.... that if a mass was put into some form of periodic motion, the mass could be measured fairly accurately by measuring the oscillation period and comparing it to a known mass period. The relationship m1=m2T12/T22 was discovered. Objective: After completing the experiment, we will be able to find the mass of objects using an inertial balance and compare them to accepted measures. Materials: C-clamps, inertial scale, a watch with a second hand, and a triple beam balance. Procedure: 1) The class will measure the period of oscillation of their balance pans when they are empty. The accepted period will be the average of the class. To find the period, you w .....

.... A kobold was said to be an underground goblin or demon. In 1735 cobalt was identified. Cobalt is a white metal with a bluish cast. It is magnetic and very hard and does not tarnish. Cobalt has many uses and I will talk about some of them. It is a very expensive metal that is used in the manufacture of very many expensive alloys. Cobalt-iron alloys have very unique and special magnetic properties. For example, Hyperco is used as the nucleus in strong electromagnets. Alloys containing titanium, aluminum, cobalt and nickel can be made to become permanently magnetic. One alloy, called Stellite, is an alloy of cobalt, chromium, tungsten, and molybden .....

.... Like all discoveries, this one will and should continue to be reviewed, examined and scrutinized.” After Clinton said this it was almost as if a scientific boom had occurred. NASA research teams of scientists at Johnson Space Center began to look for life as well. NASA began to send robots and Satellites to Mars. Unfortunately, they found nothing or lost contact with the robots or Satellites in the process. During the year of 1999 NASA sent up two rockets toward Mars and both were failures. Due to the failures, time has been given for scientists to blueprint a credible and step-by-step search for life on the Red Planet. Without the pressure to re .....

.... harbors and coastal villages. Consequently, the Japanese have recorded the dangers that are capable of for the past two thousand years. They have been portrayed in much of the cultural art and through the tales in their oral tradition. In its most simplified form, a tsunami can be defined as a series of waves most commonly created by violent movement of the sea floor. A tsunami is a towering ocean wave generated by tectonic displacements such as undersea earthquakes, landslides, cosmic collisions, or volcanic eruptions. There is a common misconception that a tsunami is a tidal wave. Although the impact of a tsunami on a coastline may change depending up .....

.... 15 degrees Celsius would fall to -28 degrees Celsius. The termed greenhouse effect implies that a comparable effect keeps the interior of the green house warm. Actually, the man role of the glass in a green house is to prevent convection currents from mixing cooler air outside with the warmer air inside. Although water is the most important factor in the greenhouse effect, is a major reason why human regions experience less cooling at night than do dry regions. Changes in both water and carbon dioxide play an important role in climate changes. For this reason many scientist have expressed concerns over the global increase of carbon dioxide in resent decade .....

.... include xylose, found combined as xylan in woody materials; arabinose from coniferous trees; ribose, a component of ribonucleic acids and several vitamins; and deoxyribose, a component of deoxyribonucleic acid. Among the most important aldohexoses are glucose, mannose, and galactose; fructose is a ketohexose. Several derivatives of are important. Ascorbic acid (vitamin C) is derived from glucose. Important sugar alcohols (alditols), formed by the reduction of (i.e., addition of hydrogen to) a monosaccharide, include sorbitol (glucitol) from glucose and mannitol from mannose; both are used as sweetening agents. Glycosides derived from are widespread in nature, .....

.... a large decrease in the acidity in their precipitation. The whole process of the formation of is there are several potential reactions that can affect the oxidation of sulfur in the atmosphere, everyone with a different success. The second possibility is the reaction of sulfur dioxide with the atmosphere. Here are a few equations: 1. (2So2+O2 2So3 2) So3++120 H 2So4 The second reaction takes place very quickly. Therefore, the making of So3 in the damp atmosphere is assumed to be the lead to the formation of sulfuric acid. Phase two: the aqueous phase, sulfur dioxide occurs as three species. [S {iv}] [So2{aq}]+[+1S03-] +[So32-] This process occ .....

.... classes are grouped into six crystal systems, based on the length and position of the crystal axes. Crystal axes are imaginary lines passing through the center of the crystals. Minerals in each system share certain proportions and crystal form and many important optical properties. The six crystal systems are very important to a mineralogists and geologists; specification of the system is necessary in the description of each crystal system. Isometric This system comprises crystals with three axes, all perpendicular to one another and all have equal length. Tetragonal This system comprises crystals with three axes, all perpendicular to one another; .....