Understanding Physics

What is the meaning of Physics?

Admin — Tue, 18 Dec 2007 02:02:26 -0800

Here are some defenitions gathered from the web to help better understand the meaning of physics...

the science of matter and energy and their interactions
http://www.cogsci.princeton.edu/cgi-bin/webwn

Physics (from the Greek, φυσικός (physikos), "natural", and φύσις (physis), "Nature") is the science of Nature in the broadest sense. Physicists study the behavior and properties of matter in a wide variety of contexts, ranging from the sub-microscopic particles from which all ordinary matter is made (particle physics) to the behavior of the material Universe as a whole (cosmology).
http://en.wikipedia.org/wiki/Physics

the study of matter and energy.
http://www.artsconnected.org/artsnetmn/spaces/vocabulary.html

Discipline of Science dealing with the properties of matter and energy. Includes; acoustics, atomic physics, cryogenics, electromagnetism, elementary particle physics, fluid dynamics, geophysics, mathematical physics, mechanics, molecular physics, nuclear physics, optics, plasma physics, quantum physics, solid state physics, statistical mechanics, thermodynamics.
http://www.embassy.org.nz/encycl/p4encyc.htm

The scientific study of matter, energy, motion, and force. (From a Greek term meaning "the science of nature.")
http://eobglossary.gsfc.nasa.gov/Library/glossary.php3

The quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter. It is measured in grams in the SI system of measurement. Note Mass and weight are often used, in a general way, as interchangeable terms, since the weight of a body is proportional to its mass (under the same or equal gravitative forces), and the mass is usually ascertained from the weight. Yet the two ideas, mass and weight, are quite distinct. Mass is the quantity of matter in a body; weight is the comparative force with
http://dictionary.new-frontier.info/Mass

The science dealing with the properties, changes, interactions, etc. of matter, and energy in which energy is considered to be continuous (classical) or discrete (quantum)
http://library.thinkquest.org/10401/vocab.html

a science that deals with matter and energy and their actions upon each other in the fields of aeronautics, electricity, heat, light, mechanics, and sound
http://whyfiles.larc.nasa.gov/text/kids/Problem_Board/problems/flight/glossary.html

"The knowledge of things, as they are in their own proper beings, their constitution, properties, and operations ..."
http://www.explore-dictionary.com/science/S/Semiotics.html

acoustics; atomic and molecular; condensed matter; elementary particle; nuclear structure; optics; plasma
http://www.nsf.gov/sbe/srs/fedfunds/pubs/dst42/technote/fields.htm

The positively charged central region of an atom, composed of protons and neutrons and containing almost all of the mass of the atom.
http://www.yourdictionary.com/ahd/n/n0188200.html

"Right now the influence of physics appears to be infinite. The products that surround us and the ones being conceived are the results of applying the laws of physics in unique and utilitarian ways. Physics has become the science of our everyday life. " - [Author]
http://edstar.ncrel.org/mn/MNGrade.asp

Quantification and measurement of physical things in order to describe relationships or laws between them.
http://www.cosmicledger.com/glossary/p.html

the horizontal component of the earth's magnetic force.
http://www.webster-dictionary.net/definition/horizontal

History of physics, Physics basic topics, Quantum mechanics ( Quantum chromodynamics), Elementary event
http://www.knowlex.org/lang/en/lexikon/Fundamental_force.html

Kennelly-Heaviside Layer, Mad scientist, Microwave, 1850 in science
http://encyclopedia.thefreedictionary.com/Oliver%20Heaviside

flux density
http://www.wordwebonline.com/en/FLUX

The physics of the Stoics was, on the whole, identical with their theology, in which the formative power that makes each thing what it is and harmonizes all things was God. The key words in the Stoic vocabulary are all basically synonymous: God, Zeus, creative fire, ether, the word (logos), reason of the world, soul of the world, law of nature, providence, destiny, and order. The Stoics were monists. There is in their physics no qualitative difference between God and the rest of the universe; God is only the most tense (cohesive) creative aspect of the universe. The stuff which
http://zork.cs.uvic.ca/quotes/stoics_encyclopedia.html

Forums is a network of science forums with an emphasis on physics help and math help. Register to post your physics questions or just hang out and talk about general science topics!
http://www.physicsforums.com/physics-glossary-T.html

The study of the properties of
http://matter.nandankanan.tripod.com/scienceterms.htm

Scientific method | Wave-particle duality | Crookes radiometer
http://encyclozine.com/James_Clerk_Maxwell

Free Downloadable Physics Presentations by Professor Clint Sprott

Admin — Tue, 18 Dec 2007 02:01:55 -0800

If you are interested in the subject of physics, and are an audio-visual learner like myself, then you are going to love these downloadable physics presentations online from The Wonders of Physics Website.

They feature over 20 presentations that are very entertaining and Professor Clint Sprott is an amazing and dynamic speaker. You will watch as he explains various ways that magicians use physics in their tricks and watch as he does magic before your very eyes!

For example, he does experiments like instantly boiling water without even heating it! Then it instantly freezes! How was he able to boil something and then turn it into ice? Well tune into his presentations and get a greater understanding of physics!

If you have the Windows Media Player 9 or later installed, you can videostream the shows directly to your computer for free by clicking the following links:

         Tape 1: 2/11/86 54:33 Classical Physics
         Tape 2: 6/03/86 51:35 Classical Physics
         Tape 3: 2/15/87 58:46 Classical Physics
         Tape 4: 2/21/88 58:46 Classical Physics
         Tape 5: 6/24/88 28:46 Wonders of Sound
         Tape 6: 2/19/89 58:46 Classical Physics
         Tape 7: 2/18/90 58:46 Chaos and Randomness
         Tape 8: 2/17/91 58:58 Modern Physics
         Tape 9: 2/23/92 58:46 Physics of the Weather
         Tape 10: 2/21/93 58:46 Tenth Season Celebration
         Tape 11: 2/20/94 57:15 Physics of the Body
         Tape 12: 2/19/95 57:30 Physics of Energy
         Tape 13: 2/18/96 58:15 Classical Physics
         Tape 14: 2/16/97 55:23 Physics of Flying
         Tape 15: 2/15/98 58:43 Fifteenth Season Celebration
         Tape 16: 2/21/99 59:06 Physics of the Late 1800s
         Tape 17: 2/20/00 57:59 Physics of the New Millennium
         Tape 18: 2/18/01 56:15 Physics of the 21st Century
         Tape 19: 2/17/02 57:26 Physics of Transportation
         Tape 20: 2/16/03 57:51 Twentieth Season Celebration
         Tape 21: 2/15/04 58:20 States of Matter
         Tape 22: 2/20/05 58:44 World Year of Physics

Enjoy!

Physicists have used nuclear magnetic resonance to investigate the destructive effects of the crystallization of salt

Admin — Tue, 12 Jul 2005 22:15:43 -0700

Salt-weathering is one of the main causes of rock disintegration in nature, particularly in deserts, polar regions and along coastlines. However, it is also a very widespread cause of damage to man-made constructions. Bridges, for example, are attacked by de-icing salts, and cities such as Bahrain, Abu Dhabi and Adelaide are affected by rising damp from high ground-water levels. Indeed, many examples of cultural heritage, including the Islamic sites of Bokhara and Petra in Jordan and the Sphinx in Egypt, may ultimately be destroyed due to the effects of salt-weathering.

Now Lourens Rijniers and colleagues at Eindhoven University in the Netherlands have developed a way to observe the solubility of various salts inside porous materials directly (Phys. Rev. Lett. 94 075503).

To read the full version of this article - and the rest of the May issue of Physics World - please subscribe to their print edition.