Questions for ‘Rare earths’ hidden electrons make much of modern tech possible’
![a photo of a maglev train leaving a train station](https://www.snexplores.org/wp-content/uploads/2023/05/1440_rare_earths_maglev_feat-1030x580.jpg)
The Shanghai Transrapid is a high-speed magnetic levitation (maglev) train that travels at speeds up to 430 kilometers (270 miles) per hour. The magnets needed for such systems rely on rare-earth metals. Six railways currently offer high-speed, low-energy maglev service.
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