urine is filled with sugar and is sweet. Physicians and medical books use the term diabetes mellitus, but is the most commonly called diabetes. There are two major types of diabetes: type 1 and type 2. Both of them are a little different. But everyone with diabetes has one thing in common: Little or no ability to move sugar--or glucose--out of their blood into their cells, where it is the .....

.... the storm center, for the same reason that the air swirls around a tornado center. As this 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 .....

.... would change greatly after many years. It is the difference between this ratio now and the time is died that allows a date for it to be established. Potassium-argon dating, another dating method, is possible due to volcanic ash and rocks found near many fossil sites. Rocks and ash created in this manner contain potassium-40, but no argon. As time passes, the potassium-40 decays into argon-40. In the laboratory, the sample is reheated, and since argon-40 is a gas, it is released. The ratio of argon-40 released to potassium-40 still present allows for a date to be assigned to objects n .....

.... no more than a 1/2 gram. The joey stays in its mother's pouch for 5-7 months. The term "joey² is used when you are talking about a baby marsupial. The mother gives "pap² to the joey, a liquid from the caecum (which is similar to the human organ, appendix.) This is thought to give the joey the ability to eat only eucalyptus leaves. When the joey emerges from the pouch, it clings to its mother for another seven months. The joey stays with its mother for another three or four years, until it is fully grown. Diet Koalas eat eucalyptus and don't drink water. I guess that's how they .....

.... that are suspected of having biological warfare programs are unfriendly toward the U.S. Some of these countries are located in the Middle East and some are signatories to the Biological Weapons Convention. This 1972 Biological and Toxin Weapons Convention, prohibited its signatories from possessing or employing such weapons. This possess a significant threat to the U.S. and all the other countries who hold grudges with the ones who have biological warfare programs. Nations acquire biological programs because they view it as an "inexpensive route to acquisition of a weapon of mass destruc .....

.... vegetation in that area characterized as is needleleaf conifers, evergreen pine, spruce, fir, Russian larch and a deciduous needleleaf. Global Climate and Species Adaptations Nome, Alaska is located in ET/Dwd of Koppen climatic classification. Most of this area experiences permafrost condition. Temperature of the warmest month is between 0-10C. Continuous snow covers the land for 8 – 10 months. Total annual PRECIP for Nome is 14.88mm. Daylength varies greatly throughout the year. Nome experiences long, cold winter and cool summer. Precipitation exceeds small potential evapotranspirati .....

.... built for jumping. It has two long, powerful hind legs with four toes on each. The front legs are short and have five toes with claws. These paws are used to handle food. Most of it's weight it in the hind legs and tail. Kangaroos can jump across flat land up to thirty miles an hour. Even though it is quite timid, kangaroos can fight very hard. They use there paws to position an opponent, and then kick them with the powerful back legs. They can rip a dog or small child to death with a single stroke. Kangaroos belong to the family Macropodidae, or Marsupials. It is related to the Ko .....