Edurete.org

Newton's law of cooling
We have examined the behaviour of two simple differential equations so far, one for population growth, and one for the radioactive decay of a substance. The methods we have developed are actually useful for many other interesting problems, and can help us to make predictions about other systems that, at first sight, do not seem at all related. We will find that the common thread in all these systems is the simple differential equation of the form
Segnalato da: Gianfranco Bottini
14-19 anni
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http://www.ugrad.math.ubc.ca/coursedoc/math100/notes/diffeqs/cool.html

Newton's law of universal gravitation
Isaac Newton's theory of universal gravitation is a physical law describing the gravitational attraction between bodies with mass. It is a part of classical mechanics and was first formulated in Newton's work Philosophiae Naturalis Principia Mathematica, published in 1687.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://en.wikipedia.org/wiki/Newton%27s_law_of_universal_gravitation

Newton's laws of motion
Newton's laws of motion are three physical laws which provide relationships between the forces acting on a body and the motion of the body. They were first compiled by Sir Isaac Newton in his work Philosophiae Naturalis Principia Mathematica (1687). The laws form the basis for classical mechanics and Newton himself used them to explain many results concerning the motion of physical objects. In the third volume of the text, Newton showed that these laws of motion, combined with his law of universal gravitation, explained Kepler's laws of planetary motion.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion

Newton's Laws of Motion
A fundamental concept in dynamics is the dynamical system. Since dynamics is the study of motion and forces , things that move or things under the influence of forces or both are called dynamical systems.
Segnalato da: Luisa Demonte Barbera
19 anni in poi
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http://www.mcanv.com/p1nlm.html

Newton's Optical Papers
In the mid-1660s, Newton became so fascinated by the nature of light and vision that he seriously risked blinding himself by staring at the sun, and by poking the sides of his eyeball with a 'bodkin' (i.e. a small knife), in order to assess how such activities would affect his sight. These experiments, together with a number of rather more sensible ones, led him to formulate revolutionary theories about the nature of the spectrum and the refraction of light.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://www.newtonproject.sussex.ac.uk/prism.php?id=47

Newton's Philosophiae Naturalis Principia Mathematica
No work of science has drawn more attention from philosophers than Newton's Principia. The reasons for this, however, and consequently the focus of the attention have changed significantly from one century to the next.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://plato.stanford.edu/entries/newton-principia/

Newton's Second Law
A short section, recapitulating earlier ideas of force and inertia (also known as mass). It summarizes Newton's laws, defines the unit of force known as "Newton," and gives as a practical application of the second law the acceleration of the German V-2 rocket, used in World War II.
Segnalato da: Giovanni Bertolo
14-19 anni
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http://www-istp.gsfc.nasa.gov/stargaze/Snewt2nd.htm

Newton's Three Laws of motion
Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his Three Laws of Motion.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html

Nuclear Physics
Physics Zone Lessons on Nuclear Physics
Segnalato da: Frangipane Davide
19 anni in poi
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http://www.sciencejoywagon.com/physicszone/lesson/12nuclear.htm

Operational and Derived Quantities
There are only a few fundamental units from which the units of all physical quantities in science can be expressed.
The fundamental units are defined by a measuring process.
Derived physical quantities (which are the majority of quantities) are defined by a mathematical expression involving either the fundamental quantities or other derived quantities.
Segnalato da: Sabrina Pastorelli
19 anni in poi
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http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/ModelsInScience/Units/UnitsInScience.html

Opticks
Opticks is a book written by English physicist Isaac Newton that was released to the public in 1704. It is about optics and the refraction of light, and is considered one of the great works of science in history. Opticks was Newton's second major book on physical science. Even if he had not made his better-known discoveries concerning gravity and the invention of the calculus, Opticks would have given him the reputation as one of the greatest scientists of his time.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://en.wikipedia.org/wiki/Opticks

Opticks
Opticks (o “Un tratado de las reflecciones, refracciones, inflecciones y colores de la luz”) es el resumen de fragmentos del Libro Primero, Segundo y Tercero de Óptica de Isaac Newton. El libro comienza con una pequeña introducción en donde nos explica someramente el contenido del tratado y probará propiedades de la luz con métodos experimentales.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://es.wikipedia.org/wiki/Opticks

Orbite
Page de wikipédia, l'encyclopedie libre:
1 Éléments orbitaux
2 Périodes
3 Relations entre les anomalies et les rayons
4 Les différents types d'orbite

Segnalato da: Giovanni Bertolo
14-19 anni
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http://fr.wikipedia.org/wiki/Orbite

Orbite intorno a un buco nero
Un corpo in orbita intorno a un buco nero non segue la legge di gravitazione universale ma le leggi della relativita'. Questo applet mostra l'orbita seguita
Segnalato da: Frangipane Davide
19 anni in poi
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http://www.ba.infn.it/~zito/museo/frame52.html

Orbite secondo Newton
Nel gennaio 1684 l’astronomo Edmond Halley, dal quale prende il nome la famosa cometa, riceve una sfida da quaranta scellini: dimostrare entro due mesi l’espressione matematica della forza con cui il Sole attrae i pianeti.
Nell’agosto, persa la sfida per decorrenza dei termini, Halley la gira all’oscuro matematico Isaac Newton, che gli dà una risposta sospetta: aveva già pensato al problema tempo prima, ma non ricorda dove ha messo la soluzione.
Segnalato da: Gianfranco Bottini
14-19 anni
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http://lgxserver.uniba.it/lei/rassegna/010117.htm

Orbites
Définition de "orbite" dans le site de "Les lanceurs spatiaux dans le monde" dans la section "satellites".

Segnalato da: Giovanni Bertolo
14-19 anni
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http://users.skynet.be/Yantar/orbites.htm

Orbits in Strongly Curved Spacetime
Kepler's laws of planetary motion, grounded in Newton's theory of gravity, state that the orbit of a test particle around a massive object is an ellipse with one focus at the centre of the massive object. But when gravitational fields are strong, as is the case for collapsed objects like neutron stars and black holes, Newton's theory is inaccurate; calculations must be done using Einstein's theory of General Relativity.
Segnalato da: Frangipane Davide
Più fasce di età
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http://www.fourmilab.ch/gravitation/orbits/

Ordenes de magnitudes de la longitud
Tabla que contiene las unidades para medir la longitud.
Segnalato da: Luisa Gibello
19 anni in poi
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http://es.wikipedia.org/wiki/Longitud

Order of magnitude
An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. The ratio most commonly used is 10.
Orders of magnitude are generally used to make very approximate comparisons.

Segnalato da: Luisa Gibello
19 anni in poi
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http://en.wikipedia.org/wiki/Order_of_magnitude

Ordini di grandezza della lunghezza
Tabella riportante gli ordini di grandezza della lunghezza.
Segnalato da: Luisa Gibello
19 anni in poi
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http://it.wikipedia.org/wiki/Ordini_di_grandezza_%28lunghezza%29

Ordre de grandeur
Un ordre de grandeur permet une représentation simplifiée et synthétique d'une grandeur physique. Ils sont pratiques pour communiquer sur des grandeurs de l'infiniment grand ou de l'infiniment petit.
Segnalato da: Luisa Gibello
19 anni in poi
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http://fr.wikipedia.org/wiki/Ordre_de_grandeur

Ordre de grandeur du temps
Cet article présente une comparaison des ordres de grandeur de temps.
Segnalato da: Luisa Gibello
19 anni in poi
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http://fr.wikipedia.org/wiki/Ordre_de_grandeur_(temps)

OSCILLATIONS
Les phénomènes périodiques.
Les oscillations harmoniques.
Segnalato da: Luisa Demonte Barbera
19 anni in poi
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http://www.ambafrance-ma.org/archives/marocweb/projet08/oscilla1.htm

Pagina personale del prof. Franz Joseph Elmer dell'università di Basilea
Pagina personale del prof. Franz Joseph Elmer dell'università di Basilea, svizzera. Fra le altre cose tutto quello che volete sapere sul pendolo. Con applet interessanti, veloci a caricarsi e con un adeguato supporto teorico.

Segnalato da: Frangipane Davide
19 anni in poi
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http://monet.physik.unibas.ch/~elmer/

particleadventure.
The particle data group of Lawrence Berkeley National Laboratory presents an award-winning interactive tour of quarks, neurinos, antimatter, extra dimensions, dark matter, accellerators and particle detectors.
Segnalato da: Sugliano Daniele
Più fasce di età
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http://particleadventure.org/particleadventure/

Particles Diffusion Java Applet
Sito personale di un cultore di scienza e java, sono presenti due applet, una sulla diffusione e una sul moto browniano.

Segnalato da: Frangipane Davide
19 anni in poi
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http://www.geocities.com/piratord/browni/Difus.html

passaggi di stato
passaggi di stato
Segnalato da: iolanda perugini
Più fasce di età
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http://www.batsweb.org/Scienza/Chimica/ChemBook/Stati/passaggi.pdf

passaggi di stato
passaggi
Segnalato da: iolanda perugini
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http://www.biotecnologie.unige.it/capitolo14.pdf

passaggi di stato
approfondimento su calore di evaporazione e calore di fusione
Segnalato da: Stroppiana Alessia
11-14 anni
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http://www.progettotrio.it/eduscienze/upload/1/des_pass.htm

passaggi di stato
passaggi di stast
Segnalato da: iolanda perugini
Più fasce di età
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http://www.ed-lascuola.it/cartasaperi/scienze/3/passaggi.htm

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