I looked, and behold, four wheels beside the cherubim, one wheel beside one cherub, and another wheel beside another cherub and the appearance of the wheels was like a beryl stone.

And when I looked, behold the four wheels by the cherubims, one wheel by one cherub, and another wheel by another cherub and the appearance of the wheels was as the colour of a beryl stone.

Most modern magnetic tape systems use reels that are much smaller than the 10.5 inch open reels and are fixed inside a cartridge to protect the tape and facilitate handling.

After extensive research, the engineering team developed a 4 1 16 ratio pulley system where each of the 4 corners of the span was connected to two 25 ton winches (bolted to the pavement of the deck).