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Thermo-acoustic nuclear fuel rods

It’s been more than three years since the Fukushima Daiichi power plant melted down, and despite nearly unlimited interest from the public we still have virtually no idea what’s going on in there. Detailed findings report the conditions immediately  around the plant, beneath it in the soil, and above it in the atmosphere — but the core of the nuclear power station is so heavily shielded that its status remains largely unknown to this day. Experimental rad-shielded robots inch a bit further in every month, but their progress is slow. Scientists are desperate enough that they’re trying to make use of passing cosmic rays, which are occasionally powerful enough to pass through the core and ferry out some precious intel. But why are we just figuring this out  now ? A new technology developed by academics and the Westinghouse nuclear company could keep this from being a problem in the future. When temperatures or pressures start to fluctuate, their new thermo-acoustic devic