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Physics. What is the Holographic Principle? Nuclear Power Plant Simulator Game. Forces. The Particle Adventure. GCSE Bitesize: The structure of an atom. The Physics Classroom. Early Atomic Models - Science. Newton Physics - Links to Papers, books and web sites. Amusement Park Physics. Design a Roller Coaster Try your hand at designing your own roller coaster.

Amusement Park Physics

You will be building a conceptual coaster using the physics concepts that are used to design real coasters. List of unsolved problems in physics. Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.

List of unsolved problems in physics

The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail. Unsolved problems by subfield[edit] The following is a list of unsolved problems grouped into broad area of physics.[1] Cosmology, and general relativity[edit] Cosmic inflation. Vicphysics. 10 Strange Things About The Universe. Space The universe can be a very strange place.

10 Strange Things About The Universe

While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around. Theoretically, the lowest temperature that can be achieved is absolute zero, exactly ?

273.15°C, where the motion of all particles stops completely. However, you can never actually cool something to this temperature because, in quantum mechanics, every particle has a minimum energy, called “zero-point energy,” which you cannot get below. SMART Menü. Einstein's General Theory of Relativity. Ywhscience. How to turn darkness into light. Quantum mechanics tells us that the vacuum is not empty but is filled with virtual particles that pop into and out of existence.

How to turn darkness into light

Normally these particles are hidden from our view, but now a team of physicists has used the electrical equivalent of an ultrafast mirror to convert virtual photons into real electromagnetic radiation. Known as the dynamical Casimir effect, it was first predicted more than 40 years ago. The static Casimir effect, put forward by Dutch physicist Hendrik Casimir in 1948, involves two perfectly reflecting parallel mirrors that, when placed in a vacuum, will be attracted to one another. Particle Data Group. Names Proposed for New Elements on Periodic Table. The International Union of Pure and Applied Chemistry — the scientific body that is the keeper of the list of elements — unveiled Thursday the proposed names for elements 114 and 116: flerovium (atomic symbol Fl) and livermorium (atomic symbol Lv).

Names Proposed for New Elements on Periodic Table

If you do not like them, now is the time to voice your objections. The chemistry union will have a five-month comment period open to anyone. “We believe we have to let the world respond,” said Terry A. Renner, the chemistry union’s executive director. EDU'bases physique-chimie.

Médiathèque - Dossiers. Le système solaire. Animations SVT Physique Chimie eduMedia. Physique-chimie : 5 animations interactives. Animations - Simulations. PCCL - Physique Chimie au Collège et au Lycée : soutien scolaire en animations pédagogiques flash de cours et exercices corrigés de sciences physiques. Tutoriels vidéo pour les débutants en flash adobe. Physics and Chemistry at the Academy and High School.

France. L’électricité de A à Z – cours complet ! PCCL - Physique Chimie au Collège et au Lycée : soutien scolaire en animations pédagogiques flash de cours et exercices corrigés de sciences physiques. cinquieme - quatrieme - troisieme - seconde - premiere - terminale - 5e 4e 3e 2e 1S TS jusqu'au baccala. PhET: simulations gratuites (maths et sciences) Physicists chip away at mystery of antimatter imbalance. ( -- Why there is stuff in the universe—more properly, why there is an imbalance between matter and antimatter—is one of the long-standing mysteries of cosmology.

Physicists chip away at mystery of antimatter imbalance

A team of researchers working at the National Institute of Standards and Technology has just concluded a 10-year-long study of the fate of neutrons in an attempt to resolve the question, the most sensitive such measurement ever made. The universe, they concede, has managed to keep its secret for the time being, but they’ve succeeded in significantly narrowing the number of possible answers. Though the word itself evokes science fiction, antimatter is an ordinary—if highly uncommon—material that cosmologists believe once made up almost exactly half of the substance of the universe. Creating Quantum Matter. By Marlene Cimons, National Science Foundation.

Creating Quantum Matter

Europhysics News. 3 New Heavy Elements Named: Darmstadtium, Roentgenium, Copernicium. 5000 free math, physics, and engineering video tutorials and lectures. Here are the collections of sites with math, physics, engineering, and other sciences video tutorials.

5000 free math, physics, and engineering video tutorials and lectures

Some sites also contains non-science videos as well. If you find a site with more than 50 videos, please inform me so I could include it on the list. Khan Academy – more than 2100 2600 not only for math but also includes other subjects such as economics, chemistry, physics and other fields. The math videos range from adding integers up to elementary calculus. Brightstorm - more than 500 math videos in algebra, geometry, Precaculus and Calculus.Just Math Tutorials – more than 1000 videos on algebra, geometry, trigonometry, calculus, differential equations, and linear algebraMIT Open Courseware – videos about math, engineering, sciences, and other fields.Free Video Lectures – more than 700 (excluding Khan Academy’s which they also listed) videos. Black hole binge could test general relativity - space - 03 May 2013. Physics Simulation with Java.

Physics I: Classical Mechanics. Interesantes Gifs y Imágenes raros. MinutePhysics. HyperPhysics Concepts. 7 Man-Made Substances that Laugh in the Face of Physics. Odds are pretty good that some of you are reading this on an LCD screen while the rest of us are trying to make it out on the 13-inch monochrome monitor that came with our garage sale Commodore 64.

7 Man-Made Substances that Laugh in the Face of Physics

But even with the LCD, some laptops still weigh over 10-pounds. And while that doesn't seem like much, the level of muscle atrophy experienced by the average Warcraft addict makes that weight a thousand times heavier. However, elastic conductors could fix that and make smuggling your porn collection into church even easier. Physik-Forum. Interactive 3D model of Solar System Planets and Night Sky. How Far is it to Mars? Atom. Atoms are small enough that attempting to predict their behavior using classical physics – as if they were billiard balls, for example – gives noticeably incorrect predictions due to quantum effects.


Through the development of physics, atomic models have incorporated quantum principles to better explain and predict this behavior. Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons. Protons and neutrons are called nucleons. More than 99.94% of an atom's mass is in the nucleus.

The electrons of an atom are attracted to the protons in an atomic nucleus by this electromagnetic force. The number of protons in the nucleus defines to what chemical element the atom belongs: for example, all copper atoms contain 29 protons. History of atomic theory Atoms in philosophy.