如果您無法觀看此影片,您的瀏覽器可能不支援 HTML5 視訊技術
要觀看此影片必須開啟 JavaScript,請確認瀏覽器已經設定正確supports HTML5 video
THEY HAVE HIDDEN SO MUCH FROM HUMANITY! THIS VIDEO SHOWS SOME OF THE TECHNOLOGIES AND OTHER THINGS THAT HAVE BEEN KEPT A SECRET FROM THE MASSES.