Mind-Blowing Facts About Number Seven!

Facts About Seven: 7 (Seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube.

The seven Classical planets resulted in seven being the number of days in a week. It is often considered lucky in Western culture and is often seen as highly symbolic. Unlike Western culture, in Vietnamese culture, the number seven is sometimes considered unlucky.

It is the first number whose pronunciation contains more than one syllable, not counting 0.

Mind Blowing Facts About Number Seven!

Amazing Facts about Number 7

  • There are seven days in a week.
  • The OSI model has seven layers.
  • A ladybug commonly has seven spots.
  • There are seven chakras in our body.
  • There are seven continents in the world.
  • Most of the mammals’ necks have seven bones.
  • Digital devices use a seven-segment display.
  • There are seven wonders of the ancient world.
  • A seven-sided polygon is known as a heptagon.
  • Moreover, there are seven books in the Harry Potter series.
  • The number of rows in the periodic table of elements is seven.
  • There are seven child detectives in Enid Blyton’s Secret Seven.
  • The neutral pH value that lies between acidity and alkalinity is seven.
  • Nerdist news Youtube channel host Jessica Chobot was born on July 7, 1977.
  • There are seven logic gates namely, NOT, NOR, XNOR, XOR, AND, NAND, and OR.
  • A game of polo is divided into periods of seven minutes, each called chukkas.
  • Seven has the highest probability of occurring as an addition when rolling dice.
  • Former American football quarterback Chris James Redman was born on July 7, 1977.
  • Statistics show that on an average, couples divorce in about 7 years of marriage.
  • A set of seven similar things that are considered as one unit is known as a septet.

Interesting Facts About Seven

  • In Snow White and the Seven Dwarfs by Brothers Grimm, the number of dwarfs is seven.
  • The roman number seven (VII) signifies the seventh discovered satellite of a planet.
  • Dick Clark married Kari Wigton on July 7, 1977. This marriage lasted until his death.
  • The Magnificent Seven (1960) was a western remake of Kurosawa’s film Seven Samurai (1954).
  • Those prophecies inspired the debut album Two Sevens Clash by the roots reggae group Culture.
  • Charles Bronson was the only one of the Dirty Dozen who was also one of the Magnificent Seven.
  • In the US tradition, the seventh wedding anniversary is known as the Wool or Copper anniversary.
  • The American vocalist and guitarist Mary Ford was a July 7-born. Born in 1924, she died in 1977.
  • The colors of the rainbow are seven in number. Their names are famously abbreviated as ‘vibgyor’.
  • Seven is the only number below 15 that cannot be represented as a sum of the squares of three integers.
  • The musician Daniel Whitesides who plays drums for the American rock band The Used was born on July 7, 1977.
  • The King James Bible contains 562 instances of the word ‘seven’, which is more than ‘six’ (273) and ‘eight’ (266) combined.
  • According to George Bernard Shaw, the Seven Deadly Sins are food, clothing, firing, rent, taxes, respectability and children.
  • Seven days of festive meals for the bride and the groom follow Jewish weddings. During the ceremony, seven blessings are recited.

Mysterious Facts About Number Seven

  • ‘7-year Itch’ is a term in psychology which says that the happiness in a relationship begins to drop after seven years of marriage.
  • “At seventy-seven, it is time to be in earnest,” (Samuel Johnson, A Journey To The Western Isles Of Scotland). Sadly, Johnson died at 75.
  • According to Genesis, chapter 5, Lamech, the father of Noah, was 182 when Noah was born and lived another 595 years, giving a total of 777.
  • The Jamaican leader Marcus Garvey predicted disaster for July 7, 1977 because of all the sevens. Many businesses and schools stayed shut that day.
  • Mammalian bodies have seven external orifices; namely, the nostrils, mouth, ear canals, nasolacrimal ducts, anus, urinary meatus, and the vagina (in females).
  • In handball, each team consists of seven players. In water polo, 6 field players and 1 goalkeeper make a team, thus making the number of players per team, seven.
  • The code for international direct dial phone calls to Russia and Kazakhstan is 7. Seven is also the number of digits in an American or a Canadian telephone number.
  • In the Islamic tradition, there are seven heavens and seven Earths. The number of fires in hell and the number of doors to both the heaven and the hell is also seven.
  • The number seven is the fourth prime number as also a Mersenne prime, the first Woodall prime, the fourth factorial prime, the second lucky, and the second safe prime.
  • There are seven basic musical notes, namely, ‘do’, ‘re’, ‘me’, ‘fa’, ‘so’, ‘la’ and ‘te’. In Indian music they are denoted as ‘sa’, ‘re’, ‘ga’, ‘ma’, ‘pa’, ‘dha’, and ‘ni’.
  • The stages of grief are considered to be seven in number. They are shock, denial, bargaining, guilt, anger, depression, and acceptance. However, the K├╝bler-Ross model proposes five.
  • Not everyone believes that cats have nine lives. In some parts of Spain, Germany, and Iran, it’s claimed that cats have just seven lives! I wonder what happened to the other two lives?

Unbelievable Facts About Number Seven 

  • A theory says that one loses interest in or the happiness derived from something after seven years of being in it. It may apply to relationships as well as other things like being in a job.
  • It’s commonly known that there are seven clearly defined colors or hues in a rainbow. These colors, which make up the acronym ROYGBIV, are red, orange, yellow, green, blue, indigo, and violet.
  • In Hindu weddings, the couple walks for seven steps Saptapadi, after which they are declared as husband and wife. They have to make seven rounds around the holy fire as a part of their wedding rituals.
  • A research by the Institute of Stem Cell Biology and Regenerative Medicine, Stanford School of Medicine says that our skin is regenerated in 7 days. And every cell in our body is replaced every 7 years.
  • One of the most interesting facts about the number seven is its correlation with the cognitive abilities of human beings. The limits of human cognitive capacity lie within the range of 7 plus or a minus 2.
  • The Indian astronomy regards a constellation of seven stars as a group of its seven prominent saints. It denotes this constellation by the name, saptarishi mandalam. Seven is also the number of stars in the constellation Big Dipper.
  • Both prefixes Sept and Hept mean seven. For example, a Heptagon is a two-dimensional shape that has seven sides. September means the seventh month, which doesn’t make much sense anymore. A long time ago, it used to be the seventh month.
  • The number seven is a special number when it comes to memory, too. The amount of numbers in a series that you can recall accurately is called your digit-span. On average, most people can only correctly remember a series of seven digits accurately.

Mathematics Facts About Number Seven 

  • The number of celestial bodies visible to the naked eye is seven. They include the Sun, the Moon and the five planets, Mercury, Venus, Mars, Jupiter, and Saturn. Earth is a celestial body but since we are on it, for us, it is invisible in the sky!
  • It is believed that your guiding angel communicates with you by showing you repeating sequences of numbers. If you are seeing a sequence of three 7s, the angel number 777, as it’s called, it indicates that you are on the way to spiritual awareness.
  • 1 divided by 7 gives 0.1428571428571429, 2 divided by 7 gives 0.2857142857142857, 3 divided by 7 gives 0.4285714285714286,  Thus we see an interesting pattern of 142857 in all the divisions. Dig a little deeper to find exactly how the series repeats and tell us what you found.
  • Felix Vasquez, an employee of the New York City Housing Authority was born on July 7, 1977. He was the winner of the New York’s Bronze Medallion for his brave act of saving a three-week old child. He became famous in New York for this courageous feat and appeared in many television interviews.
  • There are seven Deadly Sins within Christian teachings, which are considered the worst of all possible vices. These sins are wrath, sloth, pride, lust, gluttony, envy, and greed. Despite holding particular importance within the Catholic faith, the Seven Deadly Sins were never actually mentioned in the Bible.
  • In George Axelrod’s play The Seven Year Itch, it was shown that faithfulness in marriage may reduce after seven years. The American romantic comedy film called The Seven Year Itch showed the protagonist’s inclination to being unfaithful to his wife after seven years of marriage, further popularizing this term’s use.
  • In Christianity, the number seven has gained importance due to the Seven Joys of Virgin Mary, the Seven Sorrows of Virgin Mary, and the Seven Corporal and the Seven Spiritual Acts of Mercy of Roman Catholics. The number 7 appears in the Seven last words of Jesus on the cross, the Seven Virtues, and the Seven deadly sins.
  • According to numerological studies, people with the number 7 are spiritual and in a constant search of hidden truths. They are explorers by nature and have a very different way of living life. Materialistic pleasures do not interest them. They are inclined towards the abstract and have an aptitude for art. Mostly, they are introverts.
  • In J.K. Rowling’s Harry Potter Series, Ginny Weasley is the seventh child of the Weasley family. Harry potter was born in July, the seventh month of the year. 7 is the number on the back of his Quidditch robes. Wizarding students have to complete seven years of school at Hogwarts. The chest in which Professor Moody was hidden had seven locks.

Scientific Facts About Number Seven

  • The number seven is a prime number. If you’re not in the loop, a prime number is a number that can only be divided by itself and the number one. Seven is the fourth prime number, but it’s also a Mersenne prime. A Mersenne prime is more than a standard prime number, as it’s equated to be 2^n – 1. In this case, it’s a Mersenne prime because 7 = 2³ – 1.
  • The Group of Seven was a group of Canadian landscape painters from 1920 to 1933. Originally, Franklin Carmichael, Lawren Harris, A. Y. Jackson, Frank Johnston, Arthur Lismer, J. E. H. MacDonald, and Frederick Varley formed this group. They, along with some other Canadian artists initiated an important Canadian national art movement. Their paintings were inspired by nature.
  • There are seven continents in the world. Well, really, it depends who you ask, and where they studied! If you grew up in the US, you would’ve learned that there are seven continents – North America, South America, Australia, Asia, Europe, Antarctica, and Africa. Some other places in the world see it differently and claim that there are possibly six, five, or even just four continents.
  • The number seven recurs time and time again in folklore around the world. One common theme which reoccurs is the concept of the seventh son of the seventh son. In Ireland, it’s believed that the seventh son of the seventh son will grow up to be a great healer, while in some parts of Latin America, they would be a werewolf. Transylvanian folklore, unsurprisingly, expects the seventh son of a seventh son to inevitably turn into a vampire!
  • A US park ranger from Vermont was struck by lightning seven times and lived to tell the tale! Roy Sullivan was first struck in 1942 when he was 30 years old. Between then and 1977, he was struck a further six times, and he still didn’t die! He ended up dying in 1983 from a gunshot wound, of all things! The odds of being hit by lightning seven times is 4.15 in 100,000,000,000,000,000,000,000,000,000,000 (that’s 4.5 in one hundred nonillion!)
  • Musicians seem to be obsessed with the number seven. We have a Swiss and a Korean artist, both called Seven. There’s a British band called Seven, an American artist called Se7en, a band from New York called The Seven, the British band S Club 7, and a rock band from Georgia called Sevendust. We’re not going to even attempt to list the number of albums and EPs with titles closely relating to the number seven, but there are at least 40 of them! The same goes for songs called either Seven or 7, as many musicians ranging from David Bowie to Prince to Moby to Tyler the Creator have titled their songs thus!

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