Time Machine

Crystallinity Crystallinity  is a  physical property  of a  solid  that acts like a  crystal . The degree of crystallinity of a crystal has a big influence on  hardness ,  density ,  transparency  and  diffusion . Crystallinity can be measured using  x-ray diffraction , but  calorimetric  techniques are also commonly used. Examples would include: sodium chloride (table salt) aspakdonad Fiverr Seller Hi Friends Iam Mohamed Aspak And Iam studying in B.E Computer Science&Engineering Student 2nd Year And I need to work online In part time. I know Full editing of Photos and videos. i will Do my Extreme Best For Your Orders.I Can do Your Project within 2 or 4 hours And having youtube channel... :-)

Coefficient of thermal expansion The  coefficient of thermal expansion  is used: in linear  thermal expansion in area thermal expansion in  volumetric  thermal expansion These characteristics are closely related. The volumetric thermal expansion coefficient can be measured for all substances of condensed matter ( liquids  and solid state). The linear thermal expansion can only be measured in the solid state and is common in engineering applications. Thermal expansion coefficients for some common materials The expansion and contraction of material must be considered when designing large structures, when using  tape  or  chain  to measure distances for  land surveys , when designing  molds  for casting hot material, and in other engineering applications when large changes in dimension due to temperature are expected. The range for α is from 10 -7  for hard solids to 10 -3  for organic liquids. α varies with the temperature and some materials have a very high variation

Angular velocity In  physics , the  angular velocity  specifies the  angular speed  at which an object is  rotating  along with the direction in which it is rotating. It is a  vector  quantity. [1]  The  SI  unit of angular velocity is  radians per second . But it may be measured in other units as well (such as  degrees  per second, degrees per hour, etc.). When it is measured in cycles or rotations per unit time (e.g.  revolutions per minute ), it is often called the rotational velocity and its  magnitude  the  rotational speed . Angular velocity is usually represented by the symbol  omega ( Ω  or  ω ). The direction of the angular velocity vector is perpendicular to the  plane  of rotation, in a direction which is usually specified by the  right hand rule . Angular velocity describes the speed of  rotation  and the orientation of the axis about which the rotation takes place. The direction of the angular velocity vector will be along the axis of rotation; in this case (

Angular frequency In  physics ,  angular frequency.  ω. (also called the  angular speed ,  radial frequency , and  radian frequency)  is a measure of rotation rate. A high rate of angular frequency means something is turning very fast. The angular frequency is the  magnitude  of the vector quantity  angular velocity  which is also known as the  angular frequency vector   {\displaystyle {\vec {\omega }}} . Angular frequency is a measure of how fast an object is rotating It is useful in many areas of maths and science as it allows understanding of many properties of physical objects in our world. In  SI  units, angular frequency is measured in  radians  per  second , with dimensions t −1  since radians are dimensionless. Theory Angular freqency is often given in radians per second ( {\displaystyle t^{-1}} ) as it is easier to work with. In this way, the angular frequency is given by, {\displaystyle \omega ={\frac {2\pi }{T}}=2\pi f} where  {\disp

Momentum Momentum can be considered the "power" when an object is moving, meaning how much force it can have on another object. For example, a bowling ball (large mass) pushed very slowly (low velocity) can hit a glass door and not break it, while a baseball (small mass) can be thrown fast (high velocity) and break the same window. The baseball has a larger momentum than the bowling ball. Because momentum is the product of the mass and the velocity of an object, that both mass and velocity affect the momentum of an object. As shown, an object with a large mass and low velocity can have the same momentum as an object with a small mass and large velocity. A bullet is another example where the momentum is very-very high, due to the extraordinary velocity. Another beautiful example where very low-velocities cause greater momentum is the push of Indian subcontinent towards the rest of Asia, causing serious damages, such as earth quakes in the portions of himalayas. In this ex

Speed is distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity that is the magnitude of the  velocity  vector. It doesn't have a direction. A higher speed means an object is moving faster. A lower speed means it is moving slower. If it isn't moving at all, it has zero speed. The most common way to calculate the constant velocity of an object moving in a straight line is the formula: r   =   d   /   t where r  is the rate, or speed (sometimes denoted as  v , for velocity, as in this  kinematics article ) d  is the distance moved t  is the time it takes to complete the movement This equation gives the average speed of an object over an interval of time. The object may have been going faster or slower at different points during the time interval, but we see here its average speed. The instantaneous speed is the limit of the average speed as the time interval approaches zero. When you look at a speedometer in a car,