Helium.com | View Jamyang Zeaba's articles http://www.helium.com/users/509996.xml View Jamyang Zeaba's articles en-us Copyright Helium.com Tue, 24 Nov 2009 10:03:40 GMT Tue, 24 Nov 2009 10:03:40 GMT HIV (Human Immunodeficiency Virus) is one of the types of 'retroviruses.' Retrovirus is the ability of the virus to replicate and change its form f... http://www.helium.com/items/1661423-how-hiv-affects-the-immune-system Tue, 24 Nov 2009 10:03:40 An anemometer is a device that is used for measuring the speed of the wind. Anemos in Greek means wind, and in around 1450 Leon Battista Alberti ga... http://www.helium.com/items/1655863-what-is-an-anemometer Sat, 21 Nov 2009 11:50:26