Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back again.
How does one change their twitter name, like the name behind the @symbol. 1 reply 1 retweet 2 likes. @symbol Retweeted. Mishhhâ @mishhmua 7 May 2014. when you something fast and you either delete that letter, press the return button or end up with the @symbol in stead of the space. 0 replies 1 retweet 1 like.
Twitter was created in March 2006 by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams and launched in July. The service rapidly gained worldwide popularity. In 2012, more than 100 million users posted 340 million tweets a day, and the service handled an average of 1.6 billion search queries per day.