How does Brain Surgery actually Work? > 자유게시판

Each LED acts as a pixel, but because LEDs are much larger than television pixels, the resolution on an LED display won't be very sharp. But what if you want an even more impressive display? The infrastructure, officials said, was too expensive and inefficient to use on a large scale, even if the sun's rays are free. Because they use flat panel television screens, the shirts are a little bulky. If the wire is permanently affixed to the clothing, the wearer will need to carefully wash it by hand and let it dry on a flat surface, or rely on spot cleaning. All the electrical wires you need should be available inside the dash board and they should all be held together with a wire connector, a small, white, plastic rectangle that keeps the wires organized. On the inside of the jacket, each LED attaches to a circuit board. An outfit with EL wire could have several different strands emitting different colors, and might even include a sequencer -- a special circuit board -- connected to the power source that manages each strand's power supply.

Unlike LEDs, which are small bulbs, a PLED display is a thin, flexible film made of polymers and capable of emitting the full color spectrum of light. The circuitry controlling an LED display can be as simple as a power switch, meaning all the LEDs are either turned on or off, or it can include microprocessors, which let the wearer customize how the LEDs light on and off. Most of these companies will alter regular clothing to include LEDs. Using LED displays, you can have a preprogrammed light show on your clothing. The components are also too expensive to sell T-Shirt TV clothing to the consumer market. In the next section, we'll look at how an invention called T-Shirt TV works and the impact it's made on advertising. To learn more about AC and DC power, read our article on How Electricity Works. In this edition of How Stuff Will Work, you will get to see just how Goodwin's electromagnetic propulsion system works and how it could send spacecraft deep into space.

Each plane will fly for eight hours before the next plane takes off. Grant, Andrew. "Quantum Cryptography Takes Flight." Science News. Collins, Clayton. "'Billboards' That Walk, Talk, And Even Flirt a Little." The Christian Science Monitor. The system is bulkier than Adver-Wear, but it's even more interactive and has more functions than T-Shirt TV. Adam Hollander designed and produced the first Adver-Wear shirts -- also known as T-Shirt TV -- because he felt that static advertisements don't reach younger consumers. Electroluminescent clothes are bright and vibrant, and with the right equipment they can display lights in patterns and sequences, but they're still fairly static -- you're limited by the shapes into which you've bent the EL wire. In that case, you'll need to look at technology that can display full moving pictures like television signals. Also, because EL wire needs an AC power system, any outfit that has EL wire will need a battery pack and an inverter -- a device that converts direct current (DC) power to AC power.

It's always a good idea to disconnect a car battery before charging. The employee then attaches a power source, usually a small battery pack that can fit into a jacket, what is electric cable shirt or pants pocket. The air filter is a critical piece of your small engine - all air coming in for combustion passes through it - and if it's dirty, your engine can't breathe right. The signal source could be a small computer containing preloaded video clips or even a WiFi-enabled device that could stream audio and video directly to your clothes. Clothes using PLED displays aren't currently available, though several Web pages list fabric displays as a likely PLED application in the near future. To learn more about fabric displays and related topics, follow the links on the next page. Most companies cover the circuitry with a thin fabric lining. But the passenger service and short routes the railroad companies abandoned were the ones that needed more workers. Many cable companies now offer telephone and Internet along with TV. The word on just about every Internet user's lips these days is "broadband." We have so much more data to send and download today, including audio files, video files and photos, that it's clogging our wimpy modems.