Click on image to update the captcha.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please type your username.
Please type your E-Mail.
Please choose an appropriate title for the question so it can be answered easier.
Select a Category
History & Politics
Home & Garden
Jobs & Education
Please choose the appropriate section so question can be searched easier.
Please choose suitable Keywords Ex: question, poll.
This question is a poll? If you want to be doing a poll click here.
Do you need a video to description the problem better?
Choose from here the video type.
Put here the video id : https://www.youtube.com/watch?v=sdUUx5FdySs Ex: 'sdUUx5FdySs'.
Get notification by email when someone answers this question.
By posting your question, you agree to the terms of service.
The first demonstration of color television happened in 1928 when John Logie Baird showed off his Televisor system modified for color. Although the Televisor was electro-mechanical, the principles used remain in place today. It was purely experimental at that stage. The US were the first to enjoy coRead more
A QR Code is a matrix barcode (or two-dimensional code), readable by QR scanners, mobile phones with a camera, and smartphones.
Can you please be more specific for which phone you are asking?
Ghaziabad and Allahabad have emerged as the two most air polluted cities in Uttar Pradesh,India in a recent survey by a research and advocacy organisation.
Enter the destination URL
Or link to existing content