Lake Baikal is the deepest lake on the earth with a maximum depth of 1741 meters and a mean depth of 730 meters.
A raisin dropped in a glass of fresh champagne will bounce up and down continuously from the bottom of the glass to the top.
Light emitting algae combine various chemicals to illuminate their bodies.
The shortest English word that contains the letters A, B, C, D, E, F is 'feedback'.
Laughter lowers levels of stress hormones and strengthens the immune system. The six-year-olds laugh an average of 300 times a day.
The Eiffel Tower has 1 792 steps.
African baobab tree's circumference can reach 180 feet. If the trunk is hollow, 120 people would be able to fit inside it.
King John of Portugal bought a new throne in 1819. His servants had to speak into the arms of the throne. Their voices travelled along a tube, which the king held to his ear.
Beavers can close their lips behind their front teeth, so that they can gnaw wood under water without swallowing a drop.
Hummingbirds cross the Gulf of Mexico in less than 3 gms of fuel (They consume between 3 and 8 calories in a day and can fly up to 93 miles per hour).
