东京奥运会圣火采集仪式将举行 | 一周看点
东京奥运会圣火采集仪式将举行
希腊奥委会3月9日表示，计划于12日在古奥林匹亚赫拉神庙举行的2020年东京奥运会圣火采集仪式，将在没有观众的情况下举行。奥林匹亚市所属的伊利亚州是希腊新冠肺炎疫情最严重的地区之一。
外媒报道
The Tokyo 2020 Olympics torch lighting ceremony in ancient Olympia will be the first in more than 35 years to be held without spectators after organizers on Monday introduced tighter measures to protect against the coronavirus.
在古奥林匹亚举行的2020年东京奥运会圣火采集仪式，将是35年来首次在没有观众的情况下举行。此前，主办方于本周一（3月9日）出台了更严格的预防新冠病毒的措施。
Greece’s Olympic Committee said spectators would be excluded from both the dress rehearsal at the ancient site on Wednesday and the widely broadcast ceremony on Thursday.
希腊奥委会表示，将在古老神庙举行的彩排（周三）和大范围直播仪式（周四）都不允许观众入场。
This is the first time since the 1984 Los Angeles Olympics that the ceremony will be held without any spectators lounging on the grassy slopes of the ancient stadium in the tiny Peloponesian hamlet. The ceremony - held both for summer and winter Games - usually attracts several thousand spectators, including Greeks and foreign visitors.
这是自1984年洛杉矶奥运会以来，奥运圣火采集仪式第一次在没有观众的情况下举行。仪式举行时，不会有观众在这个伯罗奔尼撒半岛小村庄古老神庙的草坡上闲逛。夏季和冬季奥运会的圣火采集仪式通常会吸引数千名观众，包括希腊人和外国游客。
南极出现了血红色的雪
几周前，乌克兰教育和科学部在Facebook上发布的帖子显示，在南极半岛最北端沿海一个岛屿上的一个研究站被“大雪”覆盖。但是这些“雪”有些不同寻常，因为它是红色的。但是这个看起来很血腥的场景其实和捕猎海豹没有什么联系。据悉，这是因为一种叫做“雪衣藻”的藻类植物在作祟。
外媒报道
“Our scientists have identified them under a microscope as Chlamydomonas nivalis,” said the National Antarctic Scientific Centre of Ukraine in a Facebook post.
乌克兰国家南极科学中心在Facebook上发的一篇文章中说：“我们的科学家通过在显微镜下观察，已经确定了它们是雪地衣藻。”
These microscopic green algae (we’ll get to why they look red in a moment), a type of single-cellular seaweed, are common in all icy and snowy regions of Earth, from the arctic to alpine regions.
这些微生绿藻（我们一会就知道它们为什么是红色的了）是一种单细胞海藻，在地球上被冰雪覆盖的地区很常见，从北极到高山地区都有。
They lie slumbering during the brutal winter, but once the sunlight warms enough to soften their crystallised world, the algae spring awake, making use of the meltwater and sunlight to rapidly bloom.
寒冬时期它们会冬眠，一旦阳光变暖，冰雪融化，藻类就苏醒了，利用融水和阳光迅速开花。
“The algae need liquid water in order to bloom,” University of Leeds microbiologist Steffi Lutz told Gizmodo in 2016.
利兹大学微生物学家Steffi Lutz在2016年告诉Gizmodo（美国一个知名科技博客）：“这种藻类需要液态水来开花。”
“[The algal blooms] contribute to climate change,” the centre stated.
该中心表示：“‘藻花’会加速气候变化。”
梅根和哈里王子依旧保留王室头衔
梅根和哈里宣布要放弃“高级”王室成员身份，最主要的一个问题就是他们的头衔。他们还会被称为殿下吗？苏塞克斯公爵和公爵夫人的头衔怎么办？
简单地讲，现在的情况是，他们依然能保留自己的主要头衔，也就是公爵和公爵夫人，只是在使用规范上发生了变化，比如以后不能再叫“殿下”。
外媒报道
The Duke and Duchess of Sussex are grateful to Her Majesty and the Royal Family for their ongoing support as they embark on the next chapter of their lives.
苏塞克斯公爵夫妇要掀开生活的新篇章，他们非常感激女王和王室的一贯支持。
As agreed in this new arrangement, they understand that they are required to step back from Royal duties, including official military appointments. They will no longer receive public funds for Royal duties.
按照新的安排，他们明白自己失去了王室职责，包括正式的军事任命，将不能再接受因王室职责而获得的公共资金。
With The Queen’s blessing, the Sussexes will continue to maintain their private patronages and associations. While they can no longer formally represent The Queen, the Sussexes have made clear that everything they do will continue to uphold the values of Her Majesty.
经女王同意，苏塞克斯公爵夫妇将继续保留私人赞助和协会。虽然他们不能再正式代表女王，但他们明确表示所有行为会继续维护女王陛下的价值观。
The Sussexes will not use their HRH titles as they are no longer working members of the Royal Family.
苏塞克斯公爵夫妇将不再使用“殿下”(HRH)头衔，因为他们不再是王室的工作成员。
Facebook推出3D照片功能
2018年Facebook首次展示了3D照片，一个月之后又分享了产品的技术细节。但当时除非你有一部双摄像头的手机，否则你自己拍不出这种效果。
而现在更新后的技术让我们只有单摄像头手机的人也能拍出3D照片了。
外媒报道
In case you don’t remember or haven’t seen one lately, the 3D photos work by analyzing a 2D picture and slicing it into a ton of layers that move separately when you tilt the phone or scroll. I’m not a big fan of 3D anything, and I don’t even use Facebook, but the simple fact is this feature is pretty cool.
以防你忘了或者最近没见过Facebook的3D照片，我可以告诉你，这种3D照片技术先要分析2D照片并把它切分成很多层，倾斜手机或滚动屏幕时各层可以独立移动。我不是特别热衷3D的东西，我甚至都不用Facebook，但我喜欢这个功能的原因很简单，就是它太棒了。
The problem is it used the dual-camera feature to help the system determine distance, which informed how the picture should be sliced. That meant I, with my beautiful iPhone SE, was out of the running - along with about a billion other people who hadn’t bought into the dual-camera thing yet.
问题是以前要使用双摄功能来帮助系统确定距离，这样才能知道如何切分照片。这就意味着我和我美美的iPhone SE做不到，还有约十亿人当时都没有买双摄手机。
But over the last few years the computer vision team over at Facebook has been working on making it possible to do this without dual-camera input. At last they succeeded, and this blog post explains, in terms technical enough that I’m not even going to attempt to summarize them here, just how they did it.
但在过去几年里，Facebook的计算机视觉团队一直在研究如何不用双摄像头就能实现这一功能，最终他们成功了。这篇博文解释了他们是如何做到的，技术层面的问题我就不打算在这里总结了。
The advances mean that many - though not all - relatively modern single-camera phones should be able to use the feature. Google’s Pixel series is now supported, and single-camera iPhones from the 7 forward. The huge diversity of Android devices makes it hard to say which will and won’t be supported - it depends on a few things not usually listed on the spec sheet - but you’ll be able to tell once your Facebook app updates and you take a picture.
取得的进步意味着虽然并非所有手机，但是目前很多相对高级的单摄像头手机应该都能使用这一功能了。谷歌Pixel系列现在支持这一功能，还有单摄像头的iPhone 7及配置更高的手机都可以。安卓手机种类太多，很难说哪些安卓手机支持这一功能，这取决于一些通常没有在产品规格中显示的数据。但你只要更新一下手机中的Facebook应用，拍个照片就知道了。
