By placing a tiny droplet of silicon oil in the nozzle the researchers are able to prevent the ink from crusting up.

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M-5 rocket last month seems to have been caused by a damaged graphite nozzle in the first-stage engine.

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Static electricity could cause a small spark when a petrol pump nozzle is inserted which could in turn ignite fuel vapour in a flash fire.

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This involves shredding all of an organism's genetic material into pieces in one go by spraying it through a fine nozzle, and then sequencing the pieces without knowing where they came from.

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