cog

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Srinivasa Ramanujan, Indian mathematician and autodidact.

6 Interesting Facts about Srinivasa Ramanujan

Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland

The Largest Islands in the World

Entrants falling and tumbling over while chasing the cheese at the 2016 'Cheese Rolling' held at Cooper's Hill, in the Cotswolds, Brockworth England

7 of the World’s Most Dangerous Festivals

Stylish light blue jeans on wooden background, closeup of inset pocket

Why Do Jeans Have That Tiny Pocket?

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Panama Canal infographic

Timeline and Map of the Panama Canal

Monitor. Varanus salvadorii is a monitor lizard found in New Guinea can grows to 2.7 metres (9 ft.) aka Tree crocodile, Crocodile monitor, Salvadori's monitor, artellia, reptile

7 of the World’s Most Dangerous Lizards and Turtles

cog

ship

Learn about this topic in these articles:

ship history and development

In ship: 17th-century developments
…by another Venetian ship, the cog. A buss of 240 tons with lateen sails was required by maritime statutes of Venice to be manned by a crew of 50 sailors. The crew of a square-sailed cog of the same size was only 20 sailors. Thus began an effort that has…
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