When did they ban smoking on airplanes?

When did they ban smoking on airplanes?

1979: Cigars and Pipes banned on aircraft 1988: Smoking banned on US Domestic flights under 2 hours 1990: Smoking banned on US Domestic flights under 6 hours 1998: Smoking banned on all US Domestic flights 2000: Federal law introduced banning smoking on all flights by US airlines.

Is calcium carbonate soluble in water?

Under normal conditions calcium carbonate is water insoluble. When carbon dioxide is present carbonic acid is formed, affecting calcium compounds. Elementary calcium reacts with water. Calcium compounds are more or less water soluble.

What is considered the best novel of all time?

According to the Modern Library organisation, ULYSSES by James Joyce is the greatest novel of all time. Second place is The Great Gatsby, followed by A Portrait of the Artist as a Young Man, Lolita and A Brave New World rounding off the top 5.

Why is it called a sundae?

“Ice Cream sundaes were invented when it became illegal to sell ice-cream sodas on a Sunday in the American town of Evanston during the late 19th century. To get around the problem some traders replaced the soda with syrup and called the dessert an “Ice Cream Sunday.”

Who is JRR Tolkien?

Tolkien is an internationally renowned fantasy writer. He is best known for authoring The Hobbit and the Lord of the Rings trilogy. “If you really want to know what Middle-earth is based on, it’s my wonder and delight in the earth as it is, particularly the natural earth.”

What the boiling point of water in Fahrenheit?

On the Fahrenheit scale, the freezing point of water is 32 degrees Fahrenheit (°F) and the boiling point 212 °F (at standard atmospheric pressure). This puts the boiling and freezing points of water exactly 180 degrees apart.

Do water and ice weigh the same?

The ice cup will weigh the same as when it was in liquid form but the volume of ice in the cup will be larger than what it was in liquid form. This is because when ice crystallizes into its hexagonal structure the water molecules are farther apart than when they are in the liquid state.

Where does the phrase “the whole 9 yards” originate from?

World War II fighter pilots in the South Pacific armed their airplanes while stationed with .50 caliber machine gun ammo belts measuring 27 feet before being loaded into the fuselage. If the pilots fired all their ammo at a target, he went through “the whole 9 yards”, hence the term.