(Not in order)
1. Astrophysics/Astronomy - Form the basis for my book 'A History of the Future'. I have owned a reflecting telescope since 1985. Only regret is that I haven't had time to use it lately. Special Interest: Future Evolution of the Universe.
2. Alexander the Great - Arguably the greatest military general of all-time. A relatively tolerant conqueror he helped spread Greek rationality eastward.
3. Amadeus - Middle Name of Wolfgang Mozart - one of music's true geniuses.
4. Aleinu - My favourite Hebrew prayer.
5. Aircraft - especially those of the World War II era.
6. Astral Travel - The idea fascinates me despite the doubt about its reality.
7. Algebra - What can I say its relaxes me. Bizarre isn't it...
8. Ancient History - A personal study and a course that I was very fortunate to design and teach for three years.
9. Australia - One of the few countries with a backbone in the war against terror.
10. Asthma Spray - A device that has kept me alive all these years.