He used to come out of the cave in search for food or fruits or flesh of any smaller animals or just to quench his thirst. Then some of the times, he used to disappear and the whole group used to mourn in unison as a great son had died. Hey, we are talking about the ancient times and in those times, human life used to consist of these events only like hunting, preparing food, gossiping for a while and also searching for another suitable place once the resources around the current place is nearing exhaustion etc.
Right from the time of getting up from the slumber to the time once sun sets in-their lives used to revolve around this time as after darkness settles unless anything urgent occurs, they did not use to step a foot outside the caves as they initially lost some of their group members. Hence, even today, any lullaby in any language of the world is being sung to any child so that he can sleep like a log and does not require getting out of the bed at any time during nights.
Later on, when they started to build indigenous sharp tools to hunt the bigger and ferocious animals, slowly they gained confidence which makes them to believe that they are in the correct path towards achieving supreme control over the animal kingdom. So, it is the thought process, situation and intelligence which brought about the change in character from certain human beings whose name does not feature in any of the ancient history books or ancient writings as well. Also, many of the noted historians opine that the most significant discoveries ever made in the history of human civilisation is the invention of wheel as attaching that to any plane one can go to distant places as it can slide.
Moreover, it can also be used in pottery for making certain earthen pot or other clay articles. So, we can see that this invention has brought about rapid changes which would have taken a long time to actually occur had it not have happened. So, science and technology indeed played a hugely responsible and significant role in the advancement of human civilisation right from its forest days to the modern city lives where we cannot live without television or cars or at a basic level, electricity. So, indeed we have come a long way right from the days of darkness at the caves.
Basically, the fire fighting pump set is mainly being used to douse any fire in the house, neighbourhood or municipal buildings. It mainly consists of discharge hose, suction hose, suction strainer, dispensing nozzle and pump trolley apart from having 300l/ min capacity.
Out of all of the different types of Dosing systems, various specific ones are being mainly used to transfer several acids, chemicals from tanks, containers, drums and pipes. Mainly, they are being used for chemical, civil and plumbing sectors. One of the examples are the renowned pH control system which maintains the acids to alkaline ratio of the water be it used for drinking or other purpose.