One type of circular parts used in wheel or cycle v
ehicles. It can rotate along the axis located in the center of the wheel. Moving on the wheels, the vehicle changes the position.
The invention of wheels in human history is considered as a breakthrough.
Congratulations @hasib2! You have completed some achievement on Steemit and have been rewarded with new badge(s) :
Click on any badge to view your own Board of Honor on SteemitBoard.
For more information about SteemitBoard, click here
If you no longer want to receive notifications, reply to this comment with the word
STOPDownvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit