Skip to main content

Discover the history of the invention of eyeglasses

 See all the letters right up there? If not, don’t be scared: an accessory that has long been part of our daily lives can help you in this task.

 

The history of eyeglasses dates back to the pre-Christian era. The first records of its use are in texts by the Chinese philosopher Confucius dated 500 BC. C. So, InventHelp glasses had no degrees and were used as an ornament or as a form of social distinction.

 

Although the magnifying properties of a curved piece of glass were known from at least 2000 BC. C., the manufacture of lenses is only possible in the Middle Ages, with the improvement made by the Arab mathematician InventHelp Inventions Al-Hazen of the fundamental laws of optics – part of physics that studies the phenomena related to light and vision.

 

At that time, InventHelp Idea inside the monasteries, InventHelp Patent beryl, quartz and other precious stones were cut and polished in order to produce the so-called reading stone, a very simple type of magnifying glass. In 1267, InventHelp Innovation the Franciscan monk Roger Bacon takes one of these reading stones to Pope Clement IV and manages to demonstrate InventHelp Technology its usefulness to those who have some difficulty with eyesight.

 

The first pair InventHelp Inventors of lenses with degrees joined by iron hoops and rivets appeared in Germany in 1270. These primitive glasses have no temples and are fitted only over the nose. Shortly thereafter, InventHelp Invention Ideas models similar to the German appear in several Italian cities.

Comments

Popular posts from this blog

388hero agen slot online terpercaya pasti menang pasti bayar

  388hero https://13.250.221.149/ merupakan situs slot online yang telah menjadi bandar slot online terpercaya dengan beragam permainan judi yang menarik seperti slot online dan casino online yang telah kami sediakan akan menjamin anda betah main berlama-lama di situs kami. Tidak hanya permainan yang menarik, setiap permainan slot online yang kami sediakan sangatlah mudah untuk dimainkan sehingga permainan yang tersedia memiliki tingkat kemenangan yang jauh lebih mudah dibandingkan permainan di situs slot online lainnya yang pernah anda mainkan. Cukup dengan deposit senilai 10 ribu anda bisa memenangkan ratusan ribu hingga puluhan juta rupiah tanpa harus bersusah payah. Menyediakan Beranekaragam Taruhan Judi Online Terpercaya

8 ways to avoid everyday business stress

 There is no better challenge than to undertake! After all, InventHelp Idea the entrepreneur must deal with many InventHelp Invention Ideas   obstacles in his journey that is nothing but a great opportunity to grow and develop professionally.   This way you can gain new knowledge, InventHelp learn to be resilient, develop skills and competencies that will help you shape your style of running a business through InventHelp Innovation innovation ideas and if all goes well the reward will be a success!   However, InventHelp Patent not everything is perfect. Behind this routine is a lot of hard work on innovation ideas that needs to be done and often is not always the most enjoyable, InventHelp Inventions   where you will InventHelp Technology have to face some bureaucracy and demands for the business to work! Given this scenario, InventHelp Inventors we have prepared here 8 tips for any entrepreneur to avoid business stress.

InventHelp: How do you turn your invention idea into a product?

  New inventors these days have far more support and guidance available to them than inventors had many decades ago. This is good news for those who are new to inventing, as they do not have to worry about not knowing what to do or where to turn as they go through the new invention process. However, it does mean finding the right new invention services provider if you want the right level of support and assistance as you embark upon your first exciting journey.   Most new inventors want a provider with plenty of experience within the industry, as this means that they have a proven track record and solid reputation. As a result, many turn to the team at InventHelp, which has helped many new inventors with their first invention experiences. Of course, if you know little or nothing about the company, you need to make sure you do your research. This will make it easier for you to make an informed decision.   One of the ways in which you can learn more about InventHelp is by l...