Dog Has A Dark Red Tongue

What is measured? HISTORY

What is measured?
- "How hot did today! Every day is worse than the last." Says one.
- "No," replied another, "Yesterday was warmer than today"
So the conversation could continue indefinitely, it would not come to agreement. The two friends are issuing personal opinions. You need to go to an instrument (a thermometer) for temperature, as of a number and a name (the name of the unit used)
ADVANTAGE COUNT AND MEASURE
Assign a number to a set of things we can put in correspondence sets of different things. The essence of the process of measuring is that we can use numbers to find sums: 70 km, 20 kg, etc. so you can operate them. There
fundamental quantities (length, mass, time, electric current, temperature, ... From the combination of them, by algebraic relationships arise units derived, for example: (m2) square meter for measuring the surface (rad / s) Radian per second, to measure the angular velocity (N) newton to measure strength, etc. MEASURING
comparing, for example,
is easy to measure a length. Probably the first thing the man was measured by the distance between two points by counting the number of steps to traverse. That is, using the step as a unit to meet this magnitude.
But if a comparison is rigorous, be scientific, it needs to establish a unit that is invariable. Therefore, in length, the unit I am: THE METRO.
[D]

Previous Next

Howa Games To My Sidekick

big and the small

big and the small
Man measures around him according to their own dimensions, has created his own order of magnitude: a redwood, the Empire State or Jupiter are classified as large, while clover, an ant or a virus are small. If an ant who measured out, vary the order established by man.
In physics what is significant is the unit that is measured, which determines the size of the magnitud.Lo large and small are relative, it all depends on the unit employed.
But there are relationships between measures that always give the same result:
These relationships are dimensionless, for example: the number pi is a quantity that does not change its value even if the circumference size varíe.Otro example, is the solution of the hypotenuse of two isosceles triangles of different sizes, because she always appears in: √ 2

Previous Next

Yugioh Decks Homemade

The establishment of the metric system did not mean the end the other days sistemas.Hoy different units survive, thanks to strong power cultura.Así radiates, we divide the day into 12 hours day and 12 night (base 12), measured in degrees of latitude and longitude (base 60), etc.
These examples, though not decimals are commonly used throughout the world. United States despite being the first country that enacted laws (Jefferson in 1786) to force to use a base ten system for its currency, the rest measures continued to be used units conservative England in length, foot, inch, mile ..., by weight, a pound ... or able pint or gallon. Previous

Home

How Can I Get Pokemon Diamond On My Mac

History In ancient times, in the Greek world, we measured the radius of the Earth, the size Moon and its distance from Earth.
Once man learned to measure, quantitatively, could tell the succession of days and nights, the passing of the seasons, etc. and saw that every 365 days the sun rose in the same place.
Thanks to all this, today we know the mechanism of the tides, the ratio of the phases of the moon, the origin of the seasons, the foundation of the law of Gravitation, and we have developed the technology of artificial satellites and scientific observation craft.
There have been many systems for measuring length, weight and capacity as distinct peoples, usually based on anthropological dimensions: inch, foot, league, bushel, bushel, arroba, ... which varied considerably from place to place.
Each country and even each region had its own system of measurement, for example, was not the same as the yard stick to English English or French fathom. According
advancing relations between peoples was becoming necessary to establish a universal measuring system. From then until now this system has been redefined in terms of technological development and, today, is called the International System.
My birth was a milestone in relations between peoples, as was the introduction of the calendar (46 BC), the Romanesque to the birth of the concept of Europe, the computer and world of computing and communication backbone of modern society, or the Euro for European economic system.
In 1790, initiated by the French government as a result of the rationalist view of the seventeenth and eighteenth centuries, established a universal unit of length, meter, together with other units of area, volume and weight associated with it, built the first universal system to measure magnitudes in base 10 (the same that we use to write the numbers): the metric system. The most important thing is that it provides a number of decimal multiples in decimal for each unit of magnitude. Previous

Siguiente