.... underwater mountain ranges have a deep trench which bisects the length of the ridges and in places is more than 2000 meters deep. Research into the heat flow from the ocean floor during the early 1960s revealed that the greatest heat flow was centered at the crests of these mid-oceanic ridges. Seismic studies show that the mid-oceanic ridges experience an elevated number of earthquakes. All these observations indicate intense geological activity at the mid-oceanic ridges. Geomagnetic Anomalies Peridically, the Earth's magnetic field reverses. New rock formed from magma records the orientation of Earth's magnetic field at t .....

.... carbon and hydrogen(Gasoline). When the gas is burned in the engine of the car, several byproducts result. These exhausts include hydrocarbons and oxides of three elements: Carbon, nitrogen, and sulfur(Emissions). Tiny amounts of poisonous trace elements such as lead, cadmium, and nickel also are present. Everything contained in the exhaust affects the environment intensely. Auto engine exhaust contributes about 50% of today's atmospheric pollution, and in highly populated and industrialized cities, air pollution consists of up to 80% car exhaust. Because of all of the gasoline powered cars on the road, the earth's out .....

.... The many nuclei of skeletal muscle fiber are located underneath the sarcolemma, which is the fiber’s plasma membrane. Thousands of invaginations of the sarcolemma, which are called T Tubules, Tunnel from the surface to the center of the muscle fiber. These T Tubules are open to the outside of the fiber and are filled with extra-cellular fluid. Muscle action potentials propagate along the sarcolemma and through the T tubules and quickly spread through the muscle fiber. This process ensures that all parts of the muscle fiber become excited by an action potential virtually simultaneously. The sarcoplasm is located inside the .....

.... does not stop his ravings and the crowd doesn't stop their dance. Instead the man becomes entirely deranged, screaming at the body of the young man that he is now going to hell where he rot in flames of agony for eternity. The crowd roars and the man laughs. What do you suppose would now transpire? At the very least the man and the crowd would be arrested. More than likely there would be several charges of third degree murder laid, certainly with several convictions. The preacher would most likely be taken to a hospital for a psychological examination, be diagnosed a paranoid schizophrenic, and be placed into an institution for .....

.... rip," (see terminology sidebar, page 57) says a Forest Service fire officer on the eastern seaboard. "When you're messing with fire, there's always a chance one will escape," echoes his counterpart in California's Sierras. "The fuels are tricky..." adds Ron Meyers, who directs prescribed fires for The Nature Conservancy from his base in Florida. Such concerns are real. Paul Tine, acting Forest Service fuels specialist for the sprawling eastern U.S. region, remembers well what he calls "the lowest day I've ever had in my 18-year career." As fire boss on a 40-acre prescribed burn on Minnesota's Superior National Forest in the '80s .....

.... then its gravity is very strong, and the escape velocity is high. A lighter planet would have a smaller escape velocity. The escape velocity also depends on how far you are from the planet's center: the closer you are, the higher the escape velocity . The Earth's escape velocity is 11.2 kilometers per second (about 25,000 M.P.H.), while the Moon's is only 2.4 kilometers per second (about 5300 M.P.H.).We cannot see it, but radiation is emitted by any matter that gets swallowed by black hole in the form of X-rays. Matter usually orbits a black hole before being swallowed. The matter spins very fast and with other matter forms an .....

.... balance pans when they are empty. The accepted period will be the average of the class. To find the period, you will measure the amount of time it takes for your balance to complete 20 oscillations. The period (T) will be computed by taking your time and dividing it by 20. This will be recorded as T2. 2) You will then measure the mass of your empty pan (including all screws) and record this as m2. 3) You will then measure the mass of one c-clamp. Record this as m1 accepted. 4) Using the inertial balance, find the time it would take for 20 oscillations of the c-clamp (which should be attached to the empty pan). .....

.... that physicians had a more scientific view on depression. Sigmund Freud and Josef Breuer discovered that depression is a psychological and not a demonic force or organic abnormality. Depression is caused by many factors. The loss of a loved one during childhood or other traumatic experiments (ie. abuse) can increase person's chances of developing depression later on in life. The number one cause of depression is stress. The everyday stresses in life can build up and cause a person to break down completely. Scientists have found that depression can be caused by "the defective regulations of release of one or more natural .....

.... and from it comes the thumb and the four longer fingers. The thumb is short and used for climbing or walking. The fingers are long and thin. Interlocking the fingers is the wing. This set up of having the fingers in the wing gives the bat amazing flight maneuverability (Honders 22). These bones look similar to a human hand. They are connected by rubbery skin to the bat's body enveloping all the fingers but the thumb (Bats in CT 1). Echolocation Bats have a "sixth sense" called echolocation. This was first proved by Donald Griffin. Bats produce ultrasonic sound waves and then use the echo of the returning sound to .....

.... tremendous variety of plant species is, in part, a reflection of the many distinct cell types that make up individual plants. Fundamental similarities exist among all these cell types, however, and these similarities indicate the common origin and the interrelationships of the different plant species. Each individual plant cell is at least partly self-sufficient, being isolated from its neighbors by a cell membrane, or plasma membrane, and a cell wall. The membrane and wall allow the individual cell to carry out its functions. Tissue Systems There are many variants of the generalized plant cell and its parts. Similar ki .....