Internet History & Chemistry Quiz

Nitrous Oxide is commonly known as laughing gas because it causes euphoria and laughter when inhaled. It has been used as an anesthetic and pain reliever in medical and dental procedures for over a century.

Sulphuric acid was historically called 'Oil of Vitriol' and is commonly found in car batteries. It earned this name due to its oily appearance and the Latin word 'vitriol' meaning glassy or corrosive substances.

The chemical symbol 'Cr' stands for Chromium, atomic number 24 on the periodic table. Carbon is 'C', Chlorine is 'Cl', and Curium is 'Cm'. Chromium is a transition metal known for its corrosion resistance and use in stainless steel.

The chemical symbol 'Ca' stands for Calcium, atomic number 20 - an alkaline earth metal essential for biological functions. Californium is 'Cf', Cadmium is 'Cd', and 'Carolium' is not a real element. Calcium is abundant in limestone, bones, and dairy products.

The chemical symbol 'Tl' represents Thallium, atomic number 81 - a soft post-transition metal. Thorium is 'Th', Thulium is 'Tm', and 'Thandrium' is fictional. Thallium was named from Greek 'thallos' meaning green shoot, due to its green spectral line.

Titanium has the chemical symbol 'Ti', derived from the Titans of Greek mythology. It's a strong, lightweight metal used in aircraft, spacecraft, and medical implants. Tin has symbol 'Sn' (stannum).

Mercury has the symbol 'Hg' from its Latin name 'hydrargyrum' meaning 'liquid silver'. It's the only metal that's liquid at room temperature and was historically used in thermometers and barometers.

Nickel has the chemical symbol 'Ni'. It's a silvery-white metal used in coins, stainless steel, and batteries. Neon (Ne), Niobium (Nb), and Nitrogen (N) have different symbols.

Uranium has the chemical symbol 'U'. It's a radioactive element used as fuel in nuclear power plants and in nuclear weapons. Ununtrium and Ununquadium are temporary names for other elements.

Selenium has the chemical symbol 'Se'. It's a nonmetal essential for human health in trace amounts and used in electronics. Strontium (Sr), Xenon (Xe), and Seaborgium (Sg) are different elements.

Praseodymium has the symbol 'Pr', a rare earth element used in high-strength alloys and magnets. Phosphorus is 'P', Protactinium is 'Pa', and Promethium is 'Pm'.

Ra is the standard chemical symbol for Radium (atomic number 88), a radioactive alkaline earth metal. Radon uses Rn, Rhodium uses Rh, and Antimony uses Sb.

Ar is the chemical symbol for Argon (atomic number 18), a noble gas. Arsenic uses As, Silver uses Ag, and Americium uses Am.

Ac is the chemical symbol for Actinium (atomic number 89), a radioactive element. Arsenic uses As, Americium uses Am, and Cobalt uses Co.

ARPANET (Advanced Research Projects Agency Network) was the precursor to the modern Internet. Developed in the late 1960s, it was the first wide-area packet-switching network.

The first message sent on ARPANET was 'LO' - the system crashed before 'LOGIN' could be completed. This occurred during a connection between UCLA and Stanford on October 29, 1969.

Lynx is a text-based web browser that runs in character mode (terminal) without a GUI. It's used in Unix/Linux systems and is ideal for low-bandwidth situations or accessibility needs.

Archie (1990) was the first search engine, designed to index FTP archives. It preceded Veronica, Jughead, and other early search tools that came with the World Wide Web.

The first internet address used by TCS for emails was tcsinternet.tcs.ernet.in. ERNET (Education and Research Network) was India's early internet infrastructure, and .tcs.ernet.in was the domain used before commercial domains became common. The other options like tcs.co.in or tcs.com are modern commercial domains that came later.

The first internet address used by TCS for emails was tcsernet.tcs.ernet.in. ERNET (Education and Research Network) was India's early internet infrastructure in the 1980s-90s. The tcs.ernet.in subdomain was used before commercial domains like tcs.co.in became available.