general knowledge Online Quiz - 2689

Computer mouse movement speed is measured in 'mickeys' per inch in some technical contexts. A mickey is a unit of measurement representing the minimum amount of movement that can be detected by the mouse sensor. This is a play on words referencing Mickey Mouse.

Theodore Roosevelt became the youngest president in U.S. history at age 42 after President William McKinley was assassinated in 1901. John F. Kennedy was the youngest person elected president (at 43), but TR was the youngest to assume the office. Option C has a typo - should be Jimmy Carter, not Crater.

Strawberries are unique because their 'seeds' (actually called achenes - dry fruits) are on the outside of the fleshy receptacle that we eat. Each strawberry has around 200 achenes on its surface. Most other fruits have their seeds protected inside the fruit flesh.

Let Jack's sales be J. Then Jill's sales are 2J - 3 (3 less than twice Jack's). Together they made 36 sales, so J + (2J - 3) = 36. This simplifies to 3J - 3 = 36, so 3J = 39, meaning J = 13. Jack made 13 sales and Jill made 23 sales, which totals 36.

The hour and minute hands cross 11 times in every 12-hour cycle. Between noon and midnight (excluding the endpoints), they cross exactly 10 times at approximately 1:05, 2:11, 3:16, 4:22, 5:27, 6:33, 7:38, 8:44, 9:49, and 10:55.

In boxing, judges score each round independently and the cumulative score is not revealed until the contest ends. Neither the fighters nor the spectators know who is ahead during the bout.

Niagara Falls experiences erosion at its base, causing the falls to gradually retreat upstream. The edge moves backward through rock erosion, making it a landmark that constantly shifts its position.

Baron Von Drais invented the first bicycle called the running machine in 1817. It had no pedals and was pushed by feet. Patrick Mcmillan, Pierre Jean, and Andre Wan Drais are not correct historical figures for bicycle invention.

Gottlieb Daimler invented the first motorcycle in 1885. His design attached an internal combustion engine to a bicycle. John Maybach, Andre Yamaha, and Sylvester Howard are not the correct inventors.

Paul Cornu made the first successful free helicopter flight in 1907 in France. His aircraft lifted off and hovered briefly. While Leonardo da Vinci designed early helicopter concepts, and the Wright brothers worked on airplanes, Cornu achieved the first actual flight.

James Watt invented the modern steam engine in the late 18th century. His improved design made steam engines practical for industrial use. The options James Watt and James Watts refer to the same person, while Francois Isaac De Rivaz worked on internal combustion engines.

Rudolf Diesel invented the diesel engine in the 1890s. His engine used compression ignition instead of spark ignition. Karl Benz worked on gasoline automobiles, while George Schlichten and Christian Carl are not associated with diesel engine invention.

The Commonwealth of Independent States (CIS) headquarters is in Minsk, Belarus. The CIS was formed in 1991 after the dissolution of the Soviet Union. Moscow was the USSR capital, Kiev is in Ukraine, and Kistiner is not a major city in Moldova.

Ocean basin topography knowledge comes from multiple complementary technologies: seismic surveying uses sound waves to map sub-seafloor structures; echo sounders measure water depth by timing sound pulse returns; and side-scan sonar creates detailed images of seafloor features. Together, these methods provide comprehensive data about underwater mountain ranges, trenches, plateaus, and other bathymetric features essential for understanding ocean basin geology and geography.

Land-sea distribution significantly influences global atmospheric circulation patterns. The differential heating between continents and oceans creates thermal contrasts that shape major pressure belts, affecting the general circulation of the atmosphere. Additionally, these contrasts influence the formation and development of mid-latitude cyclonic depressions at convergence zones between polar and subtropical air masses, particularly along frontal boundaries where contrasting air masses meet.

Hunting and gathering economies have very low population density because they depend on naturally available food resources rather than agricultural production. Studies of contemporary and historical hunter-gatherer societies show densities typically around 0.5 to 1 person per square kilometer in favorable environments, and even lower in marginal areas. This low density is necessary to avoid depleting wild food sources and to allow sustainable resource use over large territories.

The Gulf of Mexico is the world's largest gulf, covering approximately 1.5 million square kilometers (600,000 square miles). It is bordered by the United States, Mexico, and Cuba. While the Persian Gulf is commercially significant for oil transport and the Gulf of Carpentaria is notable for Australia, the Gulf of Mexico's surface area and geographic dimensions make it the largest gulf globally. The Gulf of Mannar, between India and Sri Lanka, is much smaller.

The tropical year (time between successive spring equinoxes) is slowly decreasing due to both gradual changes in Earth's rotational speed and small changes in Earth's orbit around the Sun. Earth's rotation is very gradually slowing due to tidal friction from the Moon, and orbital parameters undergo cyclical variations (Milankovitch cycles) including changes in eccentricity, axial tilt, and precession. These combined effects cause the measured tropical year length to decrease very slightly over long timescales.

Puncak Jaya (also known as Carstensz Pyramid) in Papua province, Indonesia, is the highest mountain peak in Oceania at 4,884 meters (16,024 feet). While Mt. Kosciusko (2,228 m) is the highest peak in mainland Australia and Mt. Victoria (4,072 m) is in Papua New Guinea, Puncak Jaya's elevation exceeds these. Mt. Cook (3,724 m) in New Zealand's South Island, while significant, is not the highest in the Oceania region. Puncak Jaya is part of the Sudirman Range in the western central highlands of Papua.