淘客熙熙

主题:【原创】嫦娥抽阿婆骡第一鞭 -- 方天化几

共:💬293 🌺735 🌵18
分页树展主题 · 全看首页 上页
/ 20
下页 末页
                                                                              • 家园 你的脑子早就晕了,嘿嘿,你先承认

                                                                                “犄角旮旯都有偏门东东,国家博物馆当然会有”

                                                                                这是你说的吧?

                                                                                “你没见过国家航天博物管里的偏门吗”

                                                                                这是你说的吧?

                                                                                你自己回答你究竟看见啥偏门了?什么东西那让你认为偏门?

                                                                                • 家园 偏门我当然见过

                                                                                  比如20年代飞机票海报,哈勃的CCD,唯一现存还能飞的P39。。。

                                                                                  说说你认为的"破马甲"是啥,让大家看看有多偏。。。

                                                                                  • 家园 我不认为你说的这些是偏门

                                                                                    http://en.wikipedia.org/wiki/File:Gene_Kranz%27s_vest_from_Apollo_13_by_Matthew_Bisanz.jpg

                                                                                    • 家园 稀奇吗

                                                                                      二战那种更大场面,更重要的历史事件,烟斗,签字笔,家书还不是收集的很多。

                                                                                      • 家园 稀奇!因为阿婆骡很多数据和图纸都丢了
                                                                                        • 家园 又来这种传言了

                                                                                          多看看吧,辟谣过多少遍了。

                                                                                          以前图纸存为缩微胶片,大学图书馆里都有阅读缩微胶片的工具。。。

                                                                                          • 家园 第一次登月的原始录像确实丢了

                                                                                            nasa的调查结论认为80年代初的时候录像带不够用,于是把第一次登月的原始录像擦了当空白带使用。。。不管你信不信,反正我是信了。

                                                                                            nasa官方的调查报告

                                                                                            外链出处

                                                                                            结论摘录

                                                                                            The day Neil Armstrong and Astronaut Buzz Aldrin walked on moon, the tracking stations faithfully recorded the event. Nafzger figures that each of the three stations used 15 one-inch tape reels to record the actual event, meaning that Goddard received a total of 45 tapes documenting the history-making occasion. Because the WNRC no longer stored the Apollo-era tapes, Nafzger could draw only one conclusion based on

                                                                                            what he read in the weeklies: The 45 Apollo 11 tapes were degaussed, recertified, and reused to satisfy a NASA-wide shortage of one-inch tapes more than a decade later. NASA's M-22 recordings of the Apollo 11 moonwalk likely were gone forever.

                                                                                            如果nasa当时出来吼一嗓子"录像带不够用啦",大把的民间收藏家愿意用空白带子换第一次登月的原始录像吧。

                                                                                            • 家园 搞清楚,那是数据记录带

                                                                                              好吧,我搞错了以为是另外一些数据带。。。以下不对,请忽略。

                                                                                              不是什么录像带。

                                                                                              就是一路记载各种数据,血压,心跳,飞船姿态。一旦失败会有用处,可以分析数据。成功了就是垃圾。就如飞机的黑匣子数据记录,飞机事故了,才有用。不出事故,屁用没有,循环记录,新数据覆盖旧的。。。

                                                                                              • 家园 请仔细看看nasa的官方报告

                                                                                                再来说说丢失的到底记录什么的带子。

                                                                                                引用报告第一页的几段

                                                                                                What most people did not realize, however, is that the television footage they viewed was actually inferior to what ground station engineers saw as the raw footage arrived from the moon 250,000 miles away. While the public saw blurry, ghostlike images, the engineers working at NASA's tracking stations in California and Australia saw clear, crisp video on special television monitors capable of displaying the unconventional video. Although NASA engineers knew that the scan converter would degrade the original picture quality, they viewed it as an engineering trade-off. NASA wanted live television and the only way to provide it at the time was with scan-conversion technology, despite the degradation.

                                                                                                In the triumph of the day, no one at the tracking stations considered these differences and certainly the public was unaware. The engineers boxed the one-inch telemetry tapes wound onto 14-inch canister reels-which served no other purpose than to provide backup if the live relay failed-and shipped them to the Goddard Space Flight Center. From there, the tapes were sent to the Washington National Records Center (WRNC) in Suitland, Md.

                                                                                                The engineers never saw the back-up telemetry tapes again.

                                                                                                登月当天电视直播的图象是经过处理的,比nasa自己监控时看到的图象质量要低,这是为了满足电视直播的要求。作为电视直播的备份,nasa的工程师自己也录了一份,之后这些带子被送往Goddard Space Flight Center。但再也没有人看到过这些记录带。

                                                                                                这些记录带记录的不是监控数据,而是直播失败时可以拿来录播的视频。

                                                                                          • 家园 多看看吧,辟阿婆骡谣过多少遍了。

                                                                                            给你看个好玩的

                                                                                            https://www.youtube.com/watch?v=weFpGufxq0I

分页树展主题 · 全看首页 上页
/ 20
下页 末页


有趣有益,互惠互利;开阔视野,博采众长。
虚拟的网络,真实的人。天南地北客,相逢皆朋友

Copyright © cchere 西西河