The oldest pair of glasses in the museum can be traced back to the Ming Dynasty, nearly 500 years ago when the technology of making glasses was quite mature. The main beam connecting the two circular frames was made of refi...
The history of philosophy through a feminist magnifying glass: Distortion or clarification?The aim of this dissertation is to contribute to the evaluation of the feminist approach to the history of philosophy. Feminist philosophers have attempted to reread and reinterpret texts of the philosophical ...
Magnifying Glass With Light Pro v3.3 (Old Version) ► Updated: November 6, 2014 ► What's New in Version 3.3: Optimized for iPhone 6 and iPhone 6 Plus Fixed compatibility issues for iOS 8 Magnifying Glass With Light Pro v3.2 (Old Version) ► Updated: May 12, 2014 ► What's...
This simple magnifying tube gave birth to the modern microscope.First MicroscopeGrinding glass to use for spectacles and magnifying glasses was commonplace during the 13th century. In the late 16th century several Dutch lens makers designed devices that magnified objects, but in 1609 Galileo Galilei ...
This piece of rock crystal from the Neo-Assyrian culture may have been used as a magnifying glass, or as a burning-glass. (via Wikimedia Commons/Geni) Emperor Nero in the 1st Century A.D. The Emperor have watched the gladiatorial games using an emerald as a lens. (via TVMovie/Screensh...
陶瓷的发展历史（Developmenthistoryofceramics）陶瓷的发展历史（Development history of ceramics）Development history of ceramics The invention of ceramics is an important process of human civilization, is a human use of natural products, according to a new thing himself created, a long history of China ...
Click an item below, or explore the menus at the top of the page. To search the site, click the magnifying glass icon above. FIRST STEPS The two-minute Overview video on YouTube gives you a visual introduction to The Family History Guide website. ...
A simple microscope is the earliest type of microscope. It has only one lens and functions as a magnifying glass. Compound microscopes use two convex lenses to obtain higher magnification. The first compound microscope was invented in the early 1600s.
Someone also found that such a crystal would focus the sun's rays and set fire to a piece of parchment or cloth. Magnifiers and "burning glasses" or "magnifying glasses" are mentioned in the writings of Seneca and Pliny the Elder, Roman philosophers during the first century A. D., but...
History of the operating microscope: from magnifying glass to microneurosurgery. The advent of the microscope in the operating room revolutionized neurosurgery. We traced the origin and evolution of this important invention from the fir... T C,Kriss,V M - 《Neurosurgery》 被引量: 91发表: 1998...