Informing America, One Click at a Time
Amwoga Khalwale What Is Static SQL? Static SQL are statements in an application that do not change at runtime (when source code is written) and therefore can be hard-coded into the application. Static SQL is referred to as static because the SQL statements in the program do not change each time the program is run. Static SQL … Read more
What Is Silicon Controlled Rectifier (SCR)? A silicon Controlled Rectifier is a 3 terminal and 4 layer semiconductor current controlling device. It is mainly used in the devices for the control of high power. Silicon Controlled Rectifier is also referred to as SCR diode, 4-layer diode, 4-layer device or Thyristor. It is made up of … Read more
Numerical Control (NC) Machine Numerical control, commonly referred to as NC, is a machine which is controlled by the set of instructions in the form of numbers, letters and symbols. In this case, the set of instruction is referred to as program. NC is essential to the operation of modern industrial robots. The two basic … Read more
Portland cement is the most common type of cement widely used around the world as a basic ingredient of concrete, mortar, stucco and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin and usually originates from limestone. Raw materials for the manufacture of … Read more
Paramagnetism Paramagnetism is a form of magnetism whereby some materials are weakly attracted by an externally applied magnetic field and form internal induced magnetic fields in the direction of the applied magnetic field. Materials or substances that display Paramagnetism are referred to as paramagnetic. Some compounds and most chemical elements are paramagnetic under certain circumstances. … Read more
In the motors or generators, both the parts like rotor and stator play a key role. The main disparity between them is that the stator is an inactive part of the motor whereas the rotor is the rotator part. What Is A Stator? The stator is the stationary component of electromagnetic circuits. In different configurations, … Read more
What Is Uninterruptible Power Supply (UPS)? An Uninterruptible Power Supply (UPS) is a component that allows an electronic device to keep running for at least a short time when the primary power source is lost. UPS devices also provide protection from power surges. A UPS contains a battery that ‘’kicks in’’ when the device senses … Read more
Wind occurs because of horizontal and vertical differences (gradients) in atmospheric pressure. Accordingly, the distribution of winds is closely related to that of pressure. Near the Earth’s surface, winds generally flow around regions of relatively low and high pressure –cyclones and anticyclones respectively. Cyclones A cyclone is a large scale air mass that rotates around … Read more
What Is Aldehyde? Aldehyde can be described as any group of organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom and a single bond with another atom or group of atoms (designated R in general chemical formulas and structure diagrams). The carbon … Read more
North America has a relatively huge landmass (approximately 24, 709, 000 square kilometers) about 16.5% of the earth’s land area and about 4.8% of its total surface. In this regard, Pacific Time (PT) zone is never enough to be the only time reference. As a result, PDT and PST were introduced. PDT and PST are … Read more