Tag: importance of transport system

For quick and easy deliver of mails in towns and cities different channels have been introduced like Rajdhani channel, Metro channel and Green channel

Green channel exists in all major cities for delivering of local mails. A mail from a town posted to the same town is delivered the next day through the green channel. Green post boxes are installed for this purpose.

It stands for Automatic Repeat Request or Automatic Repeat Quary. It is a scheme proposed for satellite communications. It is an error control mechanism for data transmission. 

It was syncom 3. It was launched in 1964. This was launched in the orbit near the International Date Line had the addition of the wideband channel for television. It was used to telecast olympics in Tokyo in 1964.

The first week of every year, the Road Transport departments all over the country celebrate Road Safety Week. On this occasion, they give guidelines to people to follow traffic rules. The theme for road safety week 2017 was “Your safety, secures your family-Be cautious on Roads”.

The rock shelter site of Bhimbetka ranges from the Paleolithic period to the Historic period.

The relics of the hunting and food-gathering man are available in Bimbetka, Hunasagi and Kurnool in India. There are many other sites in which such remains have been found. Most of these sites have been discovered along the banks of rivers and lakes. 

This is so because we do not find evidence to the linguistic development or to the use of script. We do not find any written records for the study of history of this period. 

Period for which there are no written records are called Prehistory. Prehistory is the period that begins with the appearance of the human being, about five million years ago , and finishes with the invention of writing , about 6,000 years ago.It is a long period divided into three stages i.e Palaeolithic Age , Neolithic Age and the Metal Age.

Microliths were small , polished and sharp stone tools. They were marked for their fine edge. They were too small to be used by themselves and would have been set into wooden or bone handles to make composite tools. Microliths were formed from prismatic blades, using the sharp unmodified lateral edges as the cutting edge.