The video features a host presenting a series of interesting and little-known facts on various topics, including history, science, nature, and culture. The host shares 30 facts in a 13-minute video, covering topics such as:
* The oldest mask on record, made over 9,000 years ago
* A helicopter prototype from 1922
* The Guinness World Record for the longest walk around the world
* The use of Xbox controllers in US Navy submarines
* The fact that pandas don't like to reproduce and are shown videos of other pandas mating to encourage them
* The existence of "oxygen bars" in India where people can pay to breathe clean air
* The hotel in Zambia built on an elephant migration route
The host also shares some personal anecdotes and jokes throughout the video, and mentions that they will be presenting more facts in future videos.
Here are the key facts extracted from the text:
1. The oldest known mask was made over 9,000 years ago from a piece of stone.
2. Iodine can be used to make the skin and nails visible in an X-ray.
3. A fissure in the iris can be present from birth and may not close until the seventh week of pregnancy.
4. A prototype of an umbrella drone was created to follow people and protect them from the rain.
5. Birds do not have sphincters and can expel feces and urine anywhere.
6. Smaug the dragon from The Hobbit is estimated to have 16 million 646 thousand 250 metric tons of gold, worth around $600 trillion.
7. A musical instrument called a "cel" uses metal plates instead of strings to produce sound.
8. The first prototype of a helicopter was created in 1922.
9. Alcatraz prisoners used decoys made of cotton soap and hair to make it seem like they were in their beds.
10. A floating bridge in China measures approximately 500 meters and is used by cars and pedestrians.
11. Musical roads can be found in countries such as the US, Denmark, Japan, China, and Ukraine.
12. The light emitted by a meteor can be so bright that it can seem like daytime.
13. A safety coffin was invented in the 19th century to prevent people from being buried alive.
14. The longest walk around the world was completed by Jean Béliveau, who walked 75,000 kilometers across 64 countries in 11 years.
15. The character Rocket Raccoon from the Marvel movie Guardians of the Galaxy was used as a model to create a vaccine.
16. Owls' chicks can be mistaken for aliens by people who claim to have seen extraterrestrial life.
17. US Navy submarines use Xbox controllers to control the masts that replaced periscopes.
18. Pandas do not like to reproduce, which was a factor in their endangerment until recently.
19. Zookeepers show pandas videos of other pandas mating to encourage reproduction.
20. A bearded saint is a real thing, and it is actually a woman.
21. People were frequently buried alive in the 19th century, leading to the invention of a safety coffin.
22. The phrase "saved by the bell" comes from the fact that people who were buried alive could ring a bell to alert the living.
23. Robert Downey Jr. was paid $500,000 for the first Iron Man film and $50 million for the last one.
24. As babies, our bones are separated by cartilage, which joins together as we grow.
25. The back of a traffic light has a diagram showing how it works.
26. Sounds originate from different parts of the mouth, such as the tip of the lips and the palate.
27. The longest word in the English language is the full name of the protein titin.
28. A man took over three hours to pronounce the full name of the protein titin.
29. The eyelids of a bird are not used to blink, but rather a third eyelid that slides horizontally across the eye.
30. The pollution in the capital of India is so intense that there are "oxygen bars" that charge $5 for 15 minutes of oxygen.
31. A hotel in Zambia was built on an ancestral route of a group of elephants, which pass through the halls every year.
32. The six Apollo missions that reached the moon left a total of 96 bags of excrement and urine on the moon's surface.
33. An algorithm has been created to show what the ocean floor looks like without the bluish tone of the water.
34. People from Austria, Slovakia, and Hungary can sit down to dinner at a single table without leaving their countries.
35. Apple snails lay their eggs underwater.
36. The name of the soda Pepsi comes from the word "dyspepsia," which means indigestion.