国家地理频道 科学新发现 神秘的烟火世界 National Geographic Naked Science Secret World of Fireworks

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资源信息： 中文名: 国家地理频道 科学新发现 神秘的烟火世界 英文名: National Geographic Naked Science Secret World of Fireworks 资源格式: 720P 发行时间: 2009年 制作发行: National Geographic 地区: 美国 语言: 英语 概述:

本片带领观众走进烟火技术中的神秘配方和神秘技巧。(文：life_is_good@YDY) Secret World of Fireworks explores the closely held secrets, recipes, and techniques from the world of pyrotechnic showmen. National Geographic takes a behind the scenes look into this exclusive world with unique access from Zambelli Internationale of New Castle, Pennsylvania - Americas First Family of Fireworks - along with rocket scientists and chemists from Los Alamos, New Mexico. 代码 File size: 1.09 GiB Duration: 46mn 56s Overall bit rate: 3,330 Kbps Video Video Format: AVC Video Format profile: High@L4.1 Video Format settings, CABAC: Yes Video Format settings, ReFrames: 5 frames Video Muxing mode: Container profile=Unknown@4.1 Video Codec ID: V_MPEG4/ISO/AVC Video Duration: 46 mins Video Bit rate: 2,880 Kbps Video Nominal bit rate: 2,947 Kbps Video Width: 1,280 pixels Video Height: 720 pixels Video Display aspect ratio: 16:9 Video Frame rate: 25.000 fps Video Resolution: 8 bits Video Colorimetry: 4:2:0 Video Scan type: Progressive Video Bits/(Pixel*Frame): 0.125 Video Stream size: 967 MiB (86%) Video Writing library: x264 core 96 r1613 81e75e9 Audio Format: AC-3 Audio Codec ID: A_AC3 Audio Duration: 46 mins Audio Bit rate mode: Constant Audio Bit rate: 384 Kbps Audio Channel(s): 6 channels Audio Channel positions: Front: L C R, Side: L R, LFE Audio Sampling rate: 48.0 KHz Audio Stream size: 129 MiB (12%) Audio Language: English Encoded by: OneDDL