The History Of Physics

The History Of Physics

Since antiquity, people have tried to understand the nature of the objects: why not supported objects fall to the ground, why different materials have different properties, and so on. The other is the nature of the universe, such as the shape of the Earth and celestial objects such as the nature of the Sun and the moon.

Several theories proposed and many wrong. The theory depends a lot of philosophy, and was never ascertained by systematic experiments as popular nowadays. There are exceptions: for example, anachronism and thinker Archimedes Greece lose many quantitative description right from the mechanical and hydrostatic.

historical physicists

In the early 17th century, Galileo opens up the use of experiments to ascertain the truth of the theory of physics, which is the key of the method of science. Galileo formulated and successfully tested several results from mechanical dynamics, especially Law Inert. In 1687, Isaac Newton's Mathematical principles of Natural Philosophy published, provide a clear explanation and a successful physics theories: Newton's law of motion, which is a source of classical mechanics; and the law of Gravitation, which describes the fundamental forces of gravity. This theory fits in both experiments. Prinsipia also incorporate some theory in fluid dynamics. Classical mechanics developed heavily by Joseph-Louis de Lagrange, William Rowan Hamilton, and others, who created the formula, principles, and new results. Legal Gravitas start Astrophysics, describing astronomical phenomena using the theory of physics.

From the 18th century onward, thermodynamics was developed by Robert Boyle, Thomas Young, and many others. In 1733, Daniel Bernoulli used statistical arguments in classical mechanics to derive thermodynamic results, started the field of statistical mechanics. In 1798, Thompson demonstrated the conversion of heat into mechanical work, and in 1847 James Joule stated the law of conservation of energy, in the form of mechanical energy in panasa.

The nature of electricity and magnetism are studied by Michael Faraday, Georg Ohm and others. In 1855, James Clerk Maxwell unifies the two phenomena into one theory of electromagnetism, described by Maxwell's equations. Estimates of this theory is the light is electromagnetic waves.

Nature of science and Science Education in primary school

Nature of science and Science Education in primary school

Natural Sciences (IPA) or science in the sense described above is a narrow discipline consisting of physical sciences (physical sciences) and life sciences (Biological Sciences). That includes the physical sciences are Sciences of astronomy, chemistry, geology, [[mineralogy]], meteorology, and physics, while the life science includes Anatomy, Physiology, zoology, microbiology, embryology, citologi.

IPA (Sci) attempt to generate interest to enhance human intelligence and his understanding of nature with all its contents is full of secrets that are inexhaustible. With the secret veil of natural tersingkapnya it one by one, as well as flowing out of the information it generates, the more extensive coverage of science and the birth of terapannya, i.e., the technology is wide. But from the time that the longer the distance the more narrow, so that the slogan "Science these days is the technology of tomorrow" is a motto many times proven by history. Even now the integral science and technology into the culture of science and technology co-exist (complimentary), like currencies, i.e. one side contains the very essence of Science (the nature of Science) and the other side contains the meaning of technology (the meaning of technology).

IPA discusses the symptoms of nature are organized systematically based on the results of experiments and observations made by humans. It is as expressed by Powler (in Vienna-son, 1992: 125) that IPA is the science that deals with the symptoms and nature of the material that is systematically arranged on a regular basis, generally in the form of a collection of obervasi and experimental results.

Understanding the nature of science

Understanding the nature of science

Natural science or science (science) is derived from the latin word Scientia meaning literally that is knowledge, but then evolved into a special natural science or science. Sund Trowbribge and formulate that science is a collection of knowledge and process.

Whereas Kuslan Stone mentions that Science is a collection of knowledge and the means to obtain and make use of that knowledge. Science is a product and a process can not be separated. "Real Science is both product and process, inseparably Joint" (Agus. S. 2003: 11)

Science as a process of steps taken scientists to conduct an inquiry in order to seek an explanation of the nature of the symptoms. The step is to formulate the problem, formulate a hypothesis, designing experiments, collect data, analyse and end concluded. From here it appears that the fundamental characteristics of Science is the quantification of natural phenomena that may take the form of quantity.

Definition of optics

Know more on optics

Optics is the branch of physics that describes the behavior and properties of light and the interaction of light with matter. Optics explains optical phenomena and colored by. The word optics comes from the Latin ὀπτική, which means the display.

Optics usually describes the nature of the visible light, infrared and ultraviolet; but because the light is electromagnetic waves, the same symptoms also occur in x-rays, microwaves, radio waves and other forms of electromagnetic radiation and similar symptoms as well as in the spotlight of the particle charge (charged beam). Optics in General can be considered to be part of keelektromagnetan. Some optical phenomena depend on the quantum properties of light associated with some optics to quantum mechanics. In practice, most of the optical phenomena can be calculated by using the electromagnetic nature of light, as described by Maxwell's equations.

Optics have identity, community, and the Conference itself. Aspects of science are often called optical science or optical physics. Applied Optical Sciences are often called optical engineering. Application of optical engineering which related specifically to the illumination system (illumination) is called a lighting engineering. Each discipline tends to be a little different in application, technical skills, focus, and professional affiliation. More recent innovations in optical engineering is often categorized as fotonika or optoelektronika. The boundaries between these fields and the "optics" are often not clear, and the term is used differently in different parts of the world and in various fields of industry.

Because of the wide application of the science of "light" for real-world application, the fields of optics and optical engineering tends to be highly interdisciplinary.

The science of Optics is part of a range of related disciplines including electrical engineering, physics, psychology, medicine (particularly Ophthalmology and optometry), and others. In addition, the most complete explanation about the behavior, as described in optical physics, not necessarily complicated for most problems, so a simple model can be used. This simple Model is sufficient to explain most optical phenomena as well as ignoring irrelevant behavior and/or is not detected on a system.

Understanding Measurement tools measure length, mass, and time

Understanding Measurement tools measure length, mass, and time

The measurement is the activity of comparing a quantity being measured using similar quantities to be used as the unit of measurement of the magnitude of the derivative, can be measured in two ways, directly and indirectly. Direct measurement of the measurement result is obtained directly, whereas indirect measurement is a measurement result note after calculate using the formula that corresponds to observation data.

THERE ARE SOME TOOLS MEASURE LENGTH ARE:

1. SLIDE RULE

2. CALIPER

3. SCREW MICROMETERS

MASS MEASUREMENT TOOL:

1. BALANCE of SITTING

2. BALANCE SHEET by ELECTRONIC GROUP

3. the BALANCE ARM

MEASURING TIME:

1. the STOPWACH

2. WATCHES

3. WALL CLOCK

** Basic Magnitudes is a unit of quantity has been defined in advance **

TERMS OF THE UNITS OF THE GOOD:

1. INTERNATIONALLY

2. the UNITS ALWAYS REMAIN

3. EASILY IMITATED and CAN BE REPRODUCED

*** Temperature is a measure of the degree of heat or cold an object **

*** A tool to measure the temperature of objects with precise and expressed with a number called a thermometer **Understanding Measurement tools measure length, mass, and time

The measurement is the activity of comparing a quantity being measured using similar quantities to be used as the unit of measurement of the magnitude of the derivative, can be measured in two ways, directly and indirectly. Direct measurement of the measurement result is obtained directly, whereas indirect measurement is a measurement result note after calculate using the formula that corresponds to observation data.

THERE ARE SOME TOOLS MEASURE LENGTH ARE:

1. SLIDE RULE

2. CALIPER

3. SCREW MICROMETERS

MASS MEASUREMENT TOOL:

1. BALANCE of SITTING

2. BALANCE SHEET by ELECTRONIC GROUP

3. the BALANCE ARM

MEASURING TIME:

1. the STOPWACH

2. WATCHES

3. WALL CLOCK

** Basic Magnitudes is a unit of quantity has been defined in advance **

TERMS OF THE UNITS OF THE GOOD:

1. INTERNATIONALLY

2. the UNITS ALWAYS REMAIN

3. EASILY IMITATED and CAN BE REPRODUCED

*** Temperature is a measure of the degree of heat or cold an object **

*** A tool to measure the temperature of objects with precise and expressed with a number called a thermometer **