how Ferris wheel invented

Long before radar revolutionized air defense, enormous acoustic mirrors and specialized sound locators stood as the first line of defense against enemy aircraft. Designed as giant “ears,” these structures amplified distant engine noises, allowing operators to detect incoming planes by sound alone. Dive into the intriguing world of these pioneering listening devices, their operation, limitations, and enduring legacy in military history.

During WW2, there was a special unit of men dubbed the ‘Ghost Army’. The unit was made of artists, creative and engineers and their job was to create deception about the enemy. From inflatable tanks to phony convoys to scripted conversations in bars intended to spread disinformation, they used all possible tricks to fool the enemy.

The inventor of shopping carts, Sylvan Goldman, had to hire several male and female models to push carts around in his store, demonstrate their utility, and explain their use to other customers, due to not catching on initially.

Discover the chilling legend of the Mouth of Truth (Bocca della Verità) in Ancient Rome—a massive carved stone face believed to bite off the hand of anyone who lied while inserting their hand into its gaping mouth. Uncover the truth behind its eerie reputation and how this ancient artifact became a symbol of honesty and fear.

The final image of 14-year-old Australian Keith Sapsford, who aspired to travel the world. In February 1970, he sneaked into the wheel-well of a plane flying from Sydney to Tokyo. It opened mid-air & fell out. When a photographer was testing a new lens, he captured this moment on film and was surprised when it developed.

In 1504, Christopher Columbus was stranded in Jamaica with natives who refused to give him food. But he knew the date and time of an upcoming lunar eclipse. So he told the natives that his gods were angry at their treatment of him, and would provide a clear sign. Once the eclipse started, the natives raced to give him food and begged for mercy.

At the 1912 Olympics, a marathon runner quit and went home to Japan without telling officials and was considered a missing person in Sweden for 50 years. In 1966, he was invited to complete the marathon. His time: 54 years, 8 months, 6 days, 5 hours, 32 minutes, and 20.379 seconds.

In 1919, J.D. McMahon convinced investors to fund a 480-foot skyscraper, but he labeled the plans as 480 inches, building a 40-foot structure instead. After taking $200,000, he won in court since the plans matched what he built.

On October 13, 1972, a plane carrying a rugby team from Uruguay crashed in the Andes between Chile and Argentina. The survivors were in brutal conditions - high altitude, bitter cold, and the lack of food—and faced the most terrible choice—eating the frozen flesh of their dead friends or starving to death themselves.

Between 1950 and 1960, Las Vegas offered “Atomic Tourism” in which guests could watch atomic bombs being tested in the desert as a form of entertainment.

A Greek prime minister in 1830’s tried to spread the potato in Greece but people weren’t interested so he put armed guards in front of shipments of potatoes so people would think they were important. People later started stealing these potatoes a lot which spread the crop to all of Greece.

In 2009 in a coal mine of Columbia, scientists discovered fossils of the world’s largest species of snake. The species is called “Titanoboa cerrejonensis,“and it is from around 60 million years ago. It would have had measured about 48 feet long and weighed about 2,500 pounds

During WWII, a German captain and an engineer flushed the submarine's high-tech toilet incorrectly, causing the vessel to rapidly fill with water. British planes patrolling the sea attacked them as the submarine was brought to the surface. While many members of the crew were killed in the attack, the captain escaped!

Identical twins June and Jennifer Gibbons were born on 11 April 1963 at a military hospital in Aden, Yemen where their father worked as part of the Royal Air Force.

Before women were allowed to run in the Boston Marathon, Kathrine Switzer participated. A race official attempted to forcefully remove her from the race in 1967, but her boyfriend pushed him down. She was the first female finisher who had a numbered entry in the race.

The German town of Nördlingen is embedded with 72,000 tons of microscopic diamonds. About 15 million years ago, a meteorite hit this region, and the impact created a massive depression and formed rocks containing diamonds, glass, and crystals. The town was built in the impact crater sometime around 898 CE.

4 January 1961: The 4241st Strategic Wing's Boeing B-52G-95-BW Stratofortress, serial number 58-0187, was on a 24-hour airborne alert mission off the United States' Atlantic Coast.

Australian blood donor James Harrison has been one of our most impressive and valued donors, having donated for 60 years. Know his story, how he was a pioneer of our Anti-D program, and why this matters.

Penicillin was discovered by Alexander Fleming, but he never attempted to turn it into an antibiotic. It wasn't until ten years later that Howard Florey discovered Fleming's obscure paper and understood the mold's potential. Up to 200 million lives may have been saved as a result of Florey's work.

Deep in the Ecuadorian Amazon, archaeologists have uncovered an ancient network of urban settlements once inhabited by the Upano people about 2,000 years ago. Using cutting-edge lidar technology, these discoveries reveal a highly organized society featuring sophisticated agricultural systems, drainage canals, and extensive road networks. This transformative find challenges long-held assumptions about ancient Amazonian societies and sheds light on a complex civilization thriving in one of the world’s most biodiverse regions.

An airplane crashed into the Empire State Building in 1945. Among other damage, plane parts severed the cables of an elevator and the woman inside fell over 70 stories. She lived and holds the world record for the longest survived elevator fall.

On April 28, 1988, Aloha Airlines flight 243 was on the way to Honolulu from Hilo when a huge portion of the upper part of the fuselage blew off the airplane.

Between 1949 and 1989, the Semipalatinsk Test Site in Kazakhstan became the primary location for Soviet nuclear weapons tests, exposing millions of unsuspecting villagers to radioactive fallout. Known as the “Polygon of Suffering,” this remote desert witnessed 456 nuclear detonations that caused widespread health crises, birth defects, and generational genetic damage. This article narrates the chilling legacy of Semipalatinsk, unveiling the human cost of Cold War arms development and the ongoing struggle for healing and recognition in Kazakhstan.

In the bustling vaudeville scene of early 20th century New York, a mysterious performer known as "Sober Sue" captured public imagination not for jokes or songs, but for her unshakable stoicism—she never smiled or laughed. A local theater even offered a tempting reward of $1,000 to anyone who could make her laugh, drawing crowds and famous comedians eager to claim the prize. Despite countless hilarious attempts, Sue remained expressionless, a mystery that baffled performers and audiences until it was revealed that she suffered from facial paralysis, explaining her unchanging demeanor.

A man named Joseph Bolitho Johns (A.K.A Moondyne Joe) broke out of Australian prisons so many times that the police were compelled to build a special cell just for him. He escaped from that as well.