Video Recording. 1  4K video recording at 30 fps. 2  1080p HD video recording at 30 fps or 60 fps. 3  720p HD video recording at 30 fps.  Optical image stabilisation for video (iPhone 6s Plus 1  only) True Tone flash.  Slow-motion video support for 1080p at 120 fps and 720p at 240 1  fps. Time-lapse video with stabilisation.
Trans-Siberian Railway. Stretching just shy of ten thousand kilometres across the vast expanse of Russia from Moscow to the Pacific port of Vladivostok, the Trans-Siberian Railway is so much more than just a mode of transport.
While both systems use energy in converting higher voltage AC from the USSR's power grid to lower voltage DC, the conversions for the DC system all took place (at higher efficiency) in the railway substation, while most of the conversion for the AC system took place inside the locomotive (at lower efficiency).