Jiangsu little entrance is now God questions: finding the app splash screen shot time and micro-letters, college entrance examination-IT information

As a number of prerequisite software, micro-start interface-is the lonely little people stood looking at the Earth from the moon picture-you should be very familiar with. What is surprising is, the picture appeared in the national entrance examination problem.

According to Netizen claimed, in the small college entrance examination in Jiangsu Province yesterday, geography paper loomed in the app the splash screen, but also presents a problem that most candidates RIP forcing: this picture was taken a few months?

This question seems hard to answer, but if you pay attention you can find a breakthrough, such as the Moon relative to the Earth, Antarctica in the day-time and other information are displayed in the diagram. In fact, this picture was taken just before and after the winter solstice, analysis process, see the technical paper: the app splash screen villain stood in a paper.

Information shows that this photo was taken by 43 on December 7, 1972, the Apollo 17th 5 hours after the shuttle launch, after leaving low Earth orbit to the Moon 1 hour 48 minutes, 45000 kilometers from Earth. At comes as African city of afternoon time, again plus December close winter solstice, so Antarctica also are by Sun positive irradiation, shine of Sun in spacecraft behind illuminated has full of half Earth, station in astronaut of eye angle, Yu 45000 km zhiwai far see past, Earth on like is a star is small of blue play beads, this is this Zhang photos name--Blue play beads of origin.

江苏小高考现神题：求微信启动画面的拍摄时间 - 微信,高考 - IT资讯

作为一款装机必备软件，微信的启动界面——就是那个孤独小人站在月球上遥望地球的画面——大家应该非常熟悉。现在令人意外的是，该画面竟然在高考题中出现了。

据网友爆料，在昨日进行的江苏小高考中，地理试卷中赫然出现了微信启动画面，而且还提出了一个令大多数考生懵逼的问题：请问这张图是几月份拍摄的？

这道题看上去似乎难以作答，但只要稍加注意便可找到突破口，比如月球相对地球的位置、南极处在极昼时段等信息都已在图中展示。实际上，这张照片的拍摄时间就在冬至前后，具体分析过程可参阅《技术文：微信启动画面里的小人究竟站在哪里》一文。

资料显示，这张照片拍摄于43年前的1972年12月7日，阿波罗17号飞船发射升空后5小时，离开近地轨道前往月球后的1小时48分，距离地球45000公里。当时正值非洲大陆的下午时分，再加上12月份接近冬至，所以南极洲亦正受到太阳正面照射，光芒万丈的太阳在飞船后边照亮了完整的半个地球，站在宇航员的肉眼角度，于45000公里之外远远看过去，地球就像是一颗很小的蓝色弹珠，这就是这张照片名字——《蓝色弹珠》的由来。