Limes float, but lemons sink. Because limes are denser than lemons, they sink to the bottom of a glass, whereas lemons float on top. This is the one that has been in front of our faces (or rather, in our glasses) the entire time! Check out these other things to ponder that you probably never considered before.

This steep area has approximately 100 active volcanoes, accounting for nearly 10% of all active volcanoes in the globe; the environment is ideal for skiing and hiking. It is also a popular destination for trekkers, as Mount Fuji is one of their sacred mountains. Japan is also well-known for earthquakes.

Flamingos can fly up to 600 kilometres at a speed of 50–60 kph thanks to their dimensions and light body bulk.

13 frames per second is the minimum speed required by the human brain to process consecutive images as movement. Anything less, and the human brain will treat each frame as a separate image. Because 16 FPS is so close to 13, old movies appear choppy and unnatural.

The Hurt Locker' broke another film industry record when it bagged six Oscars out of a total of nine nominations - including the coveted Best Picture gong - as the lowest-grossing movie to ever win at the Oscars. It is estimated to have earned $21 million at the box office, that's less than 2% of what its competitor 'Avatar' made in ticket sales in the same year.

Pablo Picasso, widely regarded as one of the twentieth century's most influential artists, created numerous renowned and beloved works of art. Les Demoiselles d'Avignon was painted in 1907 and depicts five naked female prostitutes in a brothel on Barcelona's Carrer d'Avinyó street.

When a cell is injured or infected, it will self-destruct through a process known as apoptosis. Apoptosis acts to guarantee appropriate growth and regulate the body's natural mitotic process. Cancer can emerge as a result of a cell's failure to perform apoptosis.

Your carpet, curtains, bed, and upholstered furniture's inner layers are a dust mite's paradise. Dust, or should I say your dead skin, tends to gather there. Be not ashamed; it is nearly impossible to completely eradicate dust mites from most homes. According to a study published in The Journal of Allergy and Clinical Immunology, at least one bed in about 80% of American homes had detectable levels of dust mites.

Why are melons so costly in Japan? These valuable fruits play an important part in the country's gift-giving tradition; for example, samurai would present tangerines or melons to their shogun as a symbol of appreciation. Farmers now diligently tend to these fruits by hand, adding to their attractiveness. Crown melons are one of the most well-known types and may cost more than $200 per pound.

Amaltas is used to ease pain in those who have trouble passing urine and can only do it with effort. It makes it easier for them to urinate. The root of the cassia fistula tree should be made into a paste by soaking it in water overnight. Every morning, combine this with ghee and eat it. Your anxiety will subside as a result. This is a powerful cassia fistula medicinal use.

Indonesia, often known as the Lost World of Asia, is a haven for increasingly uncommon, unique, and simply stunning animals that are rapidly approaching dangerously dangerous levels of extinction. These animals include the Sumatran Tiger, Sumatran Rhinoceros, Komodo Dragon, Orang-utans, anoa (the world's smallest buffalo), the lovely Merak or Peafowl, sea turtles, and Tarsius Tarsier (a small, adorable, big-eyed primate not unlike Dobby the house elf in Harry Potter). Surprisingly, while accounting for only 1% of the Earth's surface area, Indonesia's rainforests are home to 10% of all known plant species, 12% of all known mammal species, and 17% of all known bird species.

Mirrors can reflect both light and matter. These mirrors are referred to as atomic mirrors. They trap slow atoms or focus an atomic beam by using an electromagnetic field to reflect neutral atoms.

The official language of Vatican City is Italian, which is used for all official issues. Although Italian is the lingua franca, the Holy See utilises Latin as its official language. The Vatican is also regarded as the de facto keeper of the Latin language. So it may not come as a surprise that the Vatican Bank's ATM provides instructions in Latin.

Have you ever thought of a tongue getting fat? But it gets fat when the other parts of the body get interesting, right? There is a correlation between tongue fat volume and obesity. So, the tongue also gets fat when the body of a person does. Notice this from now on!

Due to cost or a lack of infrastructure, 70–75 percent of the world still doesn't use toilet paper.

Each person, the Swiss consume 36 litres of wine, 56.5 litres of beer, and 8.4 litres of pure alcohol per year. And here are new figures that suggest consumption has actually decreased! It is common for 20% of Swiss individuals to binge drink (4-5 drinks in one sitting) at least once a month.

For the past 15 years, the usage of solar energy has risen at a pace of 20% every year. According to Yale Environment 360, the globe installed 30% more solar energy capacity in 2017, resulting in the production of 98.9 gigatonnes of solar energy that year. Despite its seeming size, this quantity of energy only amounts for 0.7 percent of the world's yearly electrical use.

Centipedes are skilled hunters due to their incredible speed and venomous forcipules. Smaller species primarily consume mollusks, worms, insects, and spiders. Larger species frequently eat small birds, bats, and frogs as food. Even other centipedes will be eaten by some centipedes! Their meals are somewhat dependent on what is available to them. Some centipedes will scavenge for food in a pinch, but most of the time, they will hunt for it. Centipedes hunt for prey with the help of their antennae and catch it with their speed. Then, after encircling their prey, they wait for their venom to take effect before consuming their meal. Really brutal, no? However, it does the job.

After 21 years of marriage, Queen Victoria became a widow. In 1861, her beloved Prince Albert died from typhoid. Consumed with grief, Victoria would spend her next 40 years of life wearing only black clothing, and would rarely be seen in public.

Tendulkar was born on April 24, 1973, at the Nirmal Nursing Home in Dadar, Bombay, to a Maharashtrian family. His father, Ramesh Tendulkar, was a well-known Marathi novelist and poet, and his mother, Rajni, worked in the insurance industry. Tendulkar was named after Ramesh's favorite music director, Sachin Dev Burman.

Arsenal on the Kyiv city metro line (Sviatoshynsko - Brovarska Line) is currently the world's deepest metro stop. It is 105.5 meters deep. Escalators transport you deep underground so that you can catch the train. Arsenal had to be 105.5 m deep because it had to bypass the Dnieper River, which rises above and surrounds Kyiv. You will ride the escalator for five minutes to reach 105.5 m deep down the station.

Luckily, lots of locals speak English so don’t fret if your Mandarin is less than fluent.