People can actually undergo operations to alter the colour of their eyes. However, rather than only for aesthetics, this is frequently done for practical reasons. To make their eyes less susceptible to light, people with exceptionally light eyes frequently have them surgically changed to a darker tint.

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.

Taylor Swift’s Look What You Made Me Do attract 84.4 million US streams for the week ending 31 August 2017. 

The track was streamed more than 8 million times on Spotify on 24-25 August 2017, also earning the record for the Most streamed track on Spotify in the first 24 hours. 

With 43.2 million YouTube views, the music video for this song also has the record for the Most watched video online in 24 hours.
 

According to legend, the addition of candles to cakes began in Ancient Greece, where cakes were made in the shape of a moon for the Goddess of the Moon, Artemis.The moonlight was reflected in the candles, and the smoke lifted the devotee's prayers to Artemis. It's also said that when we blow out the candles on birthday cakes, the smoke carries our wishes away to be granted. You don't want to be blowing out those birthday candles in Venezuela, where it's customary to try to push the birthday girl/face boy's into the cake after the candles have been extinguished. At the very least, they get to try the cake first!

Although wheeled office chairs were already in existence, they were not as comfy or ergonomic as what we have today. So Darwin did something daring with his opulent couch. The man was a well-known workaholic, and when he wasn't gathering or devouring specimens, he was researching them and taking notes. He discovered that in his study or lab area, he would have to move around the workplace from bench to bench, desk to desk. So, in order to increase his productivity and save crucial study time, he decided to add wheels to his beautiful recliner.

Finding fireflies is one of the summer's joys. You might be able to spot a ghost firefly if you're in the Southern Appalachians; you'll know it when you see it because it will shine a distinctive blue-green color rather than the usual white.

Maa Kamakhya of Guwahati is one of the oldest temples in India. There are 51 shakti peethas in different parts of India as well as in Pakistan, Nepal & Sri Lanka. The Kamakhya Shakti Peeth is considered the most powerful shakti peeth, as yoni (vagina) of Goddess Sati had fallen on the Neelanchal parvat i.e. the Nilgiri hills, following the splitting of the Goddess's dead body. Since everyone comes to this world through ‘yoni’ that is why this place is considered the center point of creating the whole Brahmand.

In the last 300 million years or so, several types of plants have evolved a tree form, or "arborescence." It's a tricky stage in plant evolution, requiring innovations like sturdy trunks to keep plants upright and strong vascular systems to pump water and nutrients up from the soil. The extra sunlight, on the other hand, is worth it, causing trees to evolve multiple times throughout history, a phenomenon known as convergent evolution.

Take a look at your atlas if you haven't already! When turned 90 degrees, Nepal resembles the map of Portugal. It gives you something to brag about, doesn't it?

Brazil is the world's ninth largest economy. The country is a member of the BRICS group, which also comprises Brazil, Russia, India, China, and South Africa.

Sound waves can be recorded and transmitted to a digital signal, which has a specific pattern of the required sound waves in a digital series that can be stored on a digital tape, CD, or computer system. When you play the signal, the digital pattern is converted back into sound waves. Although analogue sound recordings produce an exact copy of the desired sound wave pattern, making many copies of the original records can introduce extra noise and distort the unique pattern. However, digital records only have a pattern of numbers that you may replicate and correct as needed without any distortion. As a result, digital sound recording is always preferable to analogue recording.

If you order from Starbucks regularly, you know that there are three cup size options: tall, grande, and venti. But what you might not realize is that there are two other sizes as well. First is an 8-ounce "short" cup, which is what the kid's hot chocolate is served in. You can ask for it for anything, though. Then there's the Trenta, which holds 31 ounces and is only for iced drinks.

Some amateur scholars believe that aliens built Machu Picchu. They find it difficult to believe that a people without iron tools, draught animals, or even the wheel could have lugged such large stones up the mountainside and built such magnificent structures. Archeologists and scholars agree, however, that the Incas, with their impressive engineering techniques and use of human labor, were more than capable of constructing the site without the assistance of outside (or otherworldly) forces.

The colon is where the majority of probiotics are found, but there are billions more in our mouths, oral cavities, nasal cavities, oesophaguses, gums, and pockets of our pleural cavity (surrounding our lungs). They reside in our rectum, vagina, gastrointestinal tract, and stomach. inside of joints, armpits, toenails, between toes, urinary tract, inside our urinary tract, and several more locations!

Chile, with slightly over 1300 volcanoes, is one of the countries with the most, and many of them are currently active. Cerro Arul, Cerro Hudson, and Villarrica are three of Chile's most visible and historically active volcanoes. They are all composite volcanoes, sometimes known as stratovolcanoes. Climbers from all around the globe like putting their abilities to the test on climbs up these volcanoes.

No, butterscotch and salted caramel aren't interchangeable. Brown sugar and butter are used to make butterscotch (sometimes it includes salt and vanilla). Granulated sugar, butter, sea salt, heavy cream, and vanilla are used to make the salted caramel.

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!).

There are only two ways to get to Machu Picchu because of its remote location in Peru's mountainous cloud forest. The first and most common method is to take a train from Cusco to Aguas Calientes (also known as Machu Picchu Pueblo) at the mountain's base. Then you can take a bus or walk the rest of the way up. The second option is to hike the Inca Trail.

Shimla likewise offers tomfoolery and experience alongside picturesque beauty. If you need to add more tomfoolery and experience to your outing to Shimla, you can take a shot at Ice Skating. Shimla has the biggest Ice Skating Arena in India. It draws in numerous travelers and local people who appreciate Ice Skating

Most of Germany views beer as merely a beverage to be enjoyed. But it's a way of life in Bavaria. The typical Bavarian consumes over 150 litres of beer annually! More beer is consumed in Bavaria than in any other German state. In fact, Bavaria is home to about half of Germany's breweries. In the entire Federal Republic, it has the highest density. The Essential Guide to Germany's Romantic Road is also recommended. Beer cellars and halls in Bavaria are enormous. It is a fundamental part of their culture and way of life. If you enjoy drinking beer, you must visit Bavaria and take a tour of every brewery, sampling beer from each one along the way.

Yes, indeed. When directing a laser beam through a container of water, a cool effect known as total internal reflection is used. Light is slowed by heavier particles in water as it passes through it, as detailed here. As a result, the laser beam is essentially “stuck” in the water.

The Sahara Desert is a vast desert in North Africa that includes portions of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia, and Western Sahara. It is the world's hottest desert, however, due to a lack of humidity, the temperature reduces throughout the night. The average yearly temperature is approximately 30°C although during the warmest months June- September the temperature can soar over 50°C. Temperatures can dip as low as -5 °C at night. Between October and May, when the weather is pleasant, is the best time to explore Tunisian Sahara. During the warmest months, several tour operators suspend operations.

Fish and other marine animals wouldn't exist without algae, which forms the foundation of the marine food chain.