What’s a cogwheel?

Gear wheels, also known as gears, are mechanical parts found in many machines including automotive transmissions. They have teeth or cogs that allow them to transmit power and direction to other gears. This concept has been understood for millennia and was used in the Antikythera Mechanism, an ancient Greek astronomical device. During the industrial revolution, […]

What’s a plantar fasciitis sock?

Plantar fasciitis is an inflammatory condition that causes extreme heel pain, commonly caused by long periods of standing, excess body weight, and fallen arches. Orthotic devices such as plantar fasciitis socks can help stretch the Achilles tendon and relieve stress on the plantar fascia, reducing pain and improving flexibility. However, people with certain health conditions […]

What’s a local shop?

Neighborhood stores cater to local needs and carry unique merchandise. They used to be social hubs, but declined with the rise of chain stores. However, recent efforts to revitalize them have led to increased competition with chain stores and a return to local culture. Neighborhood stores are locally owned businesses designed to meet the demands […]

What’s a Washcoat?

Washcoats are thin layers of paint or sealer used in catalytic converters and woodworking. They vary in composition and are applied before staining wood to prevent blotchiness. Dilution is necessary, and application depends on the type of wood and desired outcome. A washcoat is a very thin layer of paint or sealer. Washcoats are used […]

What’s an Underdrain?

Underdrains are drainage systems that remove standing water while preventing waterlogging. They prevent erosion, sinkholes, and breeding grounds for insects. The system consists of perforated pipes over gravel and can be used in agriculture, public parks, and gardens. Maintenance is required to clean and check pipes. Municipalities build sub-channels for public areas, while homeowners can […]

What’s an Acetylene Generator?

An acetylene generator produces a constant supply of acetylene gas for welding and construction work. There are two types, one using a hopper system and the other feeding water onto carbide. Safety measures must be taken due to the explosive nature of the gas. The generator should be housed away from the work area, and […]

What’s water sanitization?

Water sanitization is crucial for safe drinking, cooking, and bathing. Over a billion people worldwide lack access to clean water, leading to life-threatening illnesses. Common methods of water treatment include flocculation, filtration, adsorption, ion exchange, and disinfection. Boiling and adding bleach can also make water safer for use. Well water may require testing and filtration. […]

What’s Ghost Riding the Whip?

“Ghost riding the whip” is a dangerous driving stunt that involves dancing on or around a moving car. It originated in California’s hyphy subculture and became popular with fans looking for thrills. Although illegal, enforcement is difficult, and participants choose times and places when patrols are scarce. The stunt is similar to car surfing and […]

What’s Dental Erosion?

Dental erosion is the permanent loss of tooth due to acid degradation. It cannot be reversed, but can be stopped and treated with modern techniques. The most common cause is the consumption of acidic foods and drinks, regurgitation of stomach acids, and exposure to pool water. Good dental hygiene habits can minimize the chances of […]

What’s equipment leasing?

Equipment leasing allows companies or individuals to use equipment without the liability of ownership. It is useful for temporary needs and can provide access to up-to-date equipment. Leasing also offers tax benefits and easy replacement in case of malfunction. It is available for various industries and can be converted into a new lease if both […]

What’s a cold joint in concrete?

A cold joint is a discontinuity between layers of concrete caused by curing before the rest is poured. It can cause visual defects, moisture infiltration, and compromised strength. Avoidance or mitigation is possible through waterproofing, surface preparation, rebar insertion, or strategic placement. A cold joint is an unwanted discontinuity between layers of concrete that occurs […]

What’s Kwanzaa?

Kwanzaa is a seven-day festival celebrating African American ancestry and community. It was created by Ron Karenga during the civil rights movement and emphasizes unity and community through seven principles. Kwanzaa can have an African touch and be celebrated alongside Christmas and New Year. Christians may incorporate the kinara, a special menorah, into their celebrations. […]

What’s a Zen Koan?

Zen koans are stories, parables, or statements used in Zen Buddhism to transcend everyday thought patterns and arrive at a more enlightened state of mind. They pose questions or puzzles that resist rational thought and need to be meditated on to create greater spiritual awareness. There are many examples of koans, including “What is the […]

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