Concrete formwork involves creating temporary or permanent molds for pouring concrete structures. Plywood and sheet metal are common materials used, with plywood being versatile and easily manipulated. Roadform, made of steel, is another option but can be heavy and expensive. The main goal is to prevent concrete from leaking or overflowing during the setting process. […]
Fungal keratitis is a condition where the cornea becomes inflamed and swollen due to a fungal infection. Symptoms include red or sore eyelids, burning eyes, and reduced vision. Direct contact with plant matter or contaminated contact lenses can cause the condition. Treatment involves antifungal eye drops and hand washing to prevent the infection from spreading. […]
A sublease lease allows a tenant to rent their apartment to someone else, but the original tenant remains responsible for any damage or unpaid rent. The tenant must obtain written permission from the landlord and ensure all obligations are clear. Alternatives to subleasing include assignment and novation. A sublease lease is an agreement signed between […]
A penstock is a channel used to control the flow of water, often with a gate or valve. It originated in watermills and is now used in hydroelectric dams and flood control systems. Penstocks can be pipes or channels and require regular maintenance. They can also be used to control runoff in landfills and wastewater […]
Hikaru dorodango is a Japanese craft where spherical mud balls are polished to a high gloss. It was once popular with Japanese preschoolers and has been used to study the effects of simple play on learning. The process involves mixing dry earth and water, forming a small round capsule, adding dried dirt, and polishing with […]
Ultrasound is a diagnostic tool that uses sound waves to create images of the body. It is commonly used during pregnancy to show the fetal heartbeat, growth, and gender, but can also diagnose other conditions. Ultrasound is safe, non-invasive, and provides valuable information to doctors. One of the most useful diagnostic tools of the last […]
A turn indicator is a system of flashing lights on land vehicles and an instrument on aircraft that allows pilots to see if the aircraft is turning. It helps the pilot stay on course for landings and other maneuvers. The term gyro indicator refers to an aviation instrument that employs a gyroscopic mechanism to detect […]
Gas welding uses various gases and oxygen to ignite a torch, melting two materials together. Acetylene is the most common gas used. Skilled operators are needed to ensure a smooth weld, and there are other uses for the oxyfuel torch. Another type of gas welding involves using only one gas without oxygen, which is simpler […]
A palliative care supply store sells donated merchandise to support local community palliative care programs. Palliative care involves a team of doctors, nurses, counselors, and volunteers who help patients and their families. The store raises funds and awareness for the program, and also provides affordable items for the community. A palliative care supply store is […]
Bevel gears connect at various angles, unlike other gears. They are used in different applications, including car differentials. They have angled teeth and can be straight or spiral. Hypoid gears have non-intersecting axes and require custom lubricants. Bevel gears are used in garage and dam gates. A bevel gear is a gear designed to connect […]
Sanitary landfills are waste disposal facilities where garbage is covered by earth. They have drawbacks, including environmental risks, and must be carefully located, prepared, and maintained. Once closed, they must be monitored and reclaimed for safe use. A sanitary landfill is a waste disposal facility where compacted layers of garbage are covered by layers of […]
Baksheesh is a Persian term meaning “present” and is a part of daily life in the Middle and Near East. It can be confusing to Western visitors who associate it with corruption, but it has complex social and political conventions. Baksheesh can be given as almsgiving, a tip, or a bribe. It is an important […]
Registered Health Information Administrators (RHIAs) collect and analyze health data to ensure efficient, ethical, and lawful patient care. They need specialist skills in computer work, data preparation, and coding. RHIAs work in various settings and require a bachelor’s degree from an accredited program and certification. An RHIA, or Registered Health Information Administrator, works with health […]
Public economics aims to allocate resources to benefit all individuals in a market, with redistribution of wealth being a major tenet. A command economy or wealth redistribution are common methods used, but both have their challenges. Public choice is placed in the hands of individuals, but sustainability may be an issue. The public economic theory […]
Jam de lait is a French caramelized sauce made from sugar and cream or whole milk, often flavored with vanilla or hazelnut. It is used as a topping for desserts or spread on toast and originated in Normandy. It requires careful attention and stirring to avoid burning. Anyone with a sweet tooth will discover that […]
Wood fuel is a renewable energy source that has been used for heating and cooking throughout history. It is potentially superior to oil in terms of pollution and can be stored for later use. While concerns exist about the strain on forests, experts suggest a minor increase in wood heating could have environmental benefits. Wood […]
Ethanol alcohol is a clear, flammable substance made from fermented sugars and can be used for industrial or human consumption purposes. It can be produced from starches or synthetically. Denatured alcohol is used in the production of other products, while biofuels are made from crops. Ethanol is toxic to the human body and affects the […]
Entheogens are natural drugs with religious or shamanic use, including hallucinogens and mood-altering substances. They have been used for centuries to communicate with the divine, but their use is controversial. Entheogens can be dangerous and have adverse health effects. Some examples include kava, ayahuasca, peyote, mead, henbane, psilocybin, blue lotus, tobacco, fly agaric, hashish, and […]
Lumbar support belts provide back pain relief and are recommended for people who do a lot of lifting and bending. They range from simple models to specialized belts available with a doctor’s prescription. They can be worn under or over clothing and should be chosen with the help of a healthcare professional. Lumbar belts are […]
Automotive multimeters test car components, with less expensive models checking diodes, batteries, fuses, switches, solenoids, and relays. There are two types: analog and digital. For $50, higher grade models can measure duty cycle, pulse width, RPM, and temperature. Continuity and maximum amplification range are important features. An automotive multimeter is a handheld meter used to […]
