Sechs Kies is South Korea's most established idol group. The band was founded in 1997 with six members and currently has five active members. Some may not consider them the longest because they were on hiatus for more than ten years; however, the longest-lasting idol group could also be considered Shinhwa, who debuted in 1998 and has been promoting consistently for the past 20 years.

The largest padlock in the world (according to Guinness World Records) was created by a team of students and teachers at Russia's Pavlovo Arts College and measures 56.8 inches tall, 41.3 inches wide, and 10.2 inches deep. The total weight of this heavy lock, including the key, is 916 pounds. Whatever it's guarding presumably weighs a lot more!

During the feudal period, rich Japanese lords constructed residences with purposefully squeaky flooring (known as Nightingale Floors) to deter ninjas. The fabled, highly trained mercenaries of mediaeval Japan were so entrenched in myth and tradition that they were thought to be capable of walking on water, becoming invisible, and controlling natural forces. That has to be enough reason to lay down some new flooring.

Yes, truly. Nintendo rented a warehouse in Tukwila, Washington, in 1981 to serve as its American headquarters. According to NPR, when a guy called Mario Segale went into his Nintendo tenants' offices demanding late rent, he created an impression. Even Segale's preference for overalls and short stature appear to have influenced Mario's design over time.

With its enormous size and mass, you'd think Jupiter would rotate slowly around its axis. With a rotational velocity of 45,300 km/h, it is the fastest spinning planet in the solar system. As a result, a day on Jupiter lasts only 9 hours and 55 minutes. A year, on the other hand, is much longer; Jupiter orbits the sun once every 11.8 Earth years.

Rivers and lakes can be found beneath the ocean. When salt water and hydrogen sulphide combine, it becomes denser than the surrounding water, forming a lake or river that flows beneath the sea.

If you look closely at your zipper, you'll notice the letters YKK, which stand for Yoshida Kogyo Kabushikikaisha. This business, founded in Tokyo in 1934, is believed to create 7 billion zippers every year.

Most people are unaware of how biodiverse Papua New Guinea is; the magnificent wildlife underwater has made it one of the world's best scuba diving destinations. Despite having only 1% of the Earth's total surface area, Papua New Guinea includes 20,000 plant species, 800 coral species, and over 650 fish species. Do you have your PADI scuba diving certification? If you don't have one, you should obtain one before going to Papua New Guinea to make the most of this unique underwater world.

An ultra-luxurious lodge has been opened on Nosy Ankao, the biggest of five islands off Madagascar's northeast coast. Miavana (only accessible by helicopter) is a destination for "blue safaris," which include opportunities to see turtles, whales, and dolphins, as well as scuba diving and fishing. There's also a fantastic spa. But start saving now - doubles start at £3,220 per night.

The tides are caused by the tiny changes in gravitational pulls of the Moon and Sun, as well as centrifugal forces in opposing directions. The tides on Earth are at their greatest when the three bodies are aligned, which occurs near the full and new Moons. The Earth is then expanded along that line.

In the year 1,000 AD, half a millennium before Christopher Columbus "discovered" America, Greenlandic Viking chief Leif Eriksson arrived on the island of Newfoundland. Leif Eriksson's Vikings inhabited Newfoundland, as well as finding and populating Labrador further north in Canada.

In the 1990s, Korean pop musicians incorporated American popular music styles. Seo Taiji and Boys were the forerunners of this style, releasing the infamous single "I know" in 1992. It was so controversial that most critics despised their music and predicted that they would never make it. Nonetheless, the group quickly became enormously popular. Yang Hyun Suk of YG Entertainment was a member of the group, which is regarded as part of K-revolutionary Pop's period.

In 2012, when Boeing wanted to test its wireless signal on new planes, they placed massive piles of potatoes on the seats. Potatoes absorb and reflect radio and wireless signals in the same way that humans do due to their high water content and chemical makeup.

If you go to Moldova for a vacation, you won't have to compete for space with other tourists: just 121,000 foreigners are believed to have entered the nation in 2016 (according to the UN World Tourism Organization), making it the least visited country in Europe. According to Priceonomics, only Bangladesh and Guinea are less touristic places on a worldwide scale (in terms of tourists per inhabitant).

Muammar Gaddafi took power in Libya in 1969 and reigned for 42 years. As a result, he became one of Africa's and the world's longest-serving leaders of state. Gaddafi was well-known for being a despotic ruler. He did, however, serve his country well by increasing health care to the point that it was among the finest in Africa. He also boosted Libya's literacy rate from 25 percent to 87 percent during his tenure. When he was removed from power in 2011, his reign came to an end. The militia hunted him down and murdered him in his hometown, where he had sought safety. Gaddafi's net worth was $200 billion at the time of his death.

Humans have celebrated the start of each new year with parties, festivals, and religious ceremonies for millennia. However, we haven't always agreed on the beginning of the year. Four thousand years ago, the first new moon after the Vernal Equinox was regarded as the dividing line between the previous year and the new one in ancient Babylon. After Julius Caesar made major changes to the Roman calendar in 45 BCE, January 1 became the start of the new year for the first time. Ancient Romans commemorated the day with sacrifices to Janus, the Roman god of beginnings (after whom the month of January is named), as well as gift exchanges and large parties.

USA's present 50-star flag was created by 17-year-old Robert Heff as part of a high school project. It was 1958, and there were only 48 states at the moment, but Heft had a feeling Hawaii and Alaska would get statehood shortly. His teacher gave him a B- but later raised the mark to an A after Heft submitted his design to the White House, resulting in a call from President Eisenhower announcing that it had been chosen as the official U.S. flag.

The entire ban was based on the discovery of a picture of a swastika-adorned Pooh owned by a single person known for supporting the Nazi party. That was apparently enough to get Winnie banned for good.

As if the Nazis weren't already evil enough, they got dangerously close to producing plutonium, the material that powers nuclear bombs. When the Germans invaded Norway, they seized control of a facility in the Telemark region that manufactured heavy water, which was used to generate plutonium. However, before they could create anything, a group of 11 Norwegian commandos damaged the factory, detonating explosives in the base without incurring a single death.

Ecologists estimate that treating one ton of ore yields 1–2 grams of gold. The same quantity of precious metal may be obtained by processing all gold-bearing components from 41 mobile phones. A tonne of electronics includes almost 300 grams of gold. However, the cost of the devices is prohibitively expensive for this gold-mining method to be profitable.

Anthropologists have discovered evidence that pre-Olmec cultures in Mexico produced chocolate around 1900 B.C. Chocolate's origins can be traced back to Mesoamerica. The Aztecs (a Mesoamerican civilization) traded cocoa beans with the Mayans because they believed they were a gift from Quetzalcoatl, the God of Wisdom. When the Aztecs took over Mesoamerica, they had a strong desire for cocoa beans, which could not be grown in the heart of their civilization. As a result, they were forced to rely on the Mayans and trade cocoa seeds with them. These were known to be so valuable that they were used as currency.

The Water Festival, also known as Thingyan, is one of the country's largest celebrations. Thousands of people come to the streets in April to celebrate the Burmese New Year with a massive water battle. Everyone enjoys a good time, and it's one of the most significant aspects about Myanmar culture that every traveller should be aware of. Participating is most likely the finest vacation experience you can have here.

In the year 1897, machine-spin cotton candy was invented by the dentist William Morrison and a confectioner John C Wharton. These candies were first introduced to a wide audience in the year 1904 at 'Fairy Floss' and achieved great success.

Kites were first seen in America in the mid-1700s, according to history. Benjamin Franklin, one of America's founding fathers, famously flew a kite during a thunderstorm in 1752 to demonstrate an experiment about electricity and nature. This is the first documented kite flight in American history, and Franklin demonstrated that lightning carries electricity. He would later invent the lightning rod as a result of this experiment. What a fascinating fact about kites—it aided one of the world's best inventors in making a fascinating discovery.