Niagara Falls actually stopped flowing back in 1848 for about 20 hours because there was ice that was blocking the Niagara River.A baseball will go farther in hot temperature than in cold temperature
Enough paper is recycled in the USA every day, that a 15 mile long train of boxcars could be filled up with paper.
The aorta, which is largest artery located in the body, is about the diameter of a garden hose.
The world’s first underground was the London Underground in1863. It has 275 stations and 253 miles of track.
One of the most dangerous insect in the world is the common housefly. They carry and transmit more diseases than any other animal in the world.
The sun is approximately 149 million kilometres from the earth.
