Projection welding uses surface protrusions on one or both sheets to concentrate welding energy, allowing for closer weld gaps on thicker materials. It is commonly used in the automotive industry for connecting studs and nuts to sheet metal assemblies. The process is suitable for low carbon steel, stainless steel, and aluminum, with plate thicknesses up […]
The Peters projection map aims to minimize distortion of the Earth’s bodies. It was not invented by Arno Peters, but popularized by him. The map is useful for political purposes, but the Mercator projection is better for navigation. The controversy surrounding the Peters projection map began in 1974 due to issues of prejudice, colonialism, and […]
Election projections use polls to predict results, using statistical methods to adjust for demographics and voting history. Exit polls and partial results can improve projections. Election observers use projections to monitor free and fair elections and compare with actual results. An election projection uses poll statistics to predict election results. There are several statistical methods […]
An OpenGL projection is the process of translating 3D objects into a 2D image for display on a screen. There are two types of projection modes: orthographic and perspective. The challenge is to adjust the data to be consistent with the projection mode, display volume, and virtual camera settings. The most commonly used mode is […]
Astral projection, or out-of-body experiences (OBEs), involve a person’s consciousness leaving their physical body to observe the world from an independent point of view. Mainstream science dismisses it as impossible, but around 14% of the population have reported experiencing it, sometimes during times of crisis. It can also occur during meditation, rest, or sleep. The […]
Psychological projection is when someone attributes their undesirable thoughts, feelings, and ideas to someone else. It can be a defense mechanism, but also destructive. It was developed by Dr. Sigmund Freud and can affect decision making and interpersonal relationships. Being aware of projection can be important in understanding others. Psychological projection is a form of […]
