Science & Technology Trivia

Koala bears have fingerprints remarkably similar to human fingerprints, with distinct patterns of ridges and whorls. This is an evolutionary adaptation for gripping eucalyptus branches while climbing. Cats have paw pads with different patterns, squirrels have non-finger grip pads, and parrots have scaled feet without fingerprints.

Surface tension creates a thin 'skin' on water due to cohesive forces between water molecules at the surface. Mosquitoes are lightweight and their legs distribute weight over a large area, preventing them from breaking this surface layer. Buoyancy would require displacing water, which mosquitoes do not do when floating.

Shiv Nadar, founder of HCL Technologies, hails from Moolaipozhi village in Tirunelveli district of Tamil Nadu. He established the SSN Trust in 1994 to develop educational institutions in India and received the Padma Bhushan in 2008 for his contributions to IT industry and education.

Radiometric dating techniques like carbon dating use the predictable decay of radioactive isotopes to determine the age of organic fossils. By measuring the remaining radioactive material in a fossil and comparing it to the known half-life, scientists can calculate how long ago the organism died.

Agilent Technologies was spun off from HP in 1999 as a separate company focused on test and measurement, healthcare, and chemical analysis. The company inherited HP's non-computer businesses including electronic test equipment, scientific instruments, and semiconductor products. Cisco, APC, and Symbiosis were unrelated entities.

Lightning strikes exhibit fractal-like patterns with branching structures that repeat at different scales. This branching behavior is characteristic of fractal geometry, where similar patterns recur at progressively smaller scales. The jagged, tree-like appearance of lightning is a classic example of natural fractals.

This appears to be a duplicate of the previous question about lightning having fractal shapes. Lightning's branching, tree-like structure is indeed a classic example of fractal geometry in nature, with patterns that repeat at different scales.

Yahoo was the company known for aggressive acquisitions, starting with Four11 in 1997, followed by GeoCities, eGroups, Inktomi, and Konfabulator. These acquisitions helped Yahoo expand its services in web hosting, email, search, and desktop widgets. Apple, IBM, and Microsoft had different acquisition strategies.

Escape velocity is the minimum speed needed to break free from a planet's gravitational pull without further propulsion. For Earth, this is approximately 7 miles per second (about 11.2 km/s). The other options (14, 20, and 25 miles per second) are all incorrect and significantly higher than the actual escape velocity.

Viper venom must enter the bloodstream to cause harm - it is a protein-based toxin that affects blood circulation and tissue. When it remains outside the circulatory system (on skin, in a wound, or swallowed), it is typically broken down by digestive enzymes or cannot reach vital organs. Swallowing venom (B) is generally safe unless you have open wounds, killing the snake (C) doesn't neutralize existing venom, and immediate treatment (D) is only relevant if already injected.

Hydrogen peroxide bubbles when applied to wounds because the enzyme catalase, present in blood and damaged tissue cells, breaks down H2O2 into water and oxygen gas. This creates the visible bubbling. Options A and D are incorrect - the bubbles are not from 'killing germs' or merely from 'contact with blood.' Option B is false - it doesn't always bubble (intact skin has no catalase exposure).

A 'blue moon' is the second full moon occurring within a single calendar month. This happens approximately every 2-3 years because the lunar cycle is 29.5 days while most months are 30-31 days. Options A, B, and D are incorrect - it's not about cold/cloudy nights (A), has no relation to rarity meaning 'never' (B), and there's no such thing as 'blue moon dust' (D).

The Great Red Spot is a massive anticyclonic storm on Jupiter that has been observed for over 300 years. It is a high-pressure weather system wider than two Earths, not a planet, sunspot, or solar system.

Hotmail was launched on July 4, 1996, chosen to symbolize freedom from ISP-based email services. It was one of the first webmail services allowing users to access email from anywhere via a browser, and was funded by Draper Fisher Jurvetson before being acquired by Microsoft.

Dry ice (solid carbon dioxide) was first discovered in 1825 by French chemist Charles Thilorier. He observed that pressurizing liquid carbon dioxide caused it to solidify, creating what we now know as dry ice.

CO2 is the chemical formula for carbon dioxide, a compound consisting of one carbon atom bonded to two oxygen atoms. Nitrogen is N2, Calcium is Ca, and 'Citrius' is not a valid chemical name. Carbon dioxide is a greenhouse gas and product of respiration and combustion.

CH3COOH is the molecular formula for acetic acid, the main component of vinegar. It consists of a methyl group (CH3) bonded to a carboxyl group (COOH). Vinyl Acetate is C4H6O2, Chloroform is CHCl3, and 'Methanic Acid' is not a standard chemical name (formic acid is HCOOH, also called methanoic acid).