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传统煮鸡蛋的方法有两种：在 100 摄氏度的沸水中硬煮，但这会导致蛋黄完全凝固；通过真空低温烹调，在 60 到 70 摄氏度下慢慢炖煮一小时，但这会让蛋白不够熟。科学家现在报告了一种被称为“周期性烹饪”的新方法。它不仅让每一颗煮鸡蛋都能达到完美的均匀熟度，还能提升其营养成分。科学家利用计算流体动力学软件模拟出了这种全新的煮蛋过程：将鸡蛋在 100 摄氏度的沸水和 30 摄氏度的冷水中交替浸泡，每两分钟转移一次，总共持续 32 分钟。在这段时间里，蛋白逐渐变得细腻而富有弹性，蛋黄则保持了奶油般的柔软质感。经过处理后蛋黄中的多酚含量显著增加，这是一种被认为对健康非常有益的微量营养素。 Guardian：Scientists crack what they say is the perfect way to boil an egg 科技日报：如何煮出熟度均匀的鸡蛋？
传统煮鸡蛋的方法有两种：在 100 摄氏度的沸水中硬煮，但这会导致蛋黄完全凝固；通过真空低温烹调，在 60 到 70 摄氏度下慢慢炖煮一小时，但这会让蛋白不够熟。科学家现在报告了一种被称为“周期性烹饪”的新方法。它不仅让每一颗煮鸡蛋都能达到完美的均匀熟度，还能提升其营养成分。科学家利用计算流体动力学软件模拟出了这种全新的煮蛋过程：将鸡蛋在 100 摄氏度的沸水和 30 摄氏度的冷水中交替浸泡，每两分钟转移一次，总共持续 32 分钟。在这段时间里，蛋白逐渐变得细腻而富有弹性，蛋黄则保持了奶油般的柔软质感。经过处理后蛋黄中的多酚含量显著增加，这是一种被认为对健康非常有益的微量营养素。 Guardian：Scientists crack what they say is the perfect way to boil an egg 科技日报：如何煮出熟度均匀的鸡蛋？
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China’s stock markets are some of the largest in the world, with total market capitalization reaching RMB 79 trillion (US$12.2 trillion) in 2020. China’s stock markets are seen as a crucial tool for driving economic growth, in particular for financing the country’s rapidly growing high-tech sectors.Although traditionally closed off to overseas investors, China’s financial markets have gradually been loosening restrictions over the past couple of decades. At the same time, reforms have sought to make it easier for Chinese companies to list on onshore stock exchanges, and new programs have been launched in attempts to lure some of China’s most coveted overseas-listed companies back to the country.
How to Invest in Bitcoin?
Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”
