According to an Air Accident Investigation & Aviation Safety Board report, those masks only provide 12 minutes of continuous airflow on a 737. Fortunately, that is usually just enough time for your plane to find a safe landing spot.

The Philological Society of London proposed the first comprehensive English language dictionary in 1857, including words from the 12th century to the present. The Philological Society joined forces with Oxford University Press in 1879, and work began. The first volume of the dictionary (A to Ant) was published by Oxford University Press in 1884, and the final volume was published in 1928. The dictionary, titled A New English Dictionary on Historical Principles, contained over 400,000 words and phrases. The Oxford English Dictionary (OED) is now one of the most respected and widely used dictionaries in the world.

Prior to the 1990s, it was widely assumed that significant human construction did not occur until early man dealt with agriculture and began to establish towns. When archaeologists discovered Göbekli Tepe in southern Turkey, this notion was thrown out the window because the remains, which included the world's oldest megaliths, were created roughly 2,000 years before the agricultural revolution.

Betel leaves are a mild stimulant that the locals like to chew on for a couple of minutes. Unfortunately, the leaves cause their mouths to water, which in turn is mixed with the red dye of the substance. People then spit this out onto the floor causing red stains along the street. The first impression when you see this ubiquitous marking on the floor may be blood. But, it’s not.

When you’re in Myanmar, you’ll see people chewing this and will become familiar with the red stains that line the streets. Vendors sell large green leaves containing the nut with spices and occasionally tobacco. Try it yourself if you dare.

Your nails' ability to grow can be impacted by stress. One thing that will stop your nails from growing is stress. But don't worry, your nails will eventually grow back.

In the 1970s and later series, Batman firmly adhered to this guideline, and he frowns on other superheroes who do the same. This, however, was not always the case. Batman had previously slain countless villains in prior incarnations of the comics, including the iconic Joker in Batman 1.

According to the Koran and Sharia, a Muslim man has the right to marry four women at the same time and must treat them all fairly. A Muslim lady can only have one spouse at a time. Tunisia was the first Arab country to outlaw polygamy in 1956. Having more than one marriage at the same time is illegal in Tunisia, and those who engage in polygamy will face punishment. Polygamy is typically permitted under civil law in nations where Islam is a dominant religion.

Sleep rejuvenates the body, and dreams revitalise the mind. This is because dreams are similar to creativity, according to the American Psychological Association. The way the brain solves problems in dreams is similar to how it thinks creatively in the waking world. As a result, many artists are more likely to be inspired by their dreams and to think creatively while awake.

Similar to eyelashes, eyebrows assist in keeping sweat and debris out of our eyes. But did you know that the structure of our eyebrows really prevents water from entering our eyes directly? For instance, rain and sweat splash against your brows and slide down the sides of your face, keeping it out of your eyes.

A fascinating fact about the Indian Ocean is its lack of marine animal life, which is related to the ocean's greater water temperature. This water is the hottest on the planet, giving plankton and other animals limited room to flourish.

There are several historical highlights at Niagara Falls. One of the oldest United States flags still in existence, seized by the British during the War of 1812, is on display at Old Fort Niagara. Lewiston was the site of the opening fight of the War of 1812 and the final terminus for the Underground Railroad, a network of hidden passageways for escaping slaves. The original Flight of Five Locks, a mechanism for elevating and lowering boats, was completed in 1815 and is still operational on the Erie Canal near Lockport, giving the largest lift in the shortest distance on all U.S.-made canals.

The vitamins, nutrients, and deliciousness are packed into every grapefruit hue. But the ones in red and pink have a little extra.

When the king queried his companions about the wonder of the idol and how it stayed in the air without a prop or support, some said that it was kept up by some secret support. The monarch asked someone to walk around with a spear and feel all around, above and below it, which he did but encountered no obstacles.

Dogs that are moderately active and well-behaved are ideal for senior persons. Indian pariah dogs make wonderful companions thanks to their outgoing personalities and independent way of life.

When "The Hurt Locker" won six Oscars out of a possible nine nominations, including the coveted Best Picture award, it set a new record for the lowest-grossing film ever to take home an Oscar. Its estimated box office revenue of $21 million is less than 2% of what its rival, "Avatar," brought in during the same period.

The part of the eye that limits the amount of light that reaches the retina is called the iris. The iris shrinks and lets in less light while it's bright outside, and the opposite is true at night.

No surprise here - 'Avatar' holds the crown for the most expensive movie ever to win an Oscar with a production budget estimated to be around $280 million. While it failed to win Best Picture or Best Director, it did pick up Academy Awards for Art Direction, Cinematography and Visual Effects.

A common misconception is that bloody gums are normal; however, if you find blood on your sink after your oral hygiene routine, take note. This could be an indication of gingivitis, a mild form of gum disease. The good news is that this stage of gum disease is reversible if properly treated by your NE Calgary dentist. We understand that flossing is the last thing on your mind when your gums are bleeding, but it is the most effective way to treat the source of infection and halt the progression of gum disease.

Your friendships are affected directly by love. When you get a boyfriend or girlfriend, you usually have to let go of two other important people in your life (such as a bestie or a family member...not cool!).

This is absolutely true, and you may have already noticed it if you've ever tried to feed a dog that is wary of people. He or she will put their tail between their hind legs out of fear, which is an obvious sign that they are frightened and do not like your approach. Simply be patient in this case, or put the food down and leave the vicinity; they will eat it later. When fighting with other dogs, they frequently tuck their tails between their back legs.

One of the lesser-known statistics is that Mexicans are the hardest working people on the planet, with the average resident working 2,148 hours each year, or 41.3 hours per week!

The rooftop of Central's HSBC Hong Kong building has two deflector rods. This is because the building faces the Bank of China building, which has sharp edges that are thought to cut and dilute good energy.

It may sound absurd, but soap production was once strictly regulated to prevent illegal production. According to the Telegraph, the soap tax, which was implemented in 1712, was once a major source of revenue for the Exchequer, raising roughly the same proportion of income as alcohol duty does today. The imposed levies were so high that the tax collector decided to lock the lids on soap boiling pans every night to prevent illegal soap production after hours.

The Last Supper, another masterpiece by Leonardo da Vinci, is a late 15th-century mural painting depicting Jesus' last supper with his apostles. He created the artwork between 1495 and 1496 with the intention of depicting the exact moment after Jesus reveals that one of his friends will betray him.Specifically, the apostles' expressions of rage and shock. Despite being one of the world's largest and most famous paintings, you won't be able to see it in a museum. It has a permanent residence in a convent in Milan, Italy.

History was made on 1 April 2001 when the Netherlands became the world’s first country to legalize same-sex marriage. Job Cohen, the mayor of Amsterdam at the time, married four couples at midnight on 1 April to mark the occasion. Many same-sex couples have since happily tied the knot. 

Amsterdam is also known for being one of the world’s most LGBTQ-friendly cities, with plenty of gay bars. You can also see the Homomonument in the city centre, a tribute to gay men and women.