The U. In , Congress authorized the use of the metric system in this country and supplied each state with a set of metric weights and volumetric measures. In , the Metric Conversion Act was passed in the U. Other countries such as Japan, Britain and Germany were shipping products all over the world. It was difficult for the U. Congress knew we had to change to the international standards for trade. In , a trade act was adopted that made the metric system the preferred system of measurement for trade and commerce.
It also required that all Federal agencies do business using the metric system. This did not do away with the U. Customary System, but it did make metric equally important. Although you may not realize it, you deal with metrics every day. A two liter bottle of soda pop is common in our grocery stores. International sporting events such as track and field and swimming races measure distance in meters. Remember reading about the gram? This measurement is used in most laboratories and in the medical field.
You can also see it on packaged products we purchase in grocery and other retail stores. Browsers that can not handle javascript will not be able to access some features of this site. Yet scientists must have some unit of time to use as a standard, and, for this purpose, the second was chosen as the most practical. The SI definition of a second, however, is not simply one-sixtieth of a minute or anything else so strongly influenced by the variation of Earth's movement.
Instead, the scientific community chose as its standard the atomic vibration of a particular isotope of the metal cesium, cesium The vibration of this atom is presumed to be unvarying, because the properties of elements—unlike the size of Earth or its movement—do not change. Today, a second is defined as the amount of time it takes for a cesium atom to vibrate 9,,, times.
Expressed in scientific notation, with significant figures, this is 9. Gardner, Robert. Science Projects About Methods of Measuring. Berkeley Heights, N.
Long, Lynette. New York: Wiley, MegaConverter 2 Web site. Patilla, Peter. Richards, Jon. Units and Measurements. Sammis, Fran. New York: Benchmark Books, Units of Measurement Web site. Toggle navigation. Photo by: Alessio Cola. SI vs. Also read article about Measurement from Wikipedia.
User Contributions: 1. How can you make real life application of measurements. For example. A long school ruler is 30cm or 12 inches. I want to know the real life application of an acre, hectare, millimeter, meter and so on. Pls help? Jennifer walker. I thought standardization to science was interesting. It said if a nurse put what seemed to be enough medication instead of actually knowing what was enough could be very bad.
So that's why any chemist or any scientist needs standardized vocabulary to let them know how much of something they need. Sherida dawson. I learned that chemistry is used much more in the world than I thought. Also that metric is the most commonly used in the world. Also that it would be beneficial for America to switch never to metric. Standardization to science was interesting.
Any chemist or scienstist or biologist needs this to make their life easier. I have learned that the units of measurements are used just about every day! I learned that the units of measurement are used on the daily and the periodic table is very helpful when experimenting in chemistry. It will help young chaps to learn on measurements and good explanation. It would be more better if you give some real life experiences more so that the students will be able to relate it with their day-to-day life.
Romana Emy Lizette S. Measurement is really import to our life because without measurement we can't measure our things in our house. And also we can't measure our condiments that need in our daily life. Jesa Gabriel. I love reading your articles. I want to ask if how can we apply SI units in real life situations.
Metrication, metric transition, metric conversion, or metrication are terms used to describe moving from use of local, traditional, or customary units of measure to the SI. Metric transition started shortly after the Metric Conversion Law was enacted. Department of Treasury. Distilled Spirits and Wines have been successfully sold exclusively and accepted by U.
To learn more, explore the answers to commonly asked questions about metrication. Since that time, the SI has become more prevalent in U.
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