视频 | “海啸”铺天盖地而来？葡萄牙沙滩上演末日场景 专家:“卷轴云”现象
葡萄牙北部出现奇景，人们在布瓦科斯海滩游玩，一抬头竟目睹“海啸”铺天盖地而来，彷佛末日灾难即将到来。
BY 星洲日报 Sin Chew Daily
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.
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.
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