13 Facts That Sound So Unbelievable They Seem Like a Total Scam (14 photos)

No matter how long a person lives and how much new knowledge they acquire, something will always remain unknown. And that's wonderful. Because what joy will life have if you know absolutely everything about it? We present a new collection of facts that seem so simple and yet so incredible that it's hard to believe they're true.





You can distinguish cold water from hot water by the sound it makes when it flows from the tap.

Water's viscosity decreases as the temperature rises, which is why you can hear the difference between hot and cold water. You can listen to it in the video.



Sharks existed before trees

The earliest shark fossils discovered are 420 million years old. The first trees appeared on Earth during the Devonian period, which began 419 million years ago and ended 358 million years ago.





Pottery predates blue-eyed people

In a 2008 study, a team from the University of Copenhagen traced the blue-eyed gene back to a common ancestor that likely lived about 10,000 years ago. Pottery shards found in China, which indicate the existence of pottery, are 20,000 years old.



Charlie Chaplin and rapper 50 Cent lived at the same time

Although they represent completely different eras and cultures, Chaplin and the rapper lived at the same time—the famous actor died on December 25, 1977, when Curtis Jackson was two and a half years old.



Cumulus clouds can weigh more than one million pounds (454 tons)

An average cloud with a volume of about one cubic kilometer weighs about 1.1 million pounds (458 tons).



The United Kingdom is slightly smaller than the US state of Michigan.

The area of ​​the UK is 242,495 square kilometers, including land and water. The area of ​​the state of Michigan, including land and water, is 250,493 square kilometers. However, if you consider only land, the UK is 93,000 square kilometers larger than the US state.



All peacocks are male.

In nature, there is no such thing as a female peacock. That's because they are called "peahens."



Every year, cows kill more people than sharks

The US Centers for Disease Control and Prevention calculated that over a five-year period, there were 21 fatal cow attacks in four states. That's about four deaths per year. Meanwhile, shark attacks kill an average of one person per year.



The 2% margin of error that the Chinese government aims for in its census is larger than the population of Australia.

China's population in 2016 was 1.378 billion. Therefore, 2% of this figure (27.57 million people) exceeds the population of Australia—just over 24 million.



The first people to measure Everest added a couple of feet to make the figure seem more realistic.

The team that first measured the height of Everest's peak found it to be exactly 29,000 feet (8,839 m). Thinking they wouldn't be believed because of the even number, the team added two feet to make it sound more plausible (8,840 m). However, since then, new methods of measuring mountain peaks have shown that Everest's exact height is 29,035 feet (8,848 m).



A quarter of the bones in the human body are in the legs.

The human leg consists of 28 bones, and the two legs have 56 bones. This makes up just over 27% of the total number of bones in the human body—206.



Lighters were invented before matches.

The Döbereiner fire starter was invented by Johann Wolfgang Döbereiner in 1824 and is considered the first fully functional and relatively safe lighter. The matches we know today were invented in 1827.



When Krakatoa erupted in 1883, the sound was so loud it could be heard 500 kilometers away.

The Krakatoa eruption is considered one of the deadliest and most destructive in history: at least 36,417 people died as a result of the eruption itself and the resulting tsunami.



The world's population has doubled in just the last 50 years.

In 1960, the Earth's population was approximately three billion. As of November 15, 2022, that number reached eight billion.