|
|
| 4A CAUGHT-SHORT HISTORY OF PLUMBING |
 |
A supply of pure water was essential for the first settled people who began to cultivate the land around them.
|
|
| 4The History of Toilets in Japan |
 |
The earliest known toilets in Japan date back about 1,300 years. Excavations have uncovered pits that were used as toilets.
|
|
| 4The Sewers of Paris: A Brief History |
 |
Paris's first sewer system was built in the 1200's: it consisted of open troughs that ran down the center of each cobblestone road. The first underground sewer was built in 1370 beneath the Rue Montmartre.
|
|
| 4Boilers |
 |
Babcock and Wilcox co-invented the water tube steam boiler, a safer and more efficient boiler.
|
|
| 4Fascinating facts about the invention of the Refrigerator by Oliver Evans in 1805 |
 |
The first significant step toward success in the quest for a practical refrigeration system was made by Ferdinand Carre in France who devised a system whereby a refrigerants volatile liquid such as ammonia was circulated by a compressor around the container to be kept cold.
|
|
| 4The History of the Refrigerator and Freezers |
 |
Before mechanical refrigeration systems were introduced, people cooled their food with ice and snow, either found locally or brought down from the mountains.
|
|
| 4The History of Air Conditioning |
 |
Mechanical air conditioning did not come into existence until refrigeration machines were invented at the end of the 19th century.
|
|
| 4The Father of Cool : The History of Air Conditioning |
 |
The recognized 'father of air conditioning' is Carrier, but the term 'air conditioning' actually originated with textile engineer, Stuart H. Cramer.
|
|
| 4Solar Water Heating Milestones |
 |
First commercially-available solar water heaters was produced in the 1890s in southern California.
|
|
| 4History of the Refrigerator |
 |
Snow and ice, cool streams, springs, caves and cellars were long ago used to refrigerate food. Meat and fish were preserved in warm weather by salting or smoking.
|
|
