1) Use a charged strip of gold foil placed between charged metal plates. The foil will be attracted to the opposite charge. 2) Use grains of a material such as semolina - the material lines up in the electric field.
There are two basic types of life insurance beneficiaries: Primary beneficiary: The primary beneficiary is the person (or persons) who will receive the proceeds of the life insurance policy when the insured person dies. However, the primary beneficiary will not receive any proceeds if he or she dies before the death of the named insured.
A third-party beneficiary, in the law of contracts, is a person who may have the right to sue on a contract, despite not having originally been an active party to the contract. This right, known as a ius quaesitum tertio, arises when the third party (tertius or alteri) is the intended beneficiary of the contract, as opposed to a mere incidental beneficiary (penitus extraneus).