Science & Technology General Knowledge

Sunlight takes approximately 8 minutes and 20 seconds (500 seconds) to travel from the Sun to Earth, based on Earth's average distance of 149.6 million km and light speed of 299,792 km/s. This is why we see the Sun as it was 8 minutes ago.

Larry Ellison co-founded Oracle Corporation in 1977 with Bob Miner and Ed Oates. Bill Gates founded Microsoft, Larry Page co-founded Google, and Steve Wozniak co-founded Apple.

Sulfuric acid (H2SO4) is called the 'King of chemicals' because of its immense industrial importance and widespread use in manufacturing. It's the most-produced industrial chemical worldwide and a key indicator of a country's industrial development.

A rhino's horn is made of keratin, the same protein found in human hair and fingernails. It's not bone, teeth, or muscle. The horn grows continuously and can be partially sawn off without harming the rhino, which is why poaching is such a threat.

Louis Pasteur discovered microbes in air through his famous swan-neck flask experiments in the 1860s, disproving spontaneous generation. Robert Koch (misspelled as 'Kooch') worked with Pasteur on germ theory, and Aristotle lived before microbes were known.

Apple Corporation introduced the mouse to the mass market with the Apple Lisa in 1983 and popularized it with the Macintosh in 1984. While Xerox PARC developed the mouse prototype, Apple was the first to commercially introduce it. IBM, Oracle, and Sun Microsystems did not introduce the mouse.

Ada Lovelace wrote the first algorithm intended to be processed by a machine, making her the first programmer. She worked on Charles Babbage's Analytical Engine in the 1840s and published notes that included what is considered the first computer program.

Dry ice is solid carbon dioxide (CO2) that sublimates (transitions directly from solid to gas) at -78.5°C. It is called 'dry' because it does not melt into a liquid like regular ice.

Nanotechnology operates at the molecular and atomic scale, typically between 1-100 nanometers. It involves manipulating materials at the nanoscale to create structures with novel properties.

ASIMO was Honda's famous humanoid robot developed from 2000-2018. It was designed for human-robot interaction and could walk, run, and perform tasks like serving drinks.

Sunlight takes approximately 8 minutes and 20 seconds (about 500 seconds) to travel 150 million kilometers from the Sun to Earth. This is calculated by dividing the Earth-Sun distance by the speed of light (300,000 km/s).

The tongue is often cited as the strongest muscle for its size and endurance. While the masseter (jaw muscle) can generate more force based on weight, the tongue works constantly without fatigue and is exceptionally strong relative to its size, making it the expected answer in general knowledge quizzes.

The Milky Way is a barred spiral galaxy, which is a type of spiral galaxy. 'Flat spiral' is the closest accurate description among the options. Spiral galaxies have a flat, rotating disk with spiral arms, which distinguishes them from round balls, doughnuts, or pretzels.

Sharks are cartilaginous fish, meaning their skeletons are made of cartilage rather than bone. This distinguishes them from bony fish (osteichthyes). Sharks do have teeth, gills, and a liver - the latter being large and oil-filled for buoyancy.

Mercury is unique among metals in that it is liquid at room temperature. Its melting point is -38.83°C (-37.89°F), so it exists as a liquid under normal conditions. Mercury is not the hardest metal (that would be diamond-like materials), is not highly radioactive, and is not used in aircraft construction.

Coal is composed primarily of carbon. Under extreme pressure and high temperature over geological time, the carbon atoms rearrange into a crystal lattice structure, forming diamonds. This process occurs deep within the Earth's mantle. Graphite is also formed from carbon but under different conditions.

The scientific consensus, supported by extensive evidence including the iridium anomaly and Chicxulub crater, is that a massive meteorite impact approximately 66 million years ago caused the Cretaceous-Paleogene extinction event. This impact created environmental conditions that non-avian dinosaurs could not survive.