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Joined 5 months ago
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Cake day: June 23rd, 2024

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  • Amateurs.

    The 1963 Černý Důl – Kunčice nad Labem aerial ropeway is over 8 km (5 mi) long, over 30 m high in places and carries 135 tons of limestone every hour from a quarry to the nearest train station. Its 120kW 3-phase synchronous motor requires power for a few minutes at the start and end of each day when most of the 800kg-capacity trolleys are empty, and spends most of the shift generating mains electricity and acting as a speed governor. Unlike the EV, it is fully autonomous most of the way, only 5 people are required to operate it. (Loading, unloading and timed dispatching is automatic, arriving/leaving carts just need to be checked; a safety latch has to be manually dis/engaged on trolleys passing the check.) The quarry will continue operation as long as it pays off, then the ropeway will be scrapped (projected 2033). A dude illegally rode the way up on it somewhat recently. He could have fallen to his death if he pulled the latch.



  • Of course, what they call “camera” might be a high-res spectrometer, plus there may be stacking, tiling, digital optics correction etc. However, the camera did capture a visible-light picture so it has a “natural” interpretation (you can convert it into a “human POV”) and this is not that. It probably does not even convey extra information (such as exact wavelengths our cones cannot distinguish) so it’s akin to just using a solarization filter on a normal color CMOS camera photo.