It works by taking a title sequence, which is created with movie-make-title, and all the movies that you want to put onto the DVD. It will combine these to create a menu with the title sequence in the background (and the audio of the title sequence will be audible while the viewer is choosing) and picture-in-picture previews of all the movies. Furthermore, it is possible to supply extra information about the movies, which a viewer can choose to look at as well. Such a title sequence can be used as the background of a navigational menu that you can create with movie-title. The viewer of the DVD will be able to view the extra information by choosing the little "information" icon that will be available with the episode in the DVD's menu. The viewer of the DVD will be able to view the extra information by choosing the little "information" icon that will be available with the episode in the DVD's menu.
It is composed of 300 water Cherenkov detectors (WCD). Each of them is a cylinder of 7.3 m in diameter and 4.5 m in height. POSTSUPERSCRIPT. They are equipped with 4 upward facing photomultiplier tubes (PMT), one 10” Hamamatsu R7081-HQE at the centre of the tank and three 8” R5912 halfway to the edges. 95%. Those two characteristics compensate the smaller instantaneous sensitivity compared to the imaging atmospheric Cherenkov technique, especially at the highest energies for which fluxes tend to be low. Around 10 TeV, the footprint on the ground produced by a gamma-ray shower is comparable to the size of the instrument. Therefore, most of the events triggering the instrument will fall outside the main array which makes the event reconstruction less accurate because of degeneracy between the core position and the energy of the shower. In order to improve the reconstruction of those events thus improving the instrument sensitivity, a sparse outrigger array of small tanks has been added around the main array.
There, in the year 673, true Greek fire - petroleum-based, self-lighting and impervious to water quenching - was said to have been used to devastating effect by Byzantine emperor Constantine IV's forces against an attacking Arab fleet. Oh, well - that's the problem with taking state secrets to your grave. Watching an aeolipile do its work was the equivalent of a Netflix binge back in the day. In the Tom Stoppard play "Rosencrantz and Guildenstern Are Dead," dimwitted Rosencrantz repeatedly stumbles onto notable scientific and technical discoveries, often via toys (neither he nor Guildenstern grasp what he's done). These droll scenes raise a thorny question: Do you have to recognize a thing's operational principle to lay claim to discovering it? Should we credit the inventor of a steam-driven toy with the discovery of steam power? Whatever your answer, there's no question that the aeolipile, a toy devised in the first century by inventor Heron of Alexandria, was a steam turbine - a device that turns the thermal energy of escaping steam into mechanical energy.|Michael Phelps crushed the competition at the 2008 Beijing games. But how? See more Olympic pictures. Sweat dripping off the forehead, water cascading from the body, legs aching after the exertion. All may occur during the sort of intense, physical toils Olympians undergo to prepare for their events. Plus, do we even need to mention the multiple daily workouts, diet scrutiny and absurdly early wakeups? And yet, years of hard training can prove itself in a window of mere seconds, mere inches or mere pounds, depending on the event. But many Olympic athletes have an edge over the rest of us, and over some of their competition, too. That's because a lot of factors can influence an athlete's success -- some inborn, some acquired. Take Michael Phelps. There's been a lot of speculation about how he managed to win an unprecedented eight gold medals at the 2008 Beijing games. But others think it's purely a matter of relentless training and skill refinement.
Optimus Prime in biped form, from "The Transformers" movie.See more pictures of robots. Without a doubt, the HowStuffWorks staff is anxious about the upcoming "Transformers" movie. We don't just wonder whether it will be good. We wonder whether we'll see robots with Transformers' capabilities during our lifetimes. While full-scale Transformers seem a little implausible -. Impractical - it turns out that some existing robots have a lot in common with Transformers. In this article, we'll explore what these transforming robots look like, how they work and how they're similar to Transformers like Optimus Prime. We'll begin with an analysis of Prime himself. He's enormous and impressive, but could he ever be real? To find out, we asked engineer Michael D. Belote what it would take to build a full-scale tractor-trailer that can convert into a bipedal robot. In other words, what would it take to make a life-sized version of Optimus Prime? Some self-reconfiguring robots, or robots that can change their shapes to perform different tasks, exist today.
First, gravity is a force that causes objects to attract one another. The simplest way to understand gravity is through Isaac Newton's law of universal gravitation. This law states that every particle in the universe attracts every other particle. The more massive an object is, the more strongly it attracts other objects. The closer objects are, the more strongly they attract each other. An enormous object, like the Earth, easily attracts objects that are close to it, like apples hanging from trees. Scientists haven't decided exactly what causes this attraction, but they believe it exists everywhere in the universe. Second, air is a fluid that behaves essentially the same way liquids do. Like liquids, air is made of microscopic particles that move in relation to one another. Air also moves like water does -- in fact, some aerodynamic tests take place underwater instead of in the air. The particles in gasses, like the ones that make up air, are simply farther apart and move faster than the particles in liquids.|How Do Sparklers Work? When the United States celebrates its Independence Day, focus turns to topics both serious and lighthearted. While the long July 4 weekend prompts thoughts of the meaning of democracy and representative, republican government, it also inspires family gatherings, grilled food and festive displays of celebratory fireworks. But while many people have engaged in shooting off a bottle rocket or marveling at explosive spectacle high in the sky, one of the most common forms of firework is the humble sparkler. The fine folks at the American Chemical Society have put together an easy-to-understand video about sparklers featuring some pretty cool slow-motion action. Fuel sources for sparklers can be iron, titanium, aluminum and magnesium and more. And what exactly sparkles in a sparkler? It's powdered metals catching fire, and what you see fly off into lovely sparkles are actually tiny ignited fragments of metal. They're also super hot - from 1800 to 2900 degrees Fahrenheit (1000 to 1600 degrees Celsius), but burn up quickly due to their microscopic size.
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‘Survival mode’: Inflation falls hardest on low-income Americans
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