1) The fastest recorded serve in tennis was achieved by Sam Groth at 163.7 miles per hour (263.4 kilometers per hour) during a tournament in 2012.

2) The role of the judiciary is to interpret laws, resolve disputes, and ensure justice in accordance with legal principles and the constitution. It serves as a check on the executive and legislative branches of government.

3) The concept of 3D printing, also known as additive manufacturing, was first introduced in the 1980s and has since revolutionized prototyping and small-scale production.

4) Coffee is one of the most widely consumed beverages in the world, made from the roasted seeds of the Coffea plant. It is known for its stimulating effects due to its caffeine content and is enjoyed in various forms, including espresso, cappuccino, and latte. The cultivation and preparation of coffee have evolved into an art form, with different regions and methods producing unique flavors and profiles, offering a diverse range of experiences for coffee lovers.