1) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.

2) The word "umbrella" contains three vowels: U, E, and A.

3) Honey never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible.

4) The largest known dinosaur, Argentinosaurus, weighed around 70-100 tons and measured up to 100 feet in length.