Mount Everest, at 29,028 feet (or 8,848 meters), is the world's tallest mountain above sea level. The tallest peak in the world, however, is in the United States. When measured from the bottom, Hawaii's Mauna Kea towers over 32,000 feet (10,000 meters). Because it barely rises 13,796 feet (4,205 meters) above sea level—and more than half of its base is below sea level—it doesn't get nearly as much attention as the Himalayas.

Here's a fun (and potentially hazardous) science experiment: If you split a grape almost in half and microwave it, it will explode into a fireball of plasma and lighting. Microwaves generate heat by using microwave radiation, according to scientists. When you microwave "nothing" — in this case, a very small grape that doesn't absorb enough power — the electromagnetic waves have nothing to work on and become concentrated.

If you exclude Russia, which is located in both Asia and Europe, Ukraine is the largest country in Europe in terms of land area. Ukraine has a total land area of 603.55 square kilometers. While Ukraine is Europe's largest country in terms of land area, it is not the most populous. With a population of roughly 46 million people, it is smaller than Germany and France.

Brazil's gigantic floating metal Christmas tree achieved a world record in December 2007 at 278 feet and 10 inches tall and blazing with over three million lights. Every year, the tree is brought out as part of Rio de Janeiro's Rodrigo de Freitas Lagoon.

The only river in the world that flows in the opposite direction. The Chicago River, which flows through downtown Chicago, has a fascinating history. This river not only runs through numerous systems and canals, but it is also the only river in the world that flows backward. To divert sewage away from Lake Michigan's water supply, a reversal technique was implemented for sanitation reasons. The river reversal was acknowledged as the largest public earth-moving project ever completed. It was also recognized as a significant engineering achievement.

This unexpected paradox arose due to how scores are calculated: the number of civil infractions and criminal offenses committed in a year should be divided by the municipal population. The number is considerably fewer in Vatican City than in So Paulo, Lagos, or the Bronx. In 2006, for example, the population of Vatican City was 492 people, but the number of crimes reported on its territory was 827. As a result, the statistical crime rate in the country was found to be the highest in the world - 1.68 crimes per inhabitant.

Wimbledon tennis balls are kept at a temperature of 68 degrees Fahrenheit. The temperature of a tennis ball influences its bounce. The gas molecules inside the ball expand as the temperature rises, causing the ball to bounce higher. Lower temperatures shrink the molecules, causing the ball to bounce lower. Wimbledon goes through more than 50,000 tennis balls each year to ensure that only the best tennis balls are used.

In 1905, Frank Epperson, an 11-year-old boy, left soda powder and water outside overnight with the wooden stirrer still in the cup. The concoction had frozen due to the cold evening temperatures, and so the Popsicle was created. He marketed the dessert in his neighborhood and at a neighboring amusement park, and he even copyrighted the recipe. Years later, he changed the name to Popsicle since his children referred to their father's concoction. And if you like these strange facts, don't miss these 18 history courses your instructor lied to you about.

The Indian Ocean has one of the lowest oxygen concentration of any ocean on the planet, owing to a higher evaporation rate than runoff or precipitation intake. This distinguishes life development in the Indian Ocean.

In Chicago, spray paint was invented. What inspired the idea of putting paint in a spray can with a spray tip? Ed Seymour, a Chicago paint salesman, invented this artistic substance, which is now used to create colorful works in public spaces throughout the city.

Korean idols will not be paid until they have paid off all of their debts. For example, if the label spent one million dollars training the members prior to their debut, they will not be paid until they have paid off the entire one million dollars to the agency. Some companies, including SM and JYP Entertainment, do not require newly debuted groups to repay their trainee debt.

Friends was one of the most famous TV series of the 1990s and early 2000s, whether you liked it or despised it. One of the most startling facts about Friends is that it was shot at the Warner Brothers Ranch just outside of Los Angeles rather than in Manhattan, where it is set. Having saying that, there are a few locales outside of Los Angeles where filming took place. One of these is, of course, Monica and Rachel's New York apartment complex at 90 Bedford St.

According to some experts, our planet has a second satellite. Another cosmic object, according to scientists, is circling around the Earth. However, it is not necessarily the same object but rather a fleet of transitory satellites. It is thought that the gravitational field of Earth occasionally attracts quite large asteroids, which continue to follow our planet for a short period (approximately three revolutions) before dispersing into the expanse of space.

Algeria's national animal is the large eared fennec fox, which is always lovely. These little foxes, native to the Sahara Desert and the Sinai Peninsula, only weigh 1.5-2 kilogrammes and are known for their enormous ears. They are every bit as adorable as they sound. These adorable critters are so popular in Algeria that they are not only the national animal, but also the nickname for the country's football team, Les Fennecs.

Steve Rogers was physically born on July 4th. There wasn't always a lot of complexity in the early days of comics. Steve was primarily designed to be patriotic and punch Hitler, so it's not surprising that they took his birthday so seriously. However, the choice is appropriate, as Cap has grown to embody the noblest principles of America throughout the years. (A role that Chris Evans appears to be taking on in real life as well.) In addition, if you follow astrology, you now know that he is a Cancer.

Your lodging in Japan will most likely have Yukatas, so you may try one on and feel like a true blue Japanese. Stay in traditional Japanese-style rooms with Tatami mats as bedding in Japan's rural districts to round out your experience.

The Dubai Police Department has more oomph than any other police force in the planet. They have access to a wide choice of supercars, including Bugatti, Ferrari, Bentley, Lamborghini, Camaro, Mercedes, and many others. The fastest of them all, the Veyron, can reach speeds of up to 407 kilometres per hour!

Despite the fact that Stoker placed his novel in Transylvania, he never visited the region. Instead, he did as much study on the setting as he could and made up the rest. Most of his Victorian readers couldn't tell the difference, especially when he included information from trip books like railway schedules, hotel names, and a chicken meal called paprika hendl.

We may think of processed cheese as a uniquely American invention (think Kraft and Cheez Whiz), but it turns out that the Swiss invented it first. According to the Michigan Dairy Review, processed cheese was invented in 1911 by Walter Gerber and Fritz Stettler in Switzerland to improve the shelf-life of cheese before it was shipped overseas.

Many people believe that they only have one sign based on their birth date. That sign is known as the sun sign, but there are many others, including a sign for each planet and 12 different houses. The "big three" are your sun, moon, and rising sign, which reveal information about your personality, emotions, vulnerability, and love style. You will need your birth date, birth location, and time (as accurate as possible) to retrieve your birth chart, which will reveal your "big three."

The tomato was dubbed "the poison apple" in 18th-century Europe because aristocrats would frequently become ill and die after eating them. They had no idea that the explanation had to do with their tableware, not the tomatoes. The high acidity of tomatoes, according to the historical cookbook "Heirloom Flavor: Yesterday's Best-Tasting Vegetables, Fruits, and Herbs for Today's Cook," would cause lead to leach from the pewter plates used by rich aristocrats and cause lead poisoning. The aristocrats mistook the tomato for the source of the problem.

Libya's discovery of oil in the 1950s marked a significant improvement for the country, which had previously been one of the poorest in the world. The country's annual oil output peaked at 1.65 million barrels per day in 2010. Oil and petroleum products account for the majority of the country's exports and government revenue today. It is also one among Africa's 15 most prosperous economies, including South Africa, Nigeria, Algeria, Egypt, and Cameroon, among others. Nonetheless, the country's unpredictable political situation has caused worldwide oil price changes in recent years.