When an object comes down under gravity in the air, it is subjected at least two forces, the weight - W  -  and the drag / air resistance ...

  Parallax is an optical phenomenon when the apparent position of an an object changes with the position of the observer. In order to experi...

The process of finding the gradient or slope of a function is the differentiation. We used to find the gradient of a straight line, just by ...

  The Galilean Telescope was invented by the legendary Italian physicist, Galileo Galilei in 1609. It is a simple telescope consisting of a ...

The above jigsaw puzzle is of a famous physicist who was born in the month of February. He was instrumental in turning the astronomy upside ...

  The tranformations of graphs are aimed at: GCSE IGCSE GCE -OL GCE - AL AS A Level High School T he above animation shows the strtching of...

  Root-Mean-Square Voltage in the UK The root-mean-square value of a function, f(t), is calculated as follows: Integrate the square of the f...

  The above animation shows the reflection of graphs. It is as follows: f(x) → f(-x) is a reflection in the y-axis f(x) → -f(x) is a reflec...

  Cassegrain reflector consists of a concave mirror, convex mirror and an eyepiece. Parallel light from celestial objects enters the telesc...

f(x) → f(x + a) - a translation in the negative x-axis by a f(x) → f(x - a) - a translation in the positive x-axis by a   f(x) → f(x) +...

  In the above animation, five points on the wave are considered for the explanation.  The fully interactive applet is given below for you ...

  The above animation is a terrestrial telescope, a refracting telescope. It has evolved from another refracting telescope, the astronomica...