Some time ago, Valve had the only popular physics engine, and used it for their Half-Life 2 series. Now, several years have passed and there are some mass physics engines that can compete with it, and are even better. One example is the Crysis physics engine! Very cool! Enjoy!

Here are some cool tricks you can do at home with a gas that is denser than air. Pretty cool, especially after inhaling it!

A funny accident compilation. You just can't get enough of this stuff, can you? I know I don't! Enjoy!!!

A very funny video taken from Futurama. It's a little bit nerdy, 'cause it's for a connoisseur of quantum physics, namely The Heisenberg Uncertainty Principle. If you don't get it, check out the wiki page for it! Enjoy!

Well, this guy didn't learn physics in high-school for sure, because he'd know that for every action, there's an equal reaction. Don't believe me, see for yourself what happens to this arab guy, when he tries to shoot that rifle!

In physics mass matters most. This is why a 2.5 ton Audi Q7 obliterates a 1.2 ton Fiat 500. Also, the height difference plays an important role too, because of the position of the crumple zones. Anyway, there should be some kind of legislation to make cars "compatible" between each-other on impacts

Here's a lessson in physics and one in "knowing when to stop" all bundled into one video. The teacher for this lesson is a lucky but somewhat stupid young man. Enjoy!

Here's a guy thinking he can defy the rules of physics, by jumping off the roof in roller skates and not get hurt. Can you get what happens next?

Here's an extremely realistic water simulation (the most accurate I've seen so far actually) which will take gaming into a new age of realism. You'll probably need a physics acceleration card for it, but with that kind of realism, who cares?

In the string theory and the super string theory physicists talk about the tenth dimension, and even the eleventh dimension, but how can that be? Well in this video clip explains what the tenth dimension is, and how the eleventh dimension could be theorized. I found it, very interesting, and extremely well done. The tenth dimension and eleventh dimension are the next big thing in physics, and sound very promising for the future of man kind! Hope you'll enjoy this fun physics lesson as much as I did

An awesome video of a sound resonance experiment. By raising the wavelength of the sound beautiful patterns (and more complex) appear in the powder. Just another demonstration that physics can be beautiful Also check out this Fire Spectroscope Video. It's also awesome.

Slow motion imagery helps us understand the physics of things around us, and also makes for some incredible footage. For example, who knew what a small water drop does when it hits water? It's fantastic! Enjoy!

Here's a bunch of hilarious pics that made me giggle. Click on "Full story" for more pictures!

The new devices can operate at 30 degrees above zero, rather than less than 70. This is the characteristic of the new generation of semiconductors, researched at the Italian Institute for the Physics of Matter (INFM-CNR), and in the Ludwig Maximilian University in Monaco of Bavaria and the ETH Zurich (the study). Today there are two ways to record information on a medium: the electronic format, in which the binary language is the passage of electrons (the transistors) and magnetic (MRAM memory), more recently, in which the binary language is given by state of magnetization. To communicate these two systems could boost significantly the computational schemes, pending the distant quantum computer. Doubling the processing power and memory of a chip while maintaining the size, without the need to go in nano-scale (a scale, that is, a billionth of a meter) are just two of the technology that promises magnetic semiconductors suggest a near future. These devices were made over ten years ago, but so far required temperatures far below zero to work. The problem now seems outdated as the known semiconductors gallium arsenide containing traces of manganese, a metal which has ferromagnetic properties at around 200 degrees below zero. To increase the temperature threshold, above which the ferromagnetic behavior disappears, the researchers deposited on a semiconductor film of iron - metal known for its magnetic properties - the thickness of a few nanometers. Iron and manganese interacted so effectively that the new material, has a ferromagnetic behavior up to 30 degrees above zero, a jump of over a hundred degrees above the starting temperature. This result is a technological response parallel to that of the race to miniaturization and the research was selected the American Physical Society as one of the most important published in Physical Review Letters

A new instrument to simultaneously measure the magnetic field and the atomic structure of matter at the nanoscale has been developed. The applications of this are future generations of high-density memories Snapshots of the weakest and microscopic magnetic fields generated by just a few molecules of a nanometer (billionth of a meter). The researchers have obtained the S3 Center of the National Institute for the Physics of Matter (INFM-CNR) of Modena and the University of Modena . This is a scanning microscope combined with a new highly sensitive magnetic sensor. The microscope scans close with his point - made up of a few atoms - the area of the test and how it relates to the roughness with a resolution of several nanometers. Beside the point, the sensor records the magnetic field intensity, but with high detail ( millionth of a meter). In this way the researchers were able to get together for the first time, images of atomic structure and magnetic properties of a thin layer of nano-magnet on a support of silicon. "The microscope allows us to measure directly the properties of nano-molecular magnets on the surface, even at temperatures close to absolute zero, to minus 270 degrees," says Marco. "Above all," says the researcher, "it helps us to understand the magnetism on the molecular scale."

The switch that turns off and on to command the superconducting property of the new device is a trivial electric field. In practice, what has been done by Andrea Ankle and colleagues at the University of Geneva in the first superconducting transistors. The operation, represents a milestone of applied physics and paves the way for the development of a new generation of microchips - and therefore computers - much faster than at present. To understand how and why the device is considered so promising it must be from another discovery, made last year by the same group of university research in Switzerland and published in Science. In one study, physicists have created a single crystal in which two metal oxides (strontium titanate and lanthanum aluminate) are separated. Between these two materials, researchers have found a layer of free electrons (electronic cloud) and 0.3 Kelvin - that is just above absolute zero - traveling without any resistance. At that temperature, the crystal becomes a superconductor. Scientists have now discovered how to turn off and turn on the superconductivity of this crystal at will, or modules, simply by applying an electric field to the point of contact between the two oxides. The result is a version of superconductive field effect transistors (FET) devices known in applied physics, able to switch from one state to a semiconductor insulator, and basic digital information in electronics (the fact that the current can pass or not is used as a binary 1-0 to store information). As the field effect transistors is a semiconductor, however, it always has resistance to the passage of current. This means that the speed at which you can get the electrons when the device is "on" is limited which means heat develops beyond a certain limit. This side effect is damaging the transistor. A superconducting transistor, however, can pass electrons (and record information) much more quickly, as it does not oppose any resistance to the passage of current and, therefore, not heat. There remains the problem of extremely low temperatures required for superconductivity. A limit that research is a long time trying to overcome.

Particles in a confined microscopic space, move in a coordinated manner and can be manipulated and observed with a precision never achieved. A nano-trap can be imagined as a tube the size of a billionth of a meter in which electrons are closed to study their behavior. Thus, scientists from the centers of the Italian Institute for physics of matter of Cnr "S3", Modena and "Nest" of Pisa in collaboration with Columbia University in New York, were able to observe with great precision the behavior of a quartet of electrons confined in one of these structures. Result: the particles move in a coordinated manner and with precise frequencies and can be manipulated. The study was published in Nature Phisics. As it is known, the physics of the matter the size of an atom or less follows different laws than those of classical physics. According to these principles, which fall in quantum physics, the behavior of particles such as electrons can not be described as we are used to (for larger bjects),but it is outlined mainly in terms of probabilistic forecasts. The technique developed by Cnr made it possible to determine the frequency of vibrations of particles through the use of a beam of laser light. The electrons in a nano-trap can only move in a coordinated manner and in accordance with the laws of quantum mechanics, vibrate at frequencies well defined that, thanks to this method, was possible to measure with unprecedented precision.

For the first time there was a negative charge exactly equal to 25 percent of that unit. Research in Nature magazine. Since the electricity comes from the transport of electrons, it is logical to expect that the smallest load that can be transported is equal to the charge of a single electron. Under specific conditions, it is possible to observe portions of this fundamental unit. Even in these conditions, however, there have been observed only odd fractions of charge: third, fifth, seventh. In the last issue of Nature it was published the existence of a quasi-particle with a charge corresponding exactly a quarter of that of an electron. In particular, these unique elementary particles, which have been precisely called "quasi-particles" to their particular nature, are formed when electrons are confined in a two-dimensional system, which forces them to interact strongly with each other. It is known that when a flow of electrons is confined in a two-dimensional plan of a semiconductor and it is applied simultaneously in a strong magnetic field perpendicular to this plane, the electrons have unusual quantum properties. In a research just published in Nature, in an electron gas, two-dimensional and ultra-pure, were detected within the fluid vortexes charges carrying exactly one quarter of the charge of an electron.

No more black and white images: a new electronic tool will observe the chemical species to the wavelengths of visible The color images provided by an ordinary microscope can not make a resolution at the level of individual atoms, while the electronic microscopes, capable of atomic resolution, providing black and white images. In these images different atoms appear as different shades of grey. Now, an electron microscope of a new generation, recently designed and installed at Cornell University and the subject of a study published in Science, will obtain color images at atomic resolution.