82 results for: Aerospace
SPEEA strike sign, 2000
On February 9, 2000, more than 17,000 engineers and technicians from the Society of Professional Engineering Employees in Aerospace (SPEEA) walked out of Boeing plants across the country. Organized in 1946, SPEEA is an affiliated local union of the International Federation of Professional and Technical Engineers (IFPTE), AFL-CIO, and this was the first major strike for the engineers' organization. After…
ID Number:2025.SPEEA.2
Date:2000
Thacher's calculating instrument (cylindrical slide rule) by Keuffel & Esser, 1881
Edwin Thacher, a civil engineer, invented this device in 1881. It is a mechanical cylindrical slide rule designed for rapid and accurate calculations, particularly for engineers and architects. The inner cylinder slides and rotates freely inside the outer cage-like cylinder. The measurements and scales are more accurate than standard slide rules, and the metal construction protects it from moisture and…
ID Number:2026.5.1
Date:1881