The Heliopolis palace is one of the Egyptian presidential palaces and residences for the executive office of president of Egypt.it is currently widely known as
Sigmund Freud (1856-1939), was the physician, neurologist, and founder of psychoanalysis.He is called father of modern psychology.To which country he Belonged?
In 1942 this scientist let the team that succeeded in building the word's first nuclear reactor .What was the last name of this pioneer of nuclear technology?
