A pilot hole is a small hole used as a guide for drilling, screwing or nailing. It is used to avoid slippage, cracking or splitting of the surface and to improve accuracy. It is also used as a guide in flatpack furniture. A pilot hole is a small hole created in a surface to serve […]
A glory hole is a large excavation area created during mining or construction projects. It can be used to create an ore shaft or open pit mine, and can also occur as a result of the block caving method. The term can also refer to excavations for building basements. A “glory hole” is a term […]
Post hole diggers are tools used for digging small to moderate sized holes for landscaping and agricultural purposes. They are manually or hydraulically operated, with hand-operated diggers being designed for household use and hydraulic excavators for larger applications. Costs vary depending on size and functionality, and they can be rented from home improvement stores. A […]
You can’t dig a hole through the center of the Earth from most places in the US and end up in China; instead, you’d end up in the ocean. Exceptions include Carville and La Junta in Colorado and part of Shelby, Montana. Hawaii and Alaska also have opposite points on land. Antipodes are rare due […]
A hole saw is a circular saw used with a drill to make large holes in thin materials. It has sharp teeth that determine the size of the hole, and an adjustable hole saw can make holes of different sizes. It is important to use the correct size and securely attach the saw to the […]
Blind holes are holes that do not fully penetrate a material and are used to hide fasteners and create a smooth surface. They are commonly used in woodworking and medical equipment to eliminate safety risks. Blind holes can vary in depth and width and may require special measures for reinforcement. Disassembling items made with blind […]
Priest’s holes were secret compartments built to hide Catholic priests and their valuables during Elizabethan rule. They were small and had no ventilation or toilet facilities, and were hidden cleverly to avoid detection. Nicholas Owen was a skilled builder of priest holes. A priest’s hole is a secret compartment designed to house one or more […]
Black holes are areas of space with intense gravitational pull that nothing, not even light, can escape. Their existence is debated, but most scientists believe they form after stars die. They are difficult to identify and are usually detected by measuring force fields and energy output. Gravitational forces cause the region to remain dark indefinitely. […]
The Kola Superdeep Borehole in Russia is the deepest hole ever drilled, reaching 7.6 miles deep in 1981. It only penetrated a third of the Baltic continental crust and discovered 2.7 billion-year-old rock. Rumors of reaching hell were false, but interesting discoveries were made, including pockets of water and excess hydrogen. The deepest hole ever […]
Toad in a hole is a British dish made by cooking sausages in a Yorkshire pudding batter. It is a popular pub food and comfort dish, often served with onion gravy. It should be eaten immediately and not cooked in a convection oven. Toad in a hole, or toad in a hole, combines two British […]
A bottom hole assembly is a set of components located at the bottom of a drill pipe used for drilling operations. It includes a drill bit, collars, and other items such as mud movers. The assembly provides weight for the bit and allows for directional control. Other components such as stabilizers and mud motors can […]
The largest explosion in the known universe since the Big Bang has been recorded by modern radio telescopes. The explosion was caused by emissions from a supermassive black hole at the center of a supercluster of galaxies known as Ophiuchus. It put out five times more energy than the previous record holder and was initially […]
Macular holes, tears or small holes in the macula of the eye, can cause distorted and blurry central vision and may require surgery called a vitrectomy. The surgery involves removing the vitreous gel and replacing it with a combination of gas and air to keep the edges of the macular hole in place as it […]
Electric hole punches use sharp metal cylinders connected to an electric motor to punch holes in paper for binding. They can handle multiple sheets and come in different configurations, including heavy-duty models that can bind pages. They typically cut up to eight holes and can be modified for different patterns and paper sizes. An electric […]
The Calcutta Black Hole was a dungeon where British POWs allegedly died in 1756. John Holwell’s account of the incident is disputed, with little objective support. The prisoners were confined to a small room with no water, and only 23 survived. Historians doubt the number of prisoners and question whether they could physically fit in […]
“Ace in the hole” can refer to a literal advantage in poker, where a player has an ace as their hole card, or a figurative advantage in any situation where someone has a secret edge over others. The phrase originated in poker and has expanded to other contexts. The phrase “ace in the hole” can […]
A plot hole is an illogical element in a story that can be caused by a lack of character action or sudden appearance of an unestablished element. It can be caused by a writer wanting a scene to work a certain way without logical reasoning. Common types include characters having knowledge they shouldn’t or lacking […]
“Fire in the hole” originated as a warning for miners before detonating explosives. It is now used in any situation where an explosion is imminent and has spread to military, civilian, and entertainment contexts. It is still used in modern mining to warn other miners of impending explosions. “Fire in the hole” is one of […]
