Anyone who has purchased any new tyres he will certainly have noticed the presence of little “hairs” made of rubber. But what are they for? It is sometimes said that their purpose is to indicate thetire wear, or reduce noise while driving, or again improve ventilation…but the reality is different and has to do with the production of the tyre! ...
There is no doubt: the ruff collar (or more simply “ruff“) is the unforgettable accessory when talking about Elizabethan fashion. History books and pictorial depictions of the time never forget – whether for Elizabeth I or William Shakespeare – to draw these gigantic fan-shaped collars around the heads. But where did this fashion come from, and who could wear it? ...
Inside the Guinness World Records (the books that have collected official records since 1955) there are thousands of different categories, even if over the last few 70 years old there are some that, for ethical and safety reasons, have been prohibited. Let’s see the main ones and the reasons behind their disposal. Gluttony challenges The decision to eliminate challenges related ...
In the northwestern region of the Chinese province of Hunan is what is called the Gate of Paradiseone of the most renowned natural wonders of the People’s Republic of China. We’re talking about a huge one bow natural (Tianmen Cave) of rock on the mountain Tianmen (Tiānmén Shāni.e. mountain of the celestial door), which from the perspective of the tiny ...
Steve Jobs speaks during Apple’s Worldwide Developer’s Conference, June 11, 2007. Credit: Ben Stanfield, CC BY 2.0, via Wikimedia Commons. Steve Jobs he was one of the greatest innovators of our time, a visionary who redefined the concept of personal technology and how we interact with the digital world. Born in San Francisco In the 1955 and grew up in ...
The electric motor it is one of the most revolutionary inventions in history, a turning point in the electrification of the world. At the center of this revolution is the rotating magnetic fieldthe fundamental principle that allows alternating current (AC) motors to operate. But who was responsible for this discovery? TO Galileo FerrarisItalian physicist and engineer, o Nikola Teslathe famous ...
Among the many questions relating to the terrible fires underway in Los Angeles, many have asked: “Why is the water that the planes drop on Los Angeles red?”First of all it is not water: it is a foam (sometimes even powder) and it is a so-called ”fire-retardant”i.e. a flame retardant. What are fire retardants used for? Their main function is ...
The April 24, 2013in the city of Savar in Bangladesh, a building called Rana Plaza collapsed leading to the death of more than 1100 people and to the wounding of another 2500. The building housed five different factories of clothing, destined for the foreign market, especially fast fashion. There were signs of structural failure, highlighted since the previous day ignored ...
Surely you have noticed that There are small raised dashes on the “F” and “J” keys of the keyboard. They were not placed there by chance: these small design features hide a fundamental function for those who frequently use the keyboard. These small reliefs in QWERTY keyboards, in fact, are not an aesthetic feature, but a practical tool that helps ...
The black cow inside the triangle, the pedestrian crossing the road on a blue background, the car skidding on the wet road: these are all drawings that drivers are very accustomed to, because they are depicted on signs that we often see on Italian streets and that we know how to recognize from afar. It is already less obvious, however, ...