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Ground balance
Two of Chinas greatest empires, the Tang and the Song, were known for their unmatched sophistication and technical advances. Many of the advances were attributed to the systems of education that were put in place in both empires. The Tang Empire was the first to implement a large-scale system of e......
1049 
Abigail
Causes and Repairs of Engine Oil Leakage
Car Engine Oil Leaks: Causes, Problems and How to Fix
Engine oil leaks can lead to serious problems for your car, including decreased fuel efficiency and engine damage. It is important to identify the source of the leak and to address it quickly in order to avoid further damage. In this article, ......
Introduction to Coating Performance Testing
Introduction to Coating Performance Testing
Coating performance testing is a process used to evaluate the properties and characteristics of a coating product. Coatings are used for a variety of purposes, from protecting surfaces from corrosion and UV radiation to providing a decorative finish. In......
Perforated skin
Blanking and punching are two of the oldest yet most important steps in sheet metal fabrication. Blanking is best described as “cutting out” that involves cutting completely through the material. Punching involves raising the material, typically with a defined shape, like a circular or square ho......
Tongue extrusion
The process of tongue pressing is used to permit the discovery of underlying areas of the tongue that may be affected by imbalances in the body. With an adequate examination of the tongue, practitioners will be able to identify underlying health problems before they are visible to the naked eye.
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piercing needle
Percutaneous Needle Aspiration
Percutaneous Needle aspiration (PNA) is a medical procedure that involves inserting a sharp, hollow needle into a tissue or organ to acquire a sample for diagnostic purposes. It is mostly used for the aspiration of pus and other fluids for diagnostic and therapeutic......
Acupuncture machine
3D Manual Tattoo Machine
Tattooing has been around for hundreds of years, developed by numerous cultures from around the world. There have been many advancements in the art of tattooing, and the latest technology to hit the market is the 3D manual tattoo machine. This type of machine is relativel......
Normalizing
Global Warming
Global warming is a spreading phenomenon that is affecting the environment and the globe. It is occurring due to the effects of climate change that is being caused by the use of fossil fuels, the burning of coal, and other activities that produce carbon dioxide and other gases. Thi......
Two roll cross rolling piercing
Roll Piercing
Roll piercing is the process of forming a hole in a sheet of metal. This is done by passing the sheet between two rollers which have a punch which is slightly larger than the desired hole. The sheet is drawn through until the punch penetrates the metal, forming the hole. It is most ......
Protective pouring (continuous casting)
Continuous Casting
Continuous casting, also known as strand casting, is a process used to manufacture steel products. Continuous casting is commonly used to create large numbers of parts quickly and economically. The process involves the steel being heated, then poured into a mould and allowed to......
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