Pole vaulting is a track and field event where a flexible pole is used to jump over a horizontal crossbar without knocking it down. The vaulter sprints and lands on a cushioned area. Jumps are made at progressive heights, and the last height climbed is the winning height. The pole is released at the height […]
A range post, also known as a trim post, is a post with alternating stripes of different colors used for site measurements. Surveyors use it to calculate angles, elevations, and distances. It can be made of wood, metal, fiberglass, or composite material and may be equipped with GPS hardware. The post is typically 8 feet […]
The Earth’s magnetic field reverses polarity every 250,000 years, with the last shift occurring 790,000 years ago. The magnetic field protects the planet from solar radiation and plays a vital role in climate, weather patterns, and animal migration. Evidence for these changes comes from the seabed along the Mid-Atlantic Ridge. Some scientists believe a pole […]
The North Pole is a geographic pole at 90° North, while the North Magnetic Pole is based on the magnetosphere and constantly changing. The magnetic field creates the aurora and the pole’s location is moving towards Siberia. Magnetic compasses point to the magnetic North Pole, but GPS is a better tool for navigation. The difference […]
A winch pole is a bar that is attached to the front of a boat trailer and used to mount a winch system. It raises the winch higher and keeps it off the trailer frame. Different sizes of trailers and boats require different sizes of winch poles, and accessories like spare tires can also be […]
Pike poles were originally used by river drivers to clear log jams, but are now primarily used by firefighters to bring down drywall and detect fires. Modern models are made of lightweight fiberglass and can also be used for ventilation and removing fuel sources. A pike pole is a tool used by firefighters to bring […]
Pole aerobics involves climbing and dancing around an exercise pole, which is a good method for toning muscles and burning calories. It can be done in groups or individually, and is considered a fun and intense workout. It was once exclusive to exotic dancers, but is now a popular form of exercise for men and […]
Robert Edwin Peary, a US Marine engineer, was the first person to reach the North Pole in 1909 with his clerk and four Inuit men. The North Pole is isolated and covered in sea ice, making it impossible to build permanent structures. The first expedition was controversial, but a 2005 expedition recreated the journey. The […]
Pole fitness is a popular exercise that uses a stationary pole to tone and develop flexibility in muscles. It is not to be confused with pole dancing and can be just as exhilarating as traditional workouts. Classes follow a strict format and include beginner, intermediate, and advanced moves. Moisturizers and jewelry are not allowed during […]
Cartographers and explorers have long suspected the existence of a southern continent, Terra Australis. In 1820, the Antarctic mainland was sighted for the first time, and in 1821, John Davis became the first person to set foot on Antarctica. The competition to reach the South Pole intensified, with Roald Amundsen’s team becoming the first to […]
Pole beans are easy to grow and harvest, with a variety of cultivars available. Native to South America, they were part of the “three sisters” with corn and squash. Plant in warm soil and stake the vines. Green beans mature in 10 days, and dry beans can be left on the vine. Avoid handling when […]
A post lathe is a manual wood lathe powered by a foot pedal and a springy post. The workpiece is secured with cord and rough cuts are made before turning. Cuts can only be made while the foot pedal is depressed. The process is slower and more physically demanding than a power lathe, but skilled […]
Rod hooks secure heavy support cables or rods to ceilings or roofs in buildings, allowing for quick and secure installation of mechanical and electrical equipment. Builders must choose the correct hook for the job based on weight rating, rod size, and material. Different shapes and sizes are available to suit building designs, including L-shaped and […]
A shaded pole motor is a simple single-phase AC induction motor that relies on electromagnetic forces to generate torque. It consists of a rotor assembly and a stator pole with shaded and unshaded windings. It is sturdier and less expensive than many comparable models, but has a weak power output and low starting torque, making […]
Roald Amundsen led the first expedition to reach the South Pole in December 1911, beating British explorer Robin Falcon Scott by a month. Amundsen had previously explored Antarctica and attempted to reach the North Pole. His team established supply depots on the way to the Pole and slaughtered dogs for food. They reached the Pole […]
