Found 575 Articles for Physics

British standard system is the system which is based on ISO systems. In this standard system, there is a total of twenty grades of tolerance. The eight grades cover sizes up to 550 mm and the twelve cover set grades up to 3120 mm. The tolerances in these systems for which each grade varies over the range of sizes which have to be produced as soon as possible and the same standard for relative accuracy in each size.Take an example when the tolerance in grades which ranges from 0.014 mm of sizes below 5 mm to 0.350 mm for sizes ... Read More

The guidelines for designing a gauge should be carefully done. The form of go gauges should exactly combine with each other so that the mating parts can fit into each other properly. These gauges, especially the go gauges should enable simultaneous checking of several dimensions and must be used for the maximum amount of time. Then the no gauges should be able to check the number of dimensions at any time. It must be taken care of and given the maximum amount of possibility.Material for GuagesThe materials to be considered for gauges should have good properties. The material used for ... Read More

Mach number is the ratio of the velocity of the object with respect to the velocity of sound. Mach number is represented by "M". The formula for M is v/c, where v is the velocity of the object and c is the speed of sound which is approximately 330 m/s. The speed of sound varies due to a number of factors like temperature, altitude etc. thus depending on the surrounding conditions we estimate the value of "c".Mach 1 implies that the body is travelling at a speed equal to the speed of sound. If Mach number < 1 it implies ... Read More

The light-based key distribution system for quantum encryption is a secure communication method. It enables two parties to produce a shared random secret key which is known only to them and it can be used for encryption and decryption of the message by both the parties. Two communicating users can detect the presence of any third party trying to gain knowledge of the key and this is because of the unique property of QKD (Quantum Key Distribution) system as it involves components of quantum mechanics.Where Is It Used?Quantum key distribution is used not to transmit any message data it is ... Read More

Absolutely, there is no other device than a Vernier Caliper which provides exact measures, especially for linear dimensions. If you want to measure the diameter of a round object like a ball or a cylinder, bring Vernier Caliper into use to get the best results. What makes it so effective and widely popular? Because the measuring jaws can be secured on either side of the circumference, thus provide exact measures.How Does a Vernier Caliper Work?Vernier Calipers give a direct reading of the distance measured with high accuracy and precision. Being functionally alike, they come with the ability to read the ... Read More