A bell nipple is a pipe used for drilling operations, acting as a funnel to maneuver tools. It is commonly used onshore, but less so offshore. It is connected to blast arrestors for safety and can control the removal of fluids and mud. Other methods are used offshore. A bell nipple is a type of […]
A bellcrank changes the angle of suspension pieces or links, and can increase or decrease the ratio of a component’s effect on a suspension. It is used in steering systems for cars, boats, and race cars. The device can be used with wired or hard-wired hookup lines. A bellcrank is a device that changes the […]
Croup is a viral infection that primarily affects younger children, causing a barking cough and inspiratory stridor. The steeple sign, seen on an x-ray, indicates a blockage in the windpipe and can lead to proper treatment, including antibiotics or corticosteroid injections. However, it could also be a sign of a more serious condition requiring immediate […]
Electric bells use electricity and an electromagnet to produce sound. They have been used in telephones, level crossings, factories, schools, and security devices. New technologies have replaced them in many applications, but they are still available as specialty items. An electric bell is a type of bell mechanism that works with the use of a […]
The Liberty Bell is a symbol of American history, associated with events such as the War of Independence and the Civil War. It was ordered in 1751 to commemorate Pennsylvania’s first constitution, but was badly cracked and repaired multiple times. The bell weighs over a ton and strikes an E-flat note. It is displayed in […]
The circus bell is a heavy bar used in strongman competitions for the clean and jerk exercise. It requires strength, coordination, and balance and is named after old-time strongman displays in the circus. The circus kettlebell is a similar apparatus with a loop handle. The circus bell is a large bar that weighs 202 pounds […]
Peppers, both hot and sweet, have numerous health benefits including improving metabolism, insulin levels, pain control, weight loss, and endorphins. Capsaicin, found in hot peppers, is a vasodilator that widens blood vessels, improving circulation and reducing body fat. Sweet peppers are also nutritious, containing vitamin A, vitamin C, vitamin K, potassium, and lycopene. Even before […]
Alexander Graham Bell is often credited with inventing the telephone, but Antonio Meucci and Elisha Gray also played a role. Meucci created a device capable of transmitting voice over a distance, but did not pursue a patent. Gray and Bell both filed patents for the telephone, but Bell ultimately won the legal battle. Meucci is […]
A diving bell is an airtight chamber used to transport divers underwater. It was first described by Aristotle in the 4th century BC and modernized by William of Lorraine in 1535. The bell is lowered into the water, maintaining air pressure inside to prevent water from entering. It is raised and lowered by a cable […]
A bell curve represents a normal distribution of variables, with most values clustering around a mean and outliers above and below. It is used to determine if data is behaving predictably and to calculate standard deviation. A symmetrical bell curve indicates valid data. A bell curve is a graph that represents a normal distribution of […]
Bell makers produce and maintain bells, either by casting them in a foundry or shaping them for brass instruments. They require knowledge of metalworking and music, and can learn through apprenticeships or college classes. Bell making is a specialized career pursued by those interested in music and metalworking, with opportunities to work for companies or […]
The Whitechapel Bell Foundry in London, established in 1570, cast the largest bell for Big Ben and the Liberty Bell, both of which are famously cracked. The bells were made with fragile metal and are used for summoning legislators and public meetings. Located in east London, the Whitechapel Bell Foundry is Britain’s oldest bell maker, […]
Sleeves have evolved throughout history, from serving as handkerchiefs to pockets and status symbols. Different types of sleeves include the bell, Juliette, Virago, and Raglan sleeves, with the bell sleeve still popular today. Fashion is constantly changing, but old-fashioned sleeves may become popular again. A flared sleeve is a type of sleeve that hangs from […]
The closing bell signals the end of the trading session on a stock exchange, ensuring all traders stop simultaneously. It is often used metaphorically to refer to the end of a business day. The New York Stock Exchange still uses a bell to signal the start and stop of trading. On a stock exchange, the […]
The closing bell signals the end of the trading day on a stock exchange, and is used to ensure all traders stop simultaneously. It is often used metaphorically to refer to the end of a business day. The New York Stock Exchange still uses a bell to signal the start and stop of trading. On […]
The opening bell signals the start of a trading day on a stock exchange, with US exchanges ringing at 9:30 am EST. Historically, markets were opened with a hammer, but the New York exchange switched to a bell in 1903. The opening bell is now used for special events and promotions, and companies may schedule […]
When choosing a fire alarm bell, consider the size and noise level of the area, as well as the type of detection system and regulations. The alarm should have a loud sound and be covered by a warranty with proper installation instructions and customer service support. Explosion alarms are also available for buildings with explosive […]
Bell jars are glass containers with a rounded top and open bottom. They are used in scientific experiments, to protect delicate items, and to protect plants from frost and predators. Sylvia Plath’s novel The Bell Jar uses the jar as a metaphor for the repression of women in American society. A bell jar is a […]
The closing bell signals the end of a trading session on an exchange, and is used metaphorically to refer to the end of a working day. It ensures all traders stop trading at the same time, and is often accompanied by a warning bell. The New York Stock Exchange still uses a bell, and ringing […]
The opening bell signals the start of a trading day on the stock exchange, with the US bell ringing at 9:30am EST. Historically, the bell replaced the gavel in 1903. Special guests now ring the bell and some companies make major changes based on the opening bell to match market activity. Other countries have adopted […]
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