Curiosity!

Arguably, the first fast food restaurants originated in the United States with A&W in 1919 and White Castle in 1921. Today, American-founded fast food chains such as McDonald's and KFC are multinational corporations with outlets across the globe.

But, yeah who cares about being the first as long as your favorite one still wins!

The common hippopotamus (Hippopotamus amphibius), or hippo, is a large, mostly herbivorous, semiaquatic mammal native to sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus (Choeropsis liberiensis or Hexaprotodon liberiensis). The name comes from the ancient Greek for "river horse".

The color of Hippo's milk is bright pink. The reason why it is pink is that hippo secretes two kind of unique acids called “Hipposudoric acid” and “Norhipposudoric acid“. The two acids got their names from the word Hippopotamus.

Amazing, right?

Nowadays, marathon lovers have taken a step higher in their marathon. 21km and 42km is no longer the limits. Human strength has gone beyond the limit.

However, have you ever wondered how long it would take you to run all around the world?

Theoretically speaking,  calculating the Earth circumference using the formula of 2*Pi*r would result in the Earth's total length of about 40,030 km.



Now is up to you to decide the amount of running per day. If you run a marathon 42.2 km per day, you'll be done in around 2.5 years.

Lenticular clouds (Altocumulus lenticularis in Latin) are stationary clouds that form in the troposphere, typically in perpendicular alignment to the wind direction. They are often comparable in appearance to a lens or saucer or even UFO.

A lenticular cloud is a lens-shaped cloud that normally develops on the downwind side of a mountain or mountain range. This occurs when stable, moist air flows over a mountain, creating a series of oscillating waves.

Lenticular clouds have been mistaken for UFOs (or "visual cover" for UFOs), particularly in the shape of a "flying saucer".

So next time you see Lenticular clouds in the air, you know that it is not even a hint of UFO!

Diapers have been worn throughout human history. They are made of cloth or synthetic disposable materials. Cloth diapers are composed of layers of fabric such as cotton, hemp, bamboo, microfiber, or even plastic fibers such as PLA, and can be washed and reused multiple times. Disposable diapers contain absorbent chemicals and are thrown away after use.




Some brands enhance the inner lining with aloe and vitamin E, skin-friendly compounds that are often found in diaper rash creams. The absorbent center contains wood pulp and super-absorbent polymers, usually sodium polyacrylate.

J.K Rowling was famously rejected by a mighty 12 publishers before Harry Potter and The Philosopher's Stone was accepted by Bloomsbury - and even then only at the insistence of the chairman's eight-year-old daughter.

So, success does not necessarily fall at the first try right?

The human genome is the complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. Human genomes include both protein-coding DNA genes and noncoding DNA.

Before the completion of the human genome project, many scientists were expecting to find 100,000 or more genes in our genome. This was based on the assumption that because we are one of the most complex creatures on Earth we should have lots of genes. However, it turned out we only have around 24,000 genes.

Hot Chili peppers originated in Mexico. After the Columbian Exchange, many cultivars of chili pepper spread across the world, used for both food and traditional medicine.

It is an irritant for mammals, including humans, and produces a sensation of burning in any tissue with which it comes into contact. Capsaicin and several related compounds are called capsaicinoids and are produced as secondary metabolites by chili peppers, probably as deterrents against certain mammals and fungi.

The Tropic of Capricorn lies at 23.5° South of the equator and runs through Australia, Chile, southern Brazil, and northern South Africa. All of those countries, Brazil is the only country that passes through both the equator and a tropic!

So when you are asked of what country crossed by both the equator and the Tropic of Capricorn, now you know the Answer!

Sudoku which stands for Japanese word has a meaning of Digit-Single and was originally called Number Place). Sudoku is a logic-based with a combination number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 small grids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.

Believe it or not, there are a total of 6,670,903,752,021,072,936,960 possible solutions, yet when mathematicians took away rotations, reflections, permutations and relabeling, which takes away the same puzzle in just a different form, the number of solutions was 5,472,730,538.

Well, having 5 Billion solutions for a simple-minded but yet mind-boggling game is still amazing right?