1) Who was the first Speaker of the House to go on to become President?
2) For what purpose was the screwdriver first used?
3) What is the minimum age requirement for a person to have a Facebook account?
4) Tim Berners-Lee was awarded the prestigious Millennium Technology Prize in 2002 for having come up with this innovation, now used regularly by billions of people.
Answers:
1) James K. Polk is the only president who was once the Speaker of the House before becoming President of the United States.
2) The first documentation of the tool is in The Medieval Housebook of Wolfegg Castle, a manuscript written sometime between 1475 and 1490.
These earliest screwdrivers had pear-shaped handles and were made for
slotted screws (diversification of the many types of screwdrivers did
not emerge until the Gilded Age).
The screwdriver remained inconspicuous, however, as evidence of its
existence throughout the next 300 years was based primarily on the
presence of screws.
Screws were used in the 15th century for constructing screw-cutting
lathes, for securing breastplates, backplates, and helmets on medieval jousting armor, and eventually for multiple parts of the emerging firearms,
particularly the matchlock. Screws, hence screwdrivers, were not used
in full combat armor, most likely to give the wearer freedom of
movement.3) You have to be at least 13 to create a Facebook account.
4) Berners-Lee hit upon the notion of joining hypertext with the Internet. He says, "I just had to take the hypertext idea and connect it to the Transmission Control Protocol and domain name system ideas and—ta-da!—the World Wide Web."
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