Airline Ticketing Agent Saves Two Girls from Boarding the Flight That Could Have Been Their Last

The More You Know

• The Crown Jewels contain the two biggest cut diamonds on Earth.
• Your brain is sometimes more active when you're asleep than when you're awake.
• You can hear a blue whale's heartbeat from more than 2 miles away.
• Saint Patrick's Day began as a "feast day". To honor him, Christians could put aside their Lenten restrictions on food and alcohol consumption, which is why excessive drinking has become linked to the celebration.