Have you ever wondered about the meaning of the elbow patch, the secret of the cut lines on the bread's body, or why the ice cream is in a cone?
Some people think that this arrangement of letters helps you to access the most frequently used keys with ease. But that is only part of the truth. On the original typewriter, the letters are arranged alphabetically. However, this arrangement of keys makes it difficult to type quickly because the old typewriter will easily get stuck. That's why often used letters must be far apart.
Then, the familiar QWERTY keyboard layout appears. It's not perfect, but people don't want to change it because they're used to it.
This fashion trend initially appeared on military clothing. Soldiers have to crawl on their elbows and the fabric will tear easily. That is why the elbow is covered with a layer of fabric.
Later, paparazzi also used elbow pads for their clothes, making photography more convenient. And after the 1950s, students at many American universities borrowed the idea and turned it into a real fashion trend.
At the end of the 19th century, ice cream was sold in glass cups. The seller rinses them out with water, before another customer reuses them.
However, a simpler solution appeared in 1904. Due to the very hot weather, people crowded into buying ice cream, but the seller did not have enough glasses for all. A nearby waffle stand was dull. The waffle seller quickly rolled one of his waffles into a cone and handed it to the ice cream vendor.
Everyone is happy with this result, especially the doctors. Because these glasses are one of the reasons that can make TB spread.
The little black dot between the flash and the camera on an iPhone is the noise-canceling microphone. It is placed there to filter out ambient noise and this is especially useful in noisy environments like crowds or public places. It helps the phone to partially eliminate background noise and keeps your voice clear.
The original sneaker was mainly for basketball players. The rubber at the top has the effect of protecting users' toes from accidents in the game. Unlike now, this nose was then made from very hard rubber. In addition, they also have a darker color.
Nowadays, they are often white as a highlight to decorate modern sports shoes.
These holes allow air to circulate and provide a form of ventilation for the user's feet. This prevents you from sweating.
This little detail is a very useful part, which helps any laptop or computer device work correctly. It is called a ferrite bead, which eliminates electromagnetic interference in electronic circuits. It is one of the simplest and least expensive types of noise filters, and can be easily installed on existing electronic cable systems of telephone lines, computers, TVs, music players and DVDs.
This is not a sign for the blind as many people think. Everything is much simpler. These points are used in the production process to record a sample code and mark a defective packaging.
In fact even the baker could not give a general opinion on this issue. Some people say that they cut the top of a bread so it doesn't crack in the oven. But others claim that it was made for aesthetic reasons. The second reason seems more plausible because in fact there are many types of bread without this cut and they never cracked.
In the mid-20th century, a shoemaker named Nils Tveranger created this type of product inspired by Norwegian fisherman's footwear. Fisherman's shoes with tassel can be tightened, thus helping to fix each shoe on the foot.
Tveranger decided to combine Indian fisherman's shoes and Indian leather shoes and create this model. Over time, tassels quickly lost their practical use and became a beautiful decorative accessory.
A lot of people notice the existence of this small ring on their shirts. However, so far there is no general opinion about its actual use. According to one version, the ring on a man's shirt can be used to attach a tie. Another version claimed that it was designed to hang a coat on a hook.
In 1996, Scottish inventor James Goodfellow came up with the idea of creating a PIN to protect access to people's bank accounts.
Initially, this code contained 6 digits. But Goodfellow's wife complained that she often forgot it. That is why he shortened it to a modern version with only 4 digits.
In medieval England, people kept their money in secret clay containers called "pygg jars " , derived from the word "pygg" which is an orange clay. Over time, these vases disappear, but the word combination still exists. Soon, "pygg" turned into "pig" and people started to create "piggy banks" that look like pigs.