#containers

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What a software container packages and isolates

A software container runs an application with a defined filesystem and dependencies while using operating-system isolation features. Ordinary containers share the host's kernel rather than each running a separate kernel. They can make environments more consistent, but they do not remove every difference between computers.

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objects

How an aerosol can produces a spray

An aerosol can stores its contents under pressure. Pressing the button opens a valve, allowing that pressure to drive material through a small nozzle that breaks it into droplets. Many designs use a propellant and a dip tube reaching into the liquid, though the internal arrangement varies by product.

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