Excel, SAP, Oracle & automation tips — plus wacky facts
Fun facts, odd science and surprising history.
Fun facts, odd science and surprising history.
📄 42 articles⬇️ 1 with practice files🕒 Updated 12 Nov 2026
India has the second-lowest sleep quality in the world. This evidence-based guide explains the biology of sleep, the specific disruptors affecting Indians (late dinners,…
Read article →Most pencils are yellow because a premium brand painted its pencil that way in the late 1880s and rivals copied it. What is documented,…
Read article →In the 19th century the British ran a customs line across India — much of it a dense thorn hedge — to stop untaxed…
Read article →India drives on the left because of British rule — but the deeper reason may go back to riders keeping their sword hand free.…
Read article →India adopted the ₹ symbol in 2010 after a national design competition. Who designed it, what the shape means, and how it reached keyboards…
Read article →On 26 June 1974 a pack of Wrigley's Juicy Fruit gum became the first product sold by scanning a UPC barcode. How barcodes work…
Read article →Mars is red because its surface dust is rich in iron oxide — rust. How the rust formed, why the sky on Mars is…
Read article →Until the 1800s every town kept its own time by the Sun. Railways and telegraphs made that chaotic, leading to standard time and, in…
Read article →Active noise cancellation listens to outside sound with tiny microphones and plays the exact opposite wave so the two cancel out. Why it works…
Read article →Each popcorn kernel is a tiny pressure cooker: water inside turns to steam behind a tough hull until it bursts at around 180°C and…
Read article →Yellow, green, black-and-white and orange milestones tell you what kind of road you are on in India — national highway, state highway, district road…
Read article →The old "yawning brings in oxygen" idea doesn't hold up. What scientists think yawning is for — brain cooling, alertness — and why seeing…
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