Electronics :Traffic light Circuit

This is a two way continuous traffic light circuit which uses  LED, diodes and IC's .  Usually most traffic light in the world is PLC controlled but this circuit is  simple  and easy to build .   In the image below is the schematic diagram of the project ....

Plane Geometry Review : Triangle Area calculation

Area Formulas 1.  Given base and altitude Triangle: Given base and height Area = 1/2 (b)(h) 2. Given two sides and an Angle  Triangle:  Given 2 sides and angle Area = 1/2 (a) (b)sin θ 3. Given 3 sides Triangle Given 3 sides a,b,c Area = sqrt (s(s-a)(s-b)(s-c))----->...

Engineering Mathematics : Plane Geometry Part 1

Fundamental Principles Angles Acute angle = less 90 deg Obtuse angle = more than 90 and less than 180 deg Straight angle =180 deg Vertex of the angle is point where two lines meet Supplementary angles have a sum of 180 deg Complementary angles have a sum of 90 deg The base angles of an isosceles (two...

Algebra: What are the examples of Empirical formula

Some Formulas are derived by means of experimentation. Among these are the formulas discovered by pascal, Galileo and Archimedes. They are called empirical formulas. Examples of Empirical formulas: 1.1 a formula for changing temperature from Fahrenheit to centigrade. 2....

Algebra: What is the Lowest common Multiple in Algebraic Expression

The lowest common multiple ( L.C.M) of two or more arithmetical or algebraic expressions is the expression having the least number of factors which  will exactly contain each of the iven expressions.Thus the numbers 4, 6 and 12 will have 12 for their LCM for it exactly contains each of the numbers....