Tuesday, 31 December 2013

Alfred Nobel



Alfred Nobel
19th Century inventor of “Nobel’s safety Powder’


Introduction:                 
Noble found that when in an absorbent  inert substance like keiselguhr  also known as Diamaceous earth, Niroglycerin was incorporated, it became safer and more convenient to handle and this mixture he patented in 1867 as ‘Dynamite”.
Family and Education:
Alfred Nobel was born on 21st October 1833 at Stockholm. His father’s name is Immanuel Nobel and mother Andriette Ahlsell Nobel.  His father was a engineer and inventor and moved the family to Finland and Russia during Alfred’s youth. Though noble lagged in formal secondary and tertiary level education. He gained proficiency in six languages namely Swedish, French, Russian, English, German, Italian. He worked for a varieties of laboratories and chemical engineering facilities. Noble became particularly very interested in creating practical uses for Nitroglycerine. Noble found that when in an absorbent inert substance like Kieselguhr wlso known as Diamaceous earth, Nitroglycerin was incorporated it became safer and more convenient to handle and this mixture he patented in 1867 as ‘Dynamite’.

Professional Journey:
Alfred Noble, In Redhill, Surrey at England, demonstrated his explosive for the first time at a Quary. He named the highly powerful substance “Noble’s safety powder to improve the image of his business and establish his name. Nobel later on combined Nitroglycerin with various nitrocellulose compounds, similar to collodion, but settled on a more efficient recipe combining another nitrate explosive, and obtained a transparent, jelly-like substance, which was a more powerful explosive than dynamite “Gelignite” or blasting gelatin, as it was named, was patented in 1876; and was followed by a host of similar combinations, modified by the addition of potassium nitrate and various other substances. Gelignite was more stable, transportable and conveniently formed to fit into bored holes like those used in drilling and mining, than the previously used compounds and was adopted as the standard technology for the mining in the Age of Engineering bringing Nobel a great amount of financial success, though at a significant cost to his health. An off-shoot of this research resulted in Nobel’s invention of ballisite, the precursor of many modern smokeless powder explosives and still used as  rocket propellant.

Renowned work of AlfredNobel:
Alfred bagan experimenting with Nitroglycerine creating his first explosions in early summer in 1862. In only a year, Alfred received a Swedish patent for his persussion detonator- the “Nobel lighter”. In 1867, Alfred invented a new and safer – to – handle explosive Dynamite. In 1888, when Alfred’s brother died, a French news paper mistakenly ran an obituary for Alfred which called him the “Merchant of death”. Not wanting to go down in history with such a horrible Eaipath, Noble created a mill that soon shocked his relative and established the now famous Nobel Prizes. On 27th November, 1895 at the Swedish- Norwegian club in paris, Nobel signed his last will and testament and set aside the bulk of his estate to establish the Nobel prizes to be awarded annually without discrimination of nationality. Many of the companies founded by Nobel have developed into industrial enterprises that still play a prominent role in the world economy. For example,  Imperial Chemical Industries (ICI), Great Britain societe centraule de Dynamite, France and  Dyno Industries in Norway.  Towards the end of his life, he acquired the company AB Bofors in Karlskoga, where Bjorkborn Manor became his Swedish home.

                                                                                   

                                                                                                                       

Wednesday, 25 December 2013

HOW TO MAXIMISE SCORE IN ANY COMPETITIVE EXAM

How to maximise your score in exam

Basically you are a student than you have many questions in your mind to improve your score in exam so don’t take stress & makeup your mind to make Strategy to get a good marks in exam .Don’t waste your time in worrying and too much thinking.


Revise main point, your notes & brief summary. During exam time set your time according to your exam. Attempt all question. Short question must be attempted because these questions increase your score. Improve your calculation speed because calculator doesn’t be allowed in exam.


Be confident – Relax your mind when you start preparation for exam with cool mind. Make patience.


Be regular – If you started your study don’t be disturb, don’t be late & be regular.


Time management - Maintain a time according your exam. Prefer to study in morning time. Time set in your mind you does this work in time period.

Accuracy – You need to be more accurate and faster when you attempt your Question with accuracy.


Attempt all questions – Attempt all question. Short question must be attempt because these questions increase your score in exam. In exam completed all question in time. After reading the paper set the time for every question.

Get Familiar – Read all paper is carefully. Read every question three times. After reading the paper your half paper solves at a time and you did your question easily and quickly.


Check paper – After solve every question you check your paper and try to find out any mistake.


If you concentrate and in proper way to follow all these point and start your study with hard work you are definitely successful in your exam and get a high score in exam.

How to prepare for Group Discussion 

Monday, 16 September 2013