Standard Form (Numbers) more ... Another name for Scientific Notation, where a number is written in two parts: â¢ First: just the digits (with the decimal point placed after the first digit), â¢ Followed by: Ã10 to a power that will the decimal point back where it should be.
A hummingbird is a small brightly coloured bird found in America, especially Central and South America. It has a long thin beak and powerful narrow wings that can move very fast. COBUILD Advanced English Dictionary.
Hummingbirds are birds from the Americas that constitute the family Trochilidae. They are among the smallest of birds, most species measuring 7.5â13 cm in length. Indeed, the smallest extant bird species is a hummingbird, the 5 cm bee hummingbird weighing less than 2.0 g. They are known as hummingbirds because of the humming sound created by their beating wings which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rates, which vary from around 12 ...