Ghaziabad is one of the famous district in UTTAR PRADESH state. We have marked the location of Vaishali Ghaziabad on Google map. Vaishali Ghaziabad pin code has total six digits. First digit is 2, second digit is 0, third digit is 1, fourth digit is 0, fifth digit is 1 and sixth digit is 2.
Refrigeration completely wiped out the ice-box industry. Who Invented The Refrigerator. The first inventor of the refrigerator was Oliver Evans in 1805, however William Cullen invented the process in 1748 and Jacob Perkins invented more practical improvements in 1834.
The first microwave oven was impractical for home use. It was as large as a refrigerator and weighed more than 750 pounds. Amana purchased Raytheon in 1965 and produced the first countertop microwave oven, like those used in kitchens today, in 1967.