A Slower Speed of Light. Download the latest beta releases A Slower Speed of Light is a first-person game prototype in which players navigate a 3D space while picking up orbs that reduce the speed of light in increments. Custom-built, open-source relativistic graphics code allows the speed of light in the game to approach the player’s own maximum walking speed. Visual effects of special relativity gradually become apparent to the player, increasing the challenge of gameplay. Download our PowerPoint presentation about the relativistic effects in the game: PPT PPTX OpenRelativity A Slower Speed of Light was created using OpenRelativity, an open-source toolkit for the Unity game development environment. Requirements A Slower Speed of Light has been tested on computers with the configurations listed below. Intel Core 2 Duo T9900 or Core i7 (2.8GHz clock speed)Windows 7, Mac OS X 10.6.8 (Snow Leopard) or higher, and Linux (Ubuntu 13)AMD Radeon HD 6970M/AMD Mobility Radeon HD 4850/Nvidia GeForce 9600M GT8GB RAM Posters.
1,000,000,000,000 Frames/Second Photography - Ramesh Raskar. Relativistic Baseball. What would happen if you tried to hit a baseball pitched at 90% the speed of light? - Ellen McManis Let’s set aside the question of how we got the baseball moving that fast. We'll suppose it's a normal pitch, except in the instant the pitcher releases the ball, it magically accelerates to 0.9c. From that point onward, everything proceeds according to normal physics. The answer turns out to be “a lot of things”, and they all happen very quickly, and it doesn’t end well for the batter (or the pitcher). The ball is going so fast that everything else is practically stationary. The ideas of aerodynamics don’t apply here. These gamma rays and debris expand outward in a bubble centered on the pitcher’s mound.
The constant fusion at the front of the ball pushes back on it, slowing it down, as if the ball were a rocket flying tail-first while firing its engines. After about 70 nanoseconds the ball arrives at home plate. Suppose you’re watching from a hilltop outside the city. Smithsonian Institution Libraries : Volume V Sil19-05-053. NASA. Observing With NASA. SCIENCE HOBBYIST: Top Page. SDO | Solar Dynamics Observatory. RuSpace | Soyuz console. Fighter jet and spaceship cockpits seem to fascinate me and that of the Soyuz is no exception; unfortunately there are no detailed diagrams or manuals publically-available on the Internet that I know of!
The following diagrams are ones I have collected from various places, and are the best I can do at the moment. The Soyuz TM Information Display System is called the “Neptune”, «Нептун»; for the TMA it is the Neptune ME. Some of the buttons and controls on the console can’t be reached without a stick to poke at them! The stick is called Указател, Ukazatel, “Pointer”. The computer used on the Soyuz is called Argon, «Аргон». Some of the Russian translations below are uncertain or unclear (I couldn’t find exact definitions for them). Soyuz SOI “Sirius” for the Soyuz 7K and Soyuz A8 spaceships СОИ «Сириус» кораблей – Союз-7К», Союз-А8» Soyuz T Descent module console SOI “Neptune” for the Soyuz T spaceship Пульт спускаемого аппарата СОИ «Нептун» кораблей «Союз Т» Soyuz TM Soyuz TMA Configuration Links. Flu Wiki Forum www.fluwiki.info. SETI@home. Warning: Gravity is "Only a Theory" by Ellery Schempp.
Future physics .com by rafaël rozendaal, 2007. Frameset Template. Astronomy Picture of the Day. Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2016 April 15 Mercury and Crescent Moon Set Image Credit & Copyright: Miguel Claro (TWAN, Dark Sky Alqueva) Explanation: Innermost planet Mercury and a thin crescent Moon are never found far from the Sun in planet Earth's skies. Taken near dusk on April 8, this colorful evening skyscape shows them both setting toward the western horizon just after the Sun.
The broad Tagus River and city lights of Lisbon, Portugal run through the foreground under the serene twilight sky. Tomorrow's picture: Heliopause Electrostatic Rapid Transit System Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)NASA Official: Phillip Newman Specific rights apply.NASA Web Privacy Policy and Important NoticesA service of:ASD at NASA / GSFC& Michigan Tech. Frans Lanting | LIFE A Journey Through Time. News Blog: Quantum weirdness wins again: Entanglement clocks in at 10,000+ times faster than light. No matter how many times researchers try, there's just no getting around the weirdness of quantum mechanics.
In the latest attempt, researchers at the University of Geneva in Switzerland tried to determine whether entanglement—the fact that measuring a property of one particle instantly determines the property of another—is actually transmitted by some wave-like signal that's fast but not infinitely fast. Their test involved a series of measurements on pairs of entangled photons (particles of light) that were generated in Geneva (satellite view at left) and then split apart by optical fiber to two villages 18 kilometers (11 miles) apart where the team had set up photon detectors.
(In 2007, researchers transmitted entangled light 144 kilometers between two of the Canary Islands.) The idea in the new experiment is that the photons in each entangled pair are hitting the distant detectors simultaneously, so there's no time for them to exchange a signal. What might such a theory look like? State of the Nation. If possible, the first images in each set will be true-color, as you would see them with your own eyes.
Most images will either be true-color or monochrome (black and white), unless stated otherwise. Many images can be vastly enlarged by clicking on them and choosing a larger size from the Flickr page. Downloading them may allow even larger sizes. It appears there's a limit to the size of diaries, so this first part of the tour ends about 3/4 of the way through the Saturn system (which is quite extensive). I. You might be tempted to think Mercury is very similar to the Moon, but compare and contrast them, and think about what the differences might mean. II. Through UV and orange filters: From the Soviet Venera 13 lander: From Venera 14: This is a perspective mosaic of Venera images put together by Don P. III. Can you spot Earth in this Voyager 2 image taken beyond Pluto?
Luna IV. There are only two NEOs that have clear, interesting, photographic images at the moment. 25143 Itokawa 433 Eros V. Io. 8 Wonders of the Solar System, Made Interactive. The Scale of the Universe. Chromoscope - View the Universe in different wavelengths. TOP TEN UNSOLVED PROBLEMS IN PHYSICS. The Sounds of Pulsars. A pulsar is a highly magnetised neutron star, with a radius of 10-15 km, having somewhat greater mass than the Sun which has a radius of approximately 1 million km. Radiation is beamed out along the magnetic poles and pulses of radiation are received as the beam crosses the Earth, in the same manner as the beam from a lighthouse causes flashes.
Being enormous cosmic flywheels with a tick attached, they make some of the best clocks known to mankind. These sounds directly correspond to the radio-waves emitted by the brightest pulsars in the sky as received by some of the largest radio telescopes in the world. To listen to the pulses of a radio pulsar, click on its arrow icon. Learn.Genetics™ Sonoluminescence. Single-bubble sonoluminescence - A single, cavitating bubble.
Video of synthetic wound cavity collapsing creating sonoluminescence. Long exposure image of multi-bubble sonoluminescence created by a high-intensity ultrasonic horn immersed in a beaker of liquid History[edit] The sonoluminescence effect was first discovered at the University of Cologne in 1934 as a result of work on sonar. [citation needed] H. Frenzel and H. In 1989 an experimental advance was introduced by Felipe Gaitan and Lawrence Crum, who produced stable single-bubble sonoluminescence (SBSL). Properties[edit] Sonoluminescence can occur when a sound wave of sufficient intensity induces a gaseous cavity within a liquid to collapse quickly. Some facts about sonoluminescence: Rayleigh–Plesset equation[edit] The dynamics of the motion of the bubble is characterized to a first approximation by the Rayleigh-Plesset equation (named after Lord Rayleigh and Milton Plesset): Mechanism of phenomenon[edit] In 2002, M.
Other proposals[edit] NASA - JPL Solar System Simulator. Planets. Home | Practical Physics. This website is for teachers of physics in schools and colleges. It is a collection of experiments that demonstrate a wide range of physical concepts and processes. Some of the experiments can be used as starting-points for investigations or for enhancement activities. Many have links to carefully selected further reading and all include information and guidance for technicians. Physics is a practical science. Practical activities are not just motivational and fun: they can also sharpen students’ powers of observation, stimulate questions, and help develop new understanding and vocabulary. Good quality, appropriate physics experiments and investigations are the key to enhanced learning, and clarification and consolidation of theory. We have published a new set of resources to support the teaching of practical science for Key Stages 3-5.
Space Time Travel – Relativity Visualized. The Speed of God : Uncertain Principles. Over in Twitter-land, Eric Weinstein is visiting the AMNH at the same time as a bunch of Orthodox Jews, and takes the opportunity for a little Q&A: Me: Excuse me, but how is the phylogenetic tree reconciled with Torah.Modern Orthodox Man: Lorentzian time dilation. It’s a head hurter. This is an interesting attempt to square the six-day creation story with modern science, and raises one obvious question: How fast must God have been moving for the six days of creation to last 13.7 billion years? This is veering into Built on Facts territory, but the relevant formula is: For six days (5.18×105 seconds) to seem like 13.7 billion years (4.32×1018 seconds), the Lorentz factor γ would need to be 8.34×1012.
Solving this for the relative speed as a fraction of the speed of light tells us that God must be moving at: vGod = 0.99999999999999999999999999281254 c That’s only 2.15×10-16 m/s short of the speed of light. (You might try to claim that God’s mass should be zero, given that He is insubstantial. The Celestia Motherlode: Solar System. Welcome to Cool Cosmos! Short Words to Explain Relativity.
So, have a seat. Put your feet up. This may take some time. Can I get you some tea? Earl Grey? Okay. Okay. Say you woke up one day and your bed was gone. Now, let's add the bed back. Now, if I took the bed back but gave you the sun -- just you and the sun in the void, now -- I'll bet you'd say that the sun is so big, next to you, that odds are you move and not the sun. In a word, you can't find any one true "at rest". Aha, but now wait! Well, and so we went to test this idea out. To say that we were less than glad to find that out is to be kind. Old Al, he came out the blue and said, "Not only do rays move at c if what puts them out is held fast or not: they move at c even if you are held fast or not.
" But for that to be true, then time also has to get in on the act. I can hear you say, "No way. So you see, when you give up on the idea of a one true "at rest", then you have to give up on the idea of a one true time as well! What a snag, eh? But old Al's mind was set. But Herb -- what? Paul A.M. Dirac - Biography. Paul Adrien Maurice Dirac was born on 8th August, 1902, at Bristol, England, his father being Swiss and his mother English.
He was educated at the Merchant Venturer's Secondary School, Bristol, then went on to Bristol University. Here, he studied electrical engineering, obtaining the B.Sc. (Engineering) degree in 1921. He then studied mathematics for two years at Bristol University, later going on to St. John's College, Cambridge, as a research student in mathematics. He received his Ph.D. degree in 1926. The following year he became a Fellow of St.John's College and, in 1932, Lucasian Professor of Mathematics at Cambridge. Dirac's work has been concerned with the mathematical and theoretical aspects of quantum mechanics. The importance of Dirac's work lies essentially in his famous wave equation, which introduced special relativity into Schrödinger's equation. He was elected a Fellow of the Royal Society in 1930, being awarded the Society's Royal Medal and the Copley Medal. Paul A.M. The Bone-Chilling Sound of the Planets Won't Let You Sleep Tonight. UDF SkyWalker V1.0.
College Museum of Ancient Inventions: Home Page. 5 Really Weird Things About Water. Water, good ol' H2O, seems like a pretty simple substance to you and me. But in reality, water - the foundation of life and most common of liquid - is really weird and scientists actually don't completely understand how water works. Here are 5 really weird things about water: 1. Hot Water Freezes Faster Than Cold Water Take two pails of water; fill one with hot water and the other one with cold water, and put them in the freezer. In 1963, a Tanzanian high-school student named Erasto B. Thankfully, Mpemba didn't back down - he convinced a physics professor to conduct an experiment which eventually confirmed his observations: in certain conditions, hot water indeed freezes before cold water*.
Actually, Mpemba was in good company. But how do scientists explain this strange phenomenon? 2. Everybody knows that when you cool water to 0 °C (32 °F) it forms ice ... except that in some cases it doesn't! Note: Similarly, superheated water remains liquid even when heated past its boiling point. 3. 4. Science News, Articles and Information | Scientific American. Atomic Structure Lessons : Chemistry Zone. Solar and Heliospheric Observatory Homepage. Evol_massive5.swf (application/x-shockwave-flash Object) Atomic Structure. An updated version of this lesson is available at Visionlearning: Atomic Theory & Ions & Isotopes In the last lesson we learned that atoms were particles of elements, substances that could not be broken down further.
In examining atomic structure though, we have to clarify this statement. An atom cannot be broken down further without changing the chemical nature of the substance. For example, if you have 1 ton, 1 gram or 1 atom of oxygen, all of these units have the same properties. We can break down the atom of oxygen into smaller particles, however, when we do the atom looses its chemical properties. For example, if you have 100 watches, or one watch, they all behave like watches and tell time. Atoms are made up of 3 types of particles , and . A neutron walked into a bar and asked how much for a drink. The bartender replied, "for you, no charge. " -Jaime - Internet Chemistry Jokes Keep in mind that atoms are extremely small. As you can see, helium is larger than hydrogen. Two of hydrogen.
Fundamental Forces.