/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: 0839928245 https://cdn.slidesharecdn.com/profile-photo-0839928245-48x48.jpg?cb=1523441140 i m persley studying BeD FET in physical science and life science..my desire is to inspire the youth to consider physics as nowadays south Africa its ruining short of scientists..