Fracking is a technique of hydraulic fracturing used to extract crude petroleum materials. It is believed to contribute to minor earthquakes by weakening rock layers and reducing their structural integrity. Evidence for a direct link between fracking and earthquakes is incomplete, but areas where fracking is practiced have seen an increase in earthquakes. The mechanism […]
A clam rake is a tool used to collect clams from the ocean floor. They come in different sizes and designs, with some having a basket attached. The type of rake used depends on the hardness of the sand or mud. Clamming can be done recreationally or commercially, with clams also being farmed and harvested […]
5S manufacturing is a lean practice that aims to improve workplace safety, productivity, and product quality. The five steps, starting with “S,” are seiri, seiton, seiso, seiketsu, and shitsuke. The steps involve sorting, arranging, cleaning, standardizing, and sustaining the workplace. The practice is used globally in both manufacturing and non-manufacturing organizations. 5S manufacturing is a […]
Many common garage and backyard tools are actually farm tools, with spades, rakes, hand cultivators, plows, sprayers, and knives all playing important roles in agriculture. While some tools may look similar, they have different functions, and their designs can vary depending on the farm’s needs. Many items commonly found in garages and backyards are actually […]
Sheet glass is a flat and distortion-free type of glass used for windows, mirrors, and tables. It can be made through a roller or flotation process, but can be brittle and expensive to replace. It is available in different weights and thicknesses, and can be purchased through glass companies or hardware stores. Buyers should consider […]
A block is a steel casing with sheaves that assist in lifting loads. It allows for flexibility and safety in lifting operations, facilitates load rotation, and enables the use of multiple hoist sheaves for efficient and safe operation. It can also include peripheral devices for special applications. A block is an assembly to which the […]
Steel mills create steel and iron by heating raw materials in a cauldron. The industry was once booming in the US, but foreign competition, rising costs, and deregulation led to many closures. Working in a steel mill is hard, but pays well. The decline of the industry also hurt other industries like railroads and coal […]
High-density polyethylene (HDPE) is a tough, chemically non-reactive plastic made from petroleum. It is denser than other polymer plastics due to its linear crystallization structure. HDPE is used in packaging, storage systems, and wood plastic composites. It is not biodegradable but can be recycled. Concerns exist about potential toxins and leeching hazards. High-density polyethylene (HDPE) […]
Hulunbuir, China is the largest city in the world by area with over 100,000 square miles, followed by Jiuquan, China. Altamira, Brazil is the largest city outside of China. Shanghai, Mumbai, Karachi, Delhi, and Istanbul are the most populated cities, while Hun, Croatia, and Vatican City are the smallest. Yakutat City and Borough, Alaska is […]
Dermatomyositis is a rare disease that affects skin and muscles, with symptoms including a purple rash, muscle pain and weakness, and calcium deposits under the skin. There is no cure, but treatment involves corticosteroids, immunosuppressants, and physical therapy. Early intervention is important. Dermatomyositis is a relatively rare disease that damages both skin and muscles. It […]
Executive decision support systems assist business executives in making informed decisions by synthesizing information from various sources into an easily understandable format. These systems are becoming more advanced and accessible to key employees, allowing for a more collaborative decision-making process. An executive decision support system is a type of computerized information system designed to assist […]
Saddle tanks are commonly used in automobiles, with some designs featuring two external fuel tanks, while others have a single tank with dual chambers. They are also used for storing and transporting water or chemicals, and in small steam engines for industrial use. Early submarines used external ballast tanks, but post-war designs moved them inside […]
Boorelu is a sweet Indian dessert made from fried balls of dal batter filled with a mixture of dal, jaggery, coconut, cardamom, and dried fruit. It can also be made with savory ingredients like meats and spices. Boorelu is an Indian dessert that resembles the American donut hole, with decidedly different ingredients. A popular festival […]
HFC gases were developed as a replacement for CFCs, but they contribute to global warming. Scientists are exploring alternatives and working with companies to reduce their release and address environmental damage. An HFC gas is a gas that can be used in a number of different applications. HFCs are commonly used, for example, as propellants […]
Medical waste is created by healthcare facilities, research facilities, and pharmaceutical companies. It is divided into four categories: infectious, radioactive, hazardous, and general waste. Infectious waste must be managed and contained to avoid the spread of infections. Disposal is governed by the Resource Conservation and Recovery Act and is typically done through incineration or landfilling, […]
Spray paint is a liquid paint that can be dispensed via a spray nozzle, commonly found in cheap and easily transportable aerosol cans. It is used for various painting applications, including graffiti. Airbrushes and spray guns are also forms of spray paint. However, all forms carry potential health risks and should be used in well-ventilated […]
Styrofoam is a trademarked expanded polystyrene foam used for insulation, crafting, and packaging. Its closed cell structure provides high R-value, making it ideal for insulation. It is waterproof, durable, and can be covered with different materials. However, its impact on the environment should be considered. Styrofoam is a trademark of the Dow Company and is […]
A catch basin is a part of a sewer system that traps debris and prevents it from entering drainage pipes. It has a sloping inlet, a grate to trap large debris, and a bottom trap to collect small particles. Regular maintenance is required to prevent blockages. Catch basins can also prevent backflow of gases and […]
A thermal break is a material or trapped dead air that slows or stops the transfer of heat between two materials. It is used in insulation, clothing, windows, and buildings to save energy and prevent heat loss or gain. A thermal break is a low conductivity element placed between any two materials in an attempt […]
Interference fit is a method of joining parts together by creating a joint where the two parts are slightly different in size, creating friction that holds them together. The strength of the bond can be controlled by adjusting the amount of interference. Thermal expansion can also be used to create an interference fit. Proper fit […]
