Science, Technology & Inventions Quiz

Martin Cooper invented the first handheld mobile phone in 1973 while working at Motorola, and made the first public call on a prototype in New York City. His invention revolutionized personal communication by making telephones truly portable for the first time.

Brahmagupta, a 7th-century Indian mathematician, was the first to formally define zero as a number and establish rules for arithmetic operations involving it. While other cultures used placeholder symbols, Brahmagupta treated zero as a number in its own right with specific mathematical properties.

John Shepherd-Barron invented the first automated teller machine (ATM) in 1967, which was installed by Barclays Bank in London. His invention was inspired by a chocolate vending machine and allowed customers to access cash outside of normal banking hours for the first time.

John Shepherd-Barron invented the first automated teller machine (ATM) in 1967, which was installed by Barclays Bank in London. His invention was inspired by a chocolate vending machine and allowed customers to access cash outside of normal banking hours for the first time.

Larry Page and Sergey Brin founded Google in 1998 while they were Ph.D. students at Stanford University, developing a revolutionary search engine based on their PageRank algorithm. Their creation became the world's most widely used search engine and transformed how people access information on the internet.

The Hubble Space Telescope (launched 1990) is NASA's most famous and iconic space telescope. It has produced groundbreaking images and discoveries for over 30 years. The James Webb Space Telescope is newer and more powerful, but Hubble remains the most famous historically.

The first iPhone was released on June 29, 2007. Apple announced it in January 2007 and it became available for sale later that year, making 2007 the correct year.

Pizza Hut was founded in 1958 in Wichita, Kansas, USA by brothers Dan and Frank Carney. The franchise started in the United States before expanding globally.

The three R's of recycling are Reduce, Reuse, and Recycle - in that order of priority. Reduce means consuming less, Reuse means finding new uses for items instead of discarding them, and Recycle means processing waste materials into new products.

The Nile River is traditionally recognized as the longest river in the world at approximately 6,650 km, flowing through northeastern Africa. While there is some scientific debate about whether the Amazon River might be longer, the Nile is the accepted answer in most educational contexts. The Indus, Brahmaputra, and Ganga are all major rivers but significantly shorter.

Prime numbers are integers greater than 1 that have exactly two factors: 1 and themselves. After 7, the next integer is 8 (not prime, divisible by 2), then 9 (not prime, divisible by 3), then 10 (not prime, divisible by 2 and 5). The number 11 is prime because its only factors are 1 and 11. While 13 is also prime, it is not the next prime after 7.

Ganymede is the largest moon in our solar system and orbits Jupiter. It was discovered by Galileo in 1610 and is one of the four Galilean moons of Jupiter. Ganymede is larger than the planet Mercury and is the only moon known to have its own magnetic field.

Human beings have never set foot on Mars. While robotic missions like rovers and landers have successfully explored Mars, all human space missions to date have been limited to the Moon (Apollo missions) and low Earth orbit (International Space Station). No human has traveled beyond the Moon's orbit.

Spiders are arachnids, a class of arthropods that characteristically have 8 legs. This distinguishes them from insects, which have 6 legs. All spiders share this anatomical feature regardless of their species or size. The 4-leg and 6-leg options are incorrect for spiders.

A thermometer is a scientific instrument designed to measure temperature. It works on principles like thermal expansion of liquids (mercury or alcohol) or electrical resistance changes. Hygrometers measure humidity, barometers measure pressure, and rulers or tape measures measure length.

A light year is a unit of distance, specifically the distance that light travels in one year in vacuum (approximately 9.46 trillion kilometers or 5.88 trillion miles). It is commonly used to measure astronomical distances between stars and galaxies. It does not measure energy, speed, or intensity.