Numbers in the News

HEIGHT in inches of the world’s smallest humanoid robot, which was built by four teens in Hong Kong in February. They hope their robot will become a low-cost educational tool for students.

^{Source: Guinness World Records}

SPEED LIMIT that the Italian city of Bologna began enforcing on most streets in January, down from 30 mph. Many residents are unhappy with the change, which has sparked protests.

^{Source: The New York Times}

PRICE of one of the last letters ever signed by Abraham Lincoln, recently listed for sale by a historical document site. The 16th president signed the letter three days before his assassination in 1865.

^{Source: The Guardian}