Light pollution can come from TV and computer screens, other electronic displays and ambient sources such as streetlights, passing traffic and neighboring buildings, in addition to overhead lighting within the home.
Cold-ironing allows ships at dock to plug into shore-side electricity sources to power electronic and mechanical systems needed for loading and unloading activities.
In consequence, it is now necessary for journalists to be equipped to better protect their electronic information records, including the identities of their sources.
Apple sources a hard-to-replace electronic compass and battery from Japan for its newest tablet. iSuppli adds it may also source the advanced technology glass in the display from the country.