Radiology Support Devices (RSD) and its predecessor companies owe their specialty of duplicating the human body to the fact that a former wife of the founder of these companies, Samuel W. Alderson, was always late for appointments.

As a result of this experience in duplicating the human body, his new company entered this field more broadly, pioneering dummies for testing military-aircraft ejection-seats. His company then received a contract from a major aircraft company to develop special dummies to test the survivability of the Command Module of Project Apollo. The contract became more complicated when it was found that the Command Module could not be relied upon to survive a ground landing, and its work statement had to be changed to permit a splash-down landing.

1904 E Dominguez St,
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