Crab or Arabic 'Salta'oon' (IMAGE) University of Sharjah Caption An ancient Arabic manuscript expounding the function of an astrolabe constructed in the shape of crab or Arabic 'Salta'oon'. Credit Science and Technology in Islam, vol. II (Astronomy), published by the Institute for the History of Arabic-Islamic Science at Frankfurt, Germany, in 2003. Usage Restrictions No restriction License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.