However with the introduction of lighter weight and more flexible plastic substrate magnetic tapes, combined with a vacuum column to control the tension that the magnetic tape experiences during use, the IBM 726 was a prototype of the modern digital tape recording system.

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The building had tested negative three times previously for anthrax, but workers from the Centers for Disease Control and Prevention used a special vacuum with a filter developed to detect even the most minute amounts of the deadly bacteria.

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Before leaving, he did not formally place Vice-President Goodluck Jonathan in control of the government, essentially creating a power vacuum without any clear succession plan.

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In the plant's control room, Penrice's workers watch crystals form on the outside of a vacuum-drum filter.

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