#914 Why is a plane’s propeller in front but a boat’s in back?
Why is a plane’s propeller at the front but a boat’s at the back? Because of how they move through the medium they travel in, the angle they need to…
Why is a plane’s propeller at the front but a boat’s at the back? Because of how they move through the medium they travel in, the angle they need to…
How did America build so many Liberty ships in World War 2? They could build so many because of the way the ships were built, new technologies, their infrastructure, and…
Are lighthouses still necessary? Yes, they are because technology can fail, and some things don’t show up on maps or with sonar. The Lighthouse Directory lists 24,300 lighthouses on its…
When did sailing ships die out? There are still ships that use sails today and a new type of large cargo ship that uses wings has been introduced, but the…
How does a naval mine work? There are several different kinds of mine that are intended for different targets and there are several different detonation mechanisms depending on the age…
Was Ferdinand Magellan really the first person to circumnavigate the world? No, because he died about two-thirds into the journey. Ferdinand Magellan’s name was actually Magellan. He was born Fernão…
I learned this today. Hardtack is a dense biscuit made from flour, water, and sometimes salt. It was sometimes called “ship’s biscuit” because it was a staple on long voyages.…
I learned this today. The Panama Canal has reduced the journey from the Atlantic Ocean to the Pacific Ocean by 8,000 nautical miles (14,818 km), about 22 days. Before the…
I learned this today. Ships float because the density of the total volume of the ship is less than the density of the same volume of water it displaces. An…