muḥyī al-dīn maghribī is among the few astronomers of the middle ages whose astronomical system is entirely based on new measures of planetary parameters and whose measurement of the observational data and calculation processes for determining their amount have been carried out in maragha observatory. he has explained the details of his observations and calculations in a volume called talkhīṣ a...

simulation of gamma and hadron showers in the energy range 100gev- 25tev has been carried out. for a big ideal cherenkov light array, characteristics of lateral distribution of cherenkov photon density have been studied. results from this ideal detector are compared with those simulated for a real tunka- like array to investigate experimental potential of using existence of a hump in lateral di...

Abstract The Promoting Radio Astronomy in Ghana through School visits and Clubs (PRAGSAC) project was an intervention to promote astronomy education schools Ghana. It initiated by a group of enthusiastic students who were trained radio astrophysics under Royal Society/Newton Fund UK termed Development Africa with Astronomy. team’s aim is expose school children increase their interest the scienc...