ETOPS, or extended twin operations, is a designation that indicates the amount of time a twin-engine plane can safely cruise with one engine out of commission. The Boeing 787 Dreamliner received 330-minute ETOPS certifications in 2014, indicating that it can operate safely on just one engine for more than five hours before landing.

Retinoids are widely thought to increase skin's sensitivity to the sun. Because the component is light-sensitive, it frequently comes in an opaque tube. However, if you use a retinoid at night, it won't make your skin any more sensitive to UV radiation. The following morning, just put on your usual amount of clean sunscreen, and you'll be protected.

not even contemporary graffiti. The graffiti that covers Pompeii is not a result of disrespectful tourists; rather, it dates from before the eruption. Private messages, public announcements, and election notices are just a few examples of how it provides tourists and historians with a remarkable window into Roman society. On one of our Pompeii tours from Rome, you can see all of this graffiti while imagining yourself going about your daily business in an ancient city.

The MTB Himalayas, a yearly trekking race is held in the territory of Himachal Pradesh. It began in 2005, the race covers almost 500 km in a range of 8 days and is one of the hardest MTB stage races on the planet. The race is supported by Legend cycles India. The race starts in Shimla and closes at Shimla. It goes through Shimla, Kullu, and Mandi areas and is one of the main realities in regards to Shimla

They may not feel discomfort, but they can cause significant pain. Researchers noticed that after clamping down on a load cell, a pressure-measuring device, the lobster's larger claw, the crusher claw. This claw appears to have molars because it is used to break up anything hard, such as crabs, clams, and mussels. The other, known as the ripper claw or fast claw, tears softer prey such as fish or worms.

Experts believe the Portland Vase was created in Rome between AD 5 and AD 25. The Vase is currently housed in the British Museum and has been there for over 200 years.

Vatican City is most likely the only country on the planet without a prison. The country does have a few pre-trial detention facilities. According to the Lateran Treaty, those convicted and sentenced to jail serve their time in Italian prisons. The Vatican government pays for the costs of incarceration.

Since Daviel's groundbreaking procedure in the 18th century, cataract surgery has advanced significantly. Technology advancements have led to changes and improvements in the process. One of the procedures that are carried out the most frequently in the US is laser surgery. You can say goodbye to cataracts in as little as 15 to 30 minutes. Success rates have also increased. Following laser cataract surgery, nine out of ten patients have vision that is twenty-twenty or better.

The typhoon season lasts from May to November, and Hong Kong has a very effective infrastructure in place to deal with these intense tropical storms. A T1 signal implies that a storm is on its way. Then a T3 indicates that the storm intensifies, so schoolchildren and the elderly should stay home. Winds up to 180km/h swirl across the city during a T8 or T10, closing businesses and public transportation.

When all of the time spent by every gamer playing Call of Duty back-to-back is added together, it equals 2.85 million years of gameplay. Humans haven't even been on the planet that long. Call of Duty has far outpaced evolution!

Being a pirate was not limited to men. Mary Read, Anne Bonny, Grace O'Malley, and Ching Shih are examples of famous female pirates.

The mantis shrimp uses its two tentacles, which have the same velocity as a rifle gunshot, and dismember other shellfish by boiling the water around them to produce a shockwave that can kill animals. To put that into perspective, a human could have thrown a rock into space if they had used the same force in their arms! Additionally, the intensity of their shell is so great that it served as a model for true human body armour.

The oldest known event that is still held is Chhath Puja. Because it is a festival of the sun deity, Chhath puja is extremely important at the sunrise and sunset hours. According to the devotee, dawn and sunset are the most important times of the day when a body may safely receive beneficial solar energy without damage. On the scientific side, solar energy has a very low quantity of dangerous UV radiations throughout this time period, making it safe for human bodies.

Some pirates delayed burying their treasure because they wanted a piece of the loot first. And a pirate's treasure wasn't always gold or silver; it could also be food, lumber, cloth, or animal hides.

Have you ever wondered where the superstition that breaking a mirror would bring seven years of bad luck originated? This ancient superstition dates all the way back to Roman times, according to our fun fact about mirror number 8.

The Romans believe that breaking a mirror would harm both your soul and your life, which are renewed every seven years. As a result, seven years of bad luck followed.

Leonardo da Vinci, the ideal of the Renaissance man, was a talented musician as well as a skilled painter. In addition to playing the lyre and the flute, he sang regularly at noble meetings and at the palaces of his benefactors. Some of his musical creations are also included in his surviving manuscripts.

The World's Most Famous Treasury Is Actually A Graveyard Petra's Treasury, contrary to popular belief, is not a looming maze of booby-trapped rooms designed to separate the righteous from the unworthy, but rather a relatively small area that is most likely a beautifully decorated graveyard. Any buried treasure was most likely removed a long time ago, but the Treasury facade is a work of art, lovingly carved by the Nabataeans centuries ago.

The music of Wilhelmus, the Dutch national anthem, dates back to between 1569 and 1572. This makes it the oldest melody used in a country’s national anthem, although it did not become the official Dutch anthem until 1932. 

The lyrics were also written at least 400 years ago and they refer to “Dietse Bloed”, an old word for Nederlands (Dutch).

During the First Opium War in 1841, British forces controlled Hong Kong Island. Following China's loss, the Qing Dynasty gave over Hong Kong to the United Kingdom in 1842 through the Nanjing Treaty.

Rio is Brazil's second largest city, with a population of 6.3 million people. However, it pales in comparison to Sao Paulo, Brazil's largest city, which has a population of 12.04 million people.

Scientists hypothesize that all the particles known in the Standard Model of particle physics, such as electrons, neutrons, and quarks, belong to a particle category called "supersymmetric partners." Dark matter is a form of stuff that cannot be detected with traditional sensors but can be discovered by its gravitational effects. Some scientists believe that a particle is known as the wino — the W boson's supersymmetric companion — might help explain dark matter.

A common, but the lesser-known side effect of anxiety is anger. When we feel powerless over a situation, or our life is out of our control, expressing anger is a natural way to feel a sense of control.
It’s much easier to externalize the conflict rather than acknowledge the real issue and deal with it. Additionally, with chronic sufferers of anxiety, depression sometimes develops.

Patients with pancreatic cancer may occasionally undergo a difficult procedure known as a Whipple procedure that entails the removal of the pancreatic head, a portion of the small intestine, the gallbladder, the bile duct, and occasionally even a portion of the stomach. However, only a small percentage of those with pancreatic cancer can undergo surgery.

A treaty was drafted between the two countries in 1898, leasing Hong Kong to Britain for 99 years. As a result, Hong Kong became a Chinese Special Administrative Region on July 1, 1997.