സർവ്വസമവാക്യങ്ങൾ. 🔹(a+b)² = a²+2ab+b² 🔹(a-b)² = a²-2ab+b² 🔹a²-b² = (a+b)(a-b) 🔹a³+b³ = (a+b)(a²-ab+b²) 🔹a³-b³ = (a-b)(a²+ab+b²) 🔹a³+b³ ─────── = a+b a²-ab+b² 🔹a³-b³ ────── = a-b a²+ab+b² 🔹(a+b)³ = a³+3a²b+3ab²+b³ 🔹(a-b)³ = a³-3a²b+3ab²-b³ 🔹(a+b)²+(a-b)² = 2(a²+b²) 🔹(a+b)² – (a-b)² = 4ab Continue reading

Raman spectroscopy


Introduction to Raman spectroscopy Raman spectroscopy was named in the honor of its inventor, C.V. Raman. Raman spectroscopy (RS) is a versatile method for analysis of a wide range of samples. It resolves most of limitations of other spectroscopic techniques. Continue reading

Lithographic technology

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Lithographic technology is a printing method that uses electrochemical process to create an image.Lithographic is a greek word means lithos, meaning “stone”, and graphein, meaning “to write”. It was invented in 1796 by German author and actor ” Aleos Senefelder Continue reading

Overhead power transmission

Overhead power transmission

All of us have a sound knowledge regarding overhead transmission system.Simply we can tell “Its a structure used for energy transmission and distribution along a large distance.”This system mainly consists of poles or towers and conductors.This poles or tower will Continue reading

Roaming and Handoff


Roaming and Handoff are technical words in telecommunication world.Now a days these are very popular these words both in communication field and normal life.So knowlede with this simple technical word is very important. * What is the roaming ? When Continue reading

Supermoon or Bloodmoon


The ‘supermoon’ is an extra big full moon, The first time in more than 30 years.In this year we can see the supermoon or Bloodmoonon Jan. 31, 2018. Whats the Supermoon or Bloodmoon ? A supermoon is a full moon.In Continue reading