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Japan’s 600-year-old Daisugi forestry method lets a single tree produce timber for centuries

Japan’s 600-year-old Daisugi technique offers a unique way to produce timber without cutting down entire trees. Developed in Kyoto during the 14th century, the method allows a single cedar tree to grow multiple straight trunks that can be harvested for centuries. The ancient practice is now drawing attention as an example of sustainable forestry amid

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Meet Token Saver: An Open-Source MCP Extension Using Local Hybrid RAG to Cut Claude PDF Token Costs 90-99%

AI developers, researchers, and professionals frequently hit a frustrating wall when analyzing large documents with LLMs: the hidden, compounding cost of context windows. Pasting a 200-page PDF into a chat isn’t a one-time charge. Because the conversation history is re-sent to the model on every single turn, that massive document is paid for again with

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Why the last woolly mammoths survived 6,000 years after the Ice Age

Recent genetic studies have revised the understanding of woolly mammoth extinction. These ancient DNA analyses suggest inbreeding alone did not cause their demise. The last mammoths on Wrangel Island survived for millennia despite genetic isolation. A sudden event, not gradual genetic decline, likely ended their final chapter. This research offers insights for modern endangered species

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