Following is a list of some great bits of knowledge that can be useful in day to day life, or just to learn something new.
If you already know some of these, but just forgot, this will be a good chance to brush up on that science!
Gold in oceans
It is estimated by scientists that the oceans on Earth contain about 20 tons of gold. This gold, however, exists in small non-extractable amounts.
Lots of saliva
The average human can make about 10,000 gallons of saliva in their lifetime. During the day, a person produces between one and three pints of it. Even just thinking about food can make us salivate!
The amazing human body
When babies are born they have 350 bones in their bodies, but there are only 206 in an adult body. This is because some bones fuse together as the body grows.
Did you know that a baby's weight is increased about five million times on the 238 days before it is born? It also triples within the baby's first year as she gains about 1 1/2 to 2 pounds a month.
Weird rain falling
There are parts in the Chilean Atacama Desert where rain has never, ever fallen, making it one of the driest places on Earth. Yet, in the Amazon rainforest, where 30,000 different plants and 2,500 types of trees thrive, 10 feet of rain falls every year. One third of the world's vegetation grown in the Amazon.
There is a dolphin that lives in the Amazon river, also knows as a boto, that is pink in color. It is the only fresh water dolphin in South America, where they see it as a mythical creature revered for its ability to change into human form.
Inca brain surgery
Using basic tools the Incas successfully performed brain surgery about 1,000 years ago. They operated without anesthesia by drilling holes in the skull of the patient. Apparently, by the amount of skulls that have been found with these trepanation holes, it was very common.
The big Universe
It is not known how big the Universe is, but it is so vast that astronomers measure it in light years. A light year is how fast light travels in a year, and light is the fastest thing in the Universe. Light travels at 299,742,458 meters per second, or 186,000 miles per second.