I think it is the Microscope. Robert Hooke was a scientist who came up with the law of elasticity, the Hooke's law as well his pioneering work using the microscope to document observations of a variety of samples in his book. Hook published a book Micrographia, an accurate and detailed record of his observations through his microscope.
Entrepreneurship. Hope this helps
1.What gas were British World War Two barrage balloons filled with?
The top of the balloon was filled with hydrogen, the bottom half was left empty so when it was put up at a certain height it filled with natural air.
2.Who was the United States Ambassador to Czechoslovakia between 1989 and 1992?
Shirley Temple Black was the 27th United States Ambassador to Czechoslovakia
3.Name the main character in cartoonist Chic Young's long-running comic strip Blondie?
Dagwood Bumstead and Blondie Bumstead
4.Who bought Dodington Park, in Gloucestershire, in 2003 for a price believed to be £20 million?
It was bought in 2003 by the British inventor and businessman James Dyson.
5.What is a clerihew? A short comic or nonsensical verse, typically in two rhyming couplets with lines of unequal length and referring to a famous person.
I hope this helped! ;)