A1 - Dustbuster
B2 - Digital Watch
C3 - Easy-Bake Oven
D4 - Pocket Calculator
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Answer: The history of the Dustbuster holds an intriguing connection to NASA and the iconic moon landing. In the early 1960s, as NASA geared up for the Apollo missions, there arose a pressing need for power tools that could be safely operated in space. NASA’s engineers were particularly concerned about cords, which could easily entangle astronauts in the weightlessness of zero gravity. NASA turned to Black & Decker, a renowned manufacturer of household appliances to create these tools. Black & Decker would eventually develop a lightweight handheld vacuum which would become known as the "Dustbuster."
Also -
Georgia O'Keeffe was an American modernist artist known for her captivating paintings featuring enlarged flowers, New York skyscrapers, and landscapes of New Mexico.
A landmark moment in art history unfolded in 2014 when O'Keeffe's masterpiece, "Jimson Weed/White Flower No.1," was sold for $44.4 million, securing its place as the most expensive artwork created by a female artist ever sold at auction.
This groundbreaking sale eclipsed the previous record set by Joan Mitchell’s painting "Untitled," which sold earlier that year for $11.9 million.
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