Arecibo Observatory (sh) and Accidental (law)

Arecibo Observatory (sh)

Astronomical observatory near Arecibo, P.R., site of the world's largest single-unit Radio telescope (as opposed to multiple telescope interferometers such as the Very Large Array).

The telescope dish, 1,000 ft (300 m) across, is built into a valley; celestial sources are tracked across the sky by moving secondary structures suspended about 500 ft (150 m) above the dish. The observatory has produced detailed radar maps of the surface of Venus and near-Earth asteroids (see Earth-crossing asteroid), made detailed studies of Earth's ionosphere, and made major contributions to studies of pulsars and hydrogen gas in galaxies.

Accidental (law)

Death and Dismemberment Coverage Coverage that will pay you, your family members, a set amount, under the terms of the policy, for certain serious injuries or death resulting from an accident while in your car.

Others:

Death and Dismemberment Insurance A policy that pays the beneficiaries a fixed death benefit but only if the insured person dies in or from a covered accident. Sometimes the policies pay extra benefits if the death occurred while a passenger on a common c

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