The
earliest, and still the cheapest, barcode scanners are built from a
fixed light and a single photosensor that is manually "scrubbed" across
the barcode. Barcode scanners can be classified into three
categories based on their connection...
Monday, 21 November 2011
Pride Of Pakistan, Dr. Abdul Salam
Pride Of Pakistan, Dr. Abdul Salam (January 29, 1926– November 21, 1996)
Dr Salam won the Nobel Prize in Physics 1979 for his research in “Grand unification theory”. This theory was inspired by his spiritual beliefs that all forces emanate from...
How to find Gas Leakage in gas Pipeline?
How to find Gas Leakage in gas Pipeline????Turkey Vultures were (and sometimes still are) used by natural gas companies to pinpoint pipeline leaks. Natural gas is by itself odorless, so gas companies add the chemical ethyl mercaptan to it so that people...
The Married couple of Jan Davis and Mark Lee
The Married couple of Jan Davis and Mark Lee was the only married couple who flew aboard the Endeavor space shuttle from Sept 12-20, 19...
