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Structure
Earth is composed of several layers:
Inner Core: A solid sphere of iron and nickel, about 759 miles (1,221 kilometers) in radius, with temperatures up to 9,800°F (5,400°C).
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A man once won a horse race after he died.
This one will have you saying, “What the fact?!” but this dark fun fact is definitely takes “winning spirit” to another level. Frank Hayes was a jockey who suffered a fatal heart attack mid-race. However, his horse still led and finished the race in first place. As such, Hayes was the first and only jockey to win a race posthumously in 1923.
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At birth, baby pandas are smaller than mice.
Giant pandas may grow to over 6 feet, but one of the interesting fun facts about them is their tiny size upon birth. A newborn panda cub weighs 3-5 ounces and is the measly size of a butter stick. That’s almost 1/900th the size of its mother!
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Jack Daniel was believed to die from kicking a safe.
Another morbidly funny fact: Jack Daniel was said to die from kicking a vault. According to the tale, he broke his toe after kicking the safe in anger due to not remembering the combination. It was then that he contracted sepsis. However, this admittedly ridiculous story has since been refuted by some experts.
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Origin and Evolution
Big Bang Theory: The leading explanation for the universe’s origin is the Big Bang, which occurred about 13.8 billion years ago. All space, time, matter, and energy began from an extremely hot, dense state and have been expanding ever since.
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Herring fish communicate by farting.
When herring fish release gas, the bubbles it produces make a high-frequency sound that only herring can hear. The fish use this noise to arrange themselves into “protective shoals” during the night to keep them safe from predators.
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Outer Core: A 1,400-mile-thick (2,300 kilometers) layer of liquid iron and nickel surrounding the inner core.
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A kimono literally translates to “thing to wear.”
Japanese people are known for their punctuality and precise way of life, but it seems they also have a distinct discipline of words. One of the interesting fun facts about Japan is that the word “kimono” literally translates to a “thing to wear.” Ki means “wear,” while mono means “thing”.
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Dark Matter and Dark Energy: Ordinary matter (everything we can see and touch) makes up less than 5% of the universe. About 27% is dark matter, which does not emit light but exerts gravitational effects, and about 68% is dark energy, a mysterious force driving the universe’s accelerated expansion.
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Size and Scale
The observable universe is at least 93 billion light-years across, but the total size may be much greater and possibly infinite.
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The universe is isotropic and homogeneous on large scales, meaning it looks the same in all directions and locations when viewed at a sufficiently large scale.
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Cosmic Inflation: In the first fraction of a second, the universe underwent a rapid expansion called inflation, which set the stage for its large-scale structure.
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Formation of Structures: As the universe cooled, subatomic particles formed atoms, which eventually coalesced into stars, galaxies, and larger structures.