In depth: February 2002
Features
Car lubricants: fact and friction
Better oils and lubricants could improve efficiency and reduce greenhouse gases
From the big bang to the eureka moment
Peter Rodgers reports from Stephen Hawking's 60th birthday celebrations
Opinion
Black holes and beyond
Belief in the existence of black holes is the ultimate act of faith for a physicist
Dangers of dramatizing science
Robert Marc Friedman warns that historical characters must be portrayed carefully