Africa has just under 15% of the world’s population, with 75% of its territory uninhabited. The continent faces a crisis as its population could reach 2 billion by the mid-21st century, leading to food and water shortages. Nigeria is the most populous nation, while Seychelles is the least populated. Just under 15 percent of the […]
E*Trade is an American company that offers online stock brokerage services. It was founded in 1991 and offers a range of investment tools, including stocks, bonds, mutual funds, and stock options. The company attempted to buy out or merge with other discount brokers, but was unsuccessful. E*Trade offers access to online training resources and expert […]
A propeller shaft is used to turn a propeller on watercraft, taking rotation and torque from the engine and feeding it to the propeller. Engineers aim to create a strong, durable, and light shaft, while considering the environment it will be used in. The propeller generates enough thrust to make a heavier-than-air object fly. A […]
Pinna ragù is a French and German dish made with various meats, including veal, sweetbreads, chicken, and fish, cooked in broth and thickened with a roux. It is served with cheese and can be prepared in a conch shell. Variations include using fewer types of meat and adding cream or butter to the sauce. Pinna […]
Sandblasting is the process of using fine particles at high speeds to clean or etch a surface. Sand is no longer used due to the risk of lung disease, and other materials are used instead. Sandblasting is used for cleaning surfaces and etching designs into glass. It was patented in the US in 1870 and […]
A strongback is a construction technique that adds secondary support to improve the strength of a structure. It can be used in commercial buildings, homes, and boats to reinforce key points and prevent collapse. It should be seen as a backup or support to the main element in the design. Also known as a strongback, […]
Space advertising includes advertising in space and related to space, with limitations imposed by many nations. Companies use space advertising to attract customers and investors, including through souvenirs and marketing campaigns. Intrusive space advertising is banned due to concerns about visual pollution and safety hazards. Mounting large, visible advertising in space is a significant challenge. […]
A compressor bypass valve relieves pressure from the intake system on engines, found in turbocharged and supercharged automobile engines, aircraft engines, and some train engine designs. It helps route pressure generated within the engine to the non-pressurized end of the intake system and prevents compressor surges. The valve’s primary function is to allow pressure to […]
Tuna tataki is a Japanese dish made with thinly sliced and lightly seared raw fish, usually garnished and served with a dipping sauce. It is prepared using the tataki method and can be made with any variety of tuna, best with a thick fillet. The dish is typically served with side dishes and a dipping […]
Motors convert electrical energy into mechanical energy to act on a load. It’s important to match the engine load to the engine to avoid damage or inefficiency. Motors can be classified by power, voltage, current, and temperature. Oversized motors are an unnecessary expense, while undersized motors can cause damage. Motors can be designed for continuous […]
A shipyard builds, maintains, and repairs ships of various sizes. They are typically located near waterways and employ skilled tradesmen and specialized equipment. Military and civilian shipyards are separated, and famous shipyards include Harland and Wolff and Blohm und Vass. A shipyard is a facility for building, maintaining, and repairing ships and vessels that can […]
Pepper Jack Cheese is a blend of Jack cheese and hot peppers, popular in the American West. It can be used in a variety of recipes and pairs well with barbecued meats. The quality varies, with artisanal producers creating outstanding cheese while mass production can result in a less exciting product. Pepper Jack Cheese is […]
Dielectric testing is necessary to ensure electrical components have adequate insulation to protect users from electric shock. The most common test is the dielectric breakdown test, which monitors current leakage to determine if insulation has failed. The dielectric strength test is also conducted to detect defects during manufacturing. Dielectric testing is an evaluation process performed […]
Hemlock timber is a high-quality lumber suitable for woodworking and framing. It has a uniform tone and appearance, but low resin makes it less weather-resistant. Hemlock lumber can be shaped easily and takes paints and stains well. Costs vary by grade, and buyers should inspect the lumber upon delivery. Hemlock timber is produced from trees […]
Sphingomonas is a versatile and hardy bacterial genus that can survive in various environments with little available nutrients. It can be used in bioremediation and biosynthesis, but some species can cause infections in humans. Sphingomonas is a bacterial genus with at least 20 known species and a wide variety of uses and applications. As with […]
Federal tax relief is offered to citizens who are unable to pay their federal or state taxes due to valid reasons such as job loss or divorce. There are four main types of relief, including an Offer in Compromise contract and Non-Collectable Status. To receive relief, an appeal must be filed with the IRS or […]
TVP is a meat substitute made from soy flour, with a texture similar to ground beef. It is available in various forms, including frozen and canned products, and can be used in many recipes. TVP is a healthy option with a longer shelf life and lower fat and cholesterol content than ground beef. TVP, or […]
Polyurethane is a versatile material that can replace various substances in different industries. It’s made by combining diisocyanate and diol, resulting in a base material that can be liquid, foam or solid. Polyurethane can be elastic or stiff, making it useful in various applications such as cart wheels and airport seats. It’s also used to […]
A communication pipe connects a property to a municipal water supply, with maintenance being the responsibility of the water and sewer company. Warning signs of a leak include soft soil and puddles. Utilities may temporarily shut off water to do maintenance work, and homeowners can request a utility map to avoid damaging buried lines. A […]
Rickettsiosis is a group of diseases caused by different bacterial infections, transmitted by fleas, ticks, mites, or lice. Symptoms range from mild to severe and treatment includes antibiotics and steroids. Prevention involves removing the organisms that transmit the infection. The term rickettsiosis, or rickettsiosis disease, is used to describe different types of diseases caused by […]
