Pricing, channels, features, content, and compatible devices subject to change. Number of permitted concurrent streams will vary based on the terms of your subscription. Programming subject to regional availability, blackouts, and device restrictions. Live TV may vary by subscription and location. Location data required to access content on mobile devices for any Live TV subscription. Streaming content may count against your data usage. Multiple concurrent streams and HD content may require higher bandwidth. Compatible device and high-speed, broadband Internet connection required. Live TV is available in the 50 United States and the District of Columbia only. For personal and non-commercial use only. Trial and error gradually improved the performance, and it was found the angle of the magnetic sensor, the length of the wire and the spacing of the magnets at 4 cm (1.6 in) apart, were critical factors.7-day free trial for Live TV and 30-day free trial for Add-Ons valid for new and eligible existing subscribers only. Initially, at the beginning of 2014, the timing was not correctly matched, and the Linear Liner was painfully slow. To time this on/off repulsion force correctly to the regular embedded magnets in the middle of the train tracks, they needed a sensor. What was needed was a switchable high-speed electromagnet that occasionally applied repulsion (pushing force) to the train, but only from the rear backwards. As momentum was kept, due to the low friction of floating, he only needed to apply a force occasionally to move – a technique similar to the river art of punting. But they were determined that this pushing force would not come from air and especially not from powered wheels.Įnlightenment arrived in the bath, when one of the engineers realized that by pushing occasionally with his hands on the bottom of the bathtub, he moved backwards and forwards in the bath when floating. Punting alongīy the end of 2013, almost a year into the project, the toy designers at Takara Tomy had something that levitated but did not move, unless it was pushed. To keep the illusion and dream of pure magnetic transportation, these rollers run along a transparent sidewall that literally keeps the train on track. These guide rollers center the Linear Liner and maintain the magnetic levitation height of 2 mm. It was decided to make one concession to wheels for increased lateral stability, by adding small guide rollers mounted horizontally on each side of each car. To levitate the train, a duplicate of the same arrangement of magnets was made along the length of the underside of each of the cars to achieve the required repulsion force. And at these thicknesses, it was possible to bend the magnet into a curve, if clad in rubber. They realized and physically proved that a long magnetic strip still retains its north/south polarity on opposite sides along its entire length, even at a thickness of around a millimeter. ![]() The solution to making a simpler non-electrified track literally came from the magnetic whiteboard the engineers were using to explain their ideas. So the company opted for a cheaper and simpler non-electrified track (a dumb track), which meant the train became the complex unit. Takara Tomy's initial research in the spring of 2013 showed that replicating an electrified track (known as a smart track) for a miniature SC Maglev would result in a toy well beyond the price range of most customers. This is achieved by floating, through the repulsion forces between two polar identical magnets. The initial driving force behind the Linear Liner, and any magnetic levitation type of transportation, is the dream of eliminating most or all of the drive friction required for moving. ![]() The Linear Liner uses an original magnetic propulsion system, and has an intriguing creation story behind it. However, all is not what it seems, as it is more than just a 1/90th scale facsimile of the real thing. Japanese toy company Takara Tomy is offering a working scale replica of the record-breaking 603 km/h (375 mph) SC Maglev (Superconducting Magnetic levitation) Train.
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