From walking to flying
Long ago early man kept moving from place to place in search of food.They had to walk long distances and carry heavy loads.they used animals like bullocks,horses and donkey to carry their load.One day,someone noticed logs of wood floating in the river. An idea struk!They tied a number of straight logs together and made a raft. This helped them to travel and also carry heavy loads by river.
Travellining
Travellining and transporting heavy goods by land was still not possible. At first carts without wheels were made.It was called a Sledge. The people pushed and pulled the sledge.they also used animals to pull the sledge. But the sledge could move only on smooth ground.
Cart
Some time later,People saw that round objects rolled easily.So they fitted small,round,pieces of tree trunk below the cart.The cart could now move easily on uneven ground.The wheel was invented.land travel became easier and faster.
Wheel
Soon many more means of land transport were developed where the wheel was used like asbicycles,jeep,bus es,Ri-ckshaws, tongas,scooters
Train
Now the wheel came to be used in engines and coaches of trains
Aircrafts
The invention of the wheel was one of the greatest inventions of mankind. Now we can see the wheels used in AIRCRAFTS,too.
Presented by
Sh. Jaskaran singh (Math Master) Mr. Naresh Kumar (Math Master)
GGSSS, Bhogpur