The compass Ancient mariners navigated by the stars, but that method didn’t work during the day or on cloudy nights, and so it was unsafe to voyage far from land. The Chinese invented the first compass sometime between the 9th and 11th century; it was made of lodestone, a naturally-magnetized iron ore, the attractive properties […]
3. Walmart’s top selling item in 2012 was the banana Loading…
3.) At $300 million, starbucks spends more on healthcare insurance for its employees than on coffee beans. Loading…
