美国推进三项绿能；苹果警告勿将手机贴心放；马斯克开放推特源码

1) Biden administration releases road map to scale up nuclear, hydrogen, and energy storage.

拜登政府发布了#绿色能源#新路线图，将大力支持#核能#、#氢能#和#储能#。

核能方面推进“先进核能”，比传统核反应堆更安全、更高效、更稳定、更可靠，可以在太阳能和风能波动时提供能源，不过，核项目往往会超出预算并且进展较慢，开发商也比较谨慎。

储能方面，包括电池和并网系统，需要削减成本，同时加大投资。

氢燃料方面，有望到2050年替代航空、航运和化工行业中氢的使用，仅氢一项就可以将美国的碳排放减少10%，不过目前氢几乎完全由化石燃料生产，需要技术进步，生产绿氢。

The Biden administration aims to halve emissions by 2030 and hit net-zero emissions by 2050.

The introduction of any new energy technology at scale is not a linear path. It’s a winding road with speed bumps all along the way.

2) Apple warning tells millions how far to keep iPhone from chest – it’s never worth risk and further than you think.

苹果公司警告数百万用户勿将iPhone放在胸前，因为它引起的问题可能比你想象的要严重得多。

例如，有些人装有心脏起搏器或除颤器，手机上的电磁和辐射可能会跟这些设备之间互相响应。

苹果发出的警告主要是针对身上装有医学电子设备的人，其他人大可不必担心。

For example, implanted pacemakers and defibrillators might contain sensors that respond to magnets and radios when in close contact.

Of course, if you don't have a medical device implanted then you can keep your phone as close to yourself as you want.

3) Elon Musk published Twitter’s secret algorithm and got cheers, jeers, and lots of bafflement.

伊隆·马斯克公开推特算法源码，有人欢呼、有人嘲笑、有人困惑。

#马斯克#言出必行，真的公布了推特的算法源代码。算法通常是一个公司的核心机密，马斯克的反常规举动令很多人震惊，包括脸书和SnapChat。

公开的算法代码否定了一些阴谋论，否定了部分人认为推特有党派倾向的嫌疑。但是持怀疑态度的人嫌马斯克做得还不够，还想要看推特数据，还想要看推特究竟如何使用这些算法。

Elon Musk stayed true to his word.

Many of his fans cheered Musk's latest gambit. One user replied to Musk's announcement that this is a "step in the right direction for the future of humanity.

The algorithm, which is basically the formula that decides which tweets a user sees on their timeline, is a valuable asset - many internet companies treat algorithms as something akin to state secrets.