#今天又看了啥 #GitHub #tools
Excalidraw
An open source virtual hand-drawn style whiteboard.
Collaborative and end-to-end encrypted.
支持多人协作和端到端加密的手绘风格开源白板
https://excalidraw.com/
https://github.com/excalidraw/excalidraw
BY MiaoTony's Box
Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.
The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.
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