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Amwoga KhalwaleWhat Is Fresnel Diffraction (Near-field Diffraction)? Fresnel diffraction also referred to as near-field diffraction is a form of diffraction which occurs when a wave passes through an aperture and diffracts in the near field, causing any diffraction pattern observed to differ in size and shape depending on the distance between the sources of the obstruction … Read more
Capstan and Turret lathe were first developed in the United States of America in 1960 by Whitney and Pratt. They are used for repetitive production of duplicate parts in the minimum time possible. The main parts of a capstan and turret lathe include: Bed Headstock Cross slide and saddle The turret saddle and auxiliary slide … Read more
What Is Semaphore? Semaphore is a variable or abstract data type used to control access to a common resource by multiple processes in a concurrent system such as multitasking operating system. Semaphore concept was invented by Dutch computer scientist, Edsger Dijkstra in 1962. Semaphore is typically a variable used to solve critical section problems and … Read more
What Is Battery Ignition System? Battery Ignition system is used in automobiles to produce spark in the spark plug for the combustion of the fuel in the engine. This battery is rechargeable and drives energy for its recharging from an alternator. This alternator is connected from the crankshaft of the engine and converts its mechanical … Read more
What Is Lamina Flow? In fluid dynamics, laminar flow also referred to as streamline fluid flow, is a type of fluid flow in which the fluid travels smoothly or in regular paths. In laminar flow, the velocity, pressure and other flow properties at each point in the fluid remain constant. The motion of particles of … Read more
What Is BOOTP? BOOTP stands for Bootstrap Protocol. BOOTP was originally defined as specification RFC 951 and was configured to replace the Reverse Address Resolution Protocol (RARP), also referred to as RFC 903. BOOTP can be defined as a networking protocol used by a client for obtaining an IP address from a server. When … Read more
Scalar and vector quantities used to be a thorough subject of debate among physicists for many years. It took a lot of studies and papers for a clear difference between the two quantities to emerge. These days it is quite easy to make a distinction between a scalar and a vector quantity. Scalar Quantity … Read more
A clutch is a mechanical device which engages and disengages power transmission especially from driving shaft to driven shaft. The clutch connects the two shafts so that they may be locked together and spin at the same speed (engaged), locked together but spinning at different speeds (slipping) or unlocked and spinning at different speeds (disengaged). … Read more
Polymerization describes the formation of large molecules (Polymers) with repeating structure from small molecules (monomers). There are two types of polymerization reactions, additional and condensation. Additional Polymerization Additional polymerization is a polymerization in which the growth of polymer chains proceeds by addition reactions between molecules of any size. It involves the linking of monomers with … Read more
Client-Server Network A client server network is a specific type of online network comprised of a single central computer acting as a server that directs multiple other computers, which are referred to as the clients. By accessing the server, clients are then able to reach shared files and information saved on the serving computer. Examples … Read more