PBS Nova - Ancient Computer (2013)
PBS Nova - Ancient Computer (2013)
HDTV | 1280x720 | MP4/x264 @ 2959 Kbps | 53mn | Audio: English AAC 128 kbps, 2 channels | Subs: None | 1.15 GB
Genre: Documentary
HDTV | 1280x720 | MP4/x264 @ 2959 Kbps | 53mn | Audio: English AAC 128 kbps, 2 channels | Subs: None | 1.15 GB
Genre: Documentary
In 1900, a storm blew a boatload of sponge divers off course and forced them to take shelter by the tiny Mediterranean island of Antikythera. Diving the next day, they discovered a 2,000 year-old Greek shipwreck. Among the ship's cargo they hauled up was an unimpressive green lump of corroded bronze. Rusted remnants of gear wheels could be seen on its surface, suggesting some kind of intricate mechanism. The first X-ray studies confirmed that idea, but how it worked and what it was for puzzled scientists for decades. Recently, hi-tech imaging has revealed the extraordinary truth: this unique clockwork machine was the world's first computer. An array of 30 intricate bronze gear wheels, originally housed in a shoebox-size wooden case, was designed to predict the dates of lunar and solar eclipses, track the Moon's subtle motions through the sky, and calculate the dates of significant events such as the Olympic Games. No device of comparable technological sophistication is known from anywhere in the world for at least another 1,000 years. So who was the genius inventor behind it? And what happened to the advanced astronomical and engineering knowledge of its makers? NOVA follows the ingenious sleuthing that finally decoded the truth behind the amazing ancient Greek computer.
More info
Video
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Duration : 53mn 18s
Bit rate mode : Variable
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Height : 720 pixels
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Scan type : Progressive
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Tagged date : UTC 2013-04-05 20:59:07
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Audio
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Stream size : 48.6 MiB (4%)
Encoded date : UTC 2013-04-05 20:59:05
Tagged date : UTC 2013-04-05 20:59:07
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 6 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 53mn 18s
Bit rate mode : Variable
Bit rate : 2 959 Kbps
Maximum bit rate : 17.4 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 26.781 fps
Minimum frame rate : 5.994 fps
Maximum frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.120
Stream size : 1.10 GiB (96%)
Writing library : x264 core 130
Encoding settings : cabac=1 / ref=6 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / psy_rd=2.00:1.00 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-4 / threads=3 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=9 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=21.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Tagged date : UTC 2013-04-05 20:59:07
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 53mn 19s
Bit rate mode : Variable
Bit rate : 127 Kbps
Maximum bit rate : 174 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 48.6 MiB (4%)
Encoded date : UTC 2013-04-05 20:59:05
Tagged date : UTC 2013-04-05 20:59:07
PBS Nova - Ancient Computer (2013)
PBS Nova - Ancient Computer (2013)
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