What causes a rainbow to appear?

What causes a rainbow to appear?

A rainbow is an optical and meteorological phenomenon that is caused by both reflection and refraction of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.

What state has the longest name?

The country’s smallest state has the longest official name: “State of Rhode Island and Providence Plantations.”

Which president was the first to speak on the radio?

In 1920, Warren G. Harding also used the phonograph, recording a speech into a horn that caused his voice to press a needle into a wax disk. The White House was brought into the modern age of communication when Calvin Coolidge (1923-1929) made the first presidential radio broadcast from 1600 Pennsylvania Avenue.

What do you call a group of frogs?

A group of finches is called a charm. A group of foxes is called a skulk or leash. A group of frogs is called an army or colony. A group of geese is called a flock, gaggle or skein.

Who was the first man to fly around the world?

Wiley Hardeman Post (November 22, 1898 – August 15, 1935) was a famed American aviator during the period known as the Golden Age of Aviation, the first pilot to fly solo around the world.

Do crocodiles cry?

For centuries insincere humans have been said to cry crocodile tears—a nod to the famous tale that crocs weep with false remorse while devouring their prey. Now research has shown that some reptiles really do shed tears during a meal, but most likely for biological rather than emotional reasons.

Why is a dog’s nose wet?

Wet Nose, Cool Body. Moist noses are also one of the ways that canines can regulate body temperature and cool down. “Dogs don’t have normal sweat glands, like people,” says Dr. King, “so they secrete sweat from the pads of their feet and their noses.”

Is an orange a berry?

As the interfertility of oranges and other citrus has produced numerous hybrids, bud unions, and cultivars, their taxonomy is fairly controversial, confusing or inconsistent. The fruit of any citrus tree is considered a hesperidium (a kind of modified berry) because it has numerous seeds, is fleshy and soft, derives