Text 1 Risks in Scientific Research 2
Text 2 Glassmaking in Bronze-Age Egypt 10
Text 3 Are Humans Still Evolving? 22
Text 4 Times of Our Lives 44
Text 5 The Right Time and Place for Making Flowers 72
Text 6 Suppressing Cancer:The Importance of Being Senescent 82
Text 7 Close to the Edge:Neutralizing the HIV-1 Envelope 92
Text 8 Researchers Tie Deadly SARS Virus to Bats 104
Text 9 The Hunt for a New Drug:Five Views from the Inside 114
Text 10 The Renaissance of Natural Products as Drug Candidates 130
Text 11 Making Fuels from Biomass 142
Text 12 The Man Who Dared to Think Small 148
Text 13 Plenty of Room,Indeed 160
Text 14 Small Things and Big Changes in the Developing World 186
Text 15 Ultrafine Particles 198
Text 16 Nanotubes for Electronics 226
Text 17 Spintronics 248
Text 18 In Praise of Hard Questions 268
Question A WHAT IS THE UNIVERSE MADE OF? 282
Question B WHAT IS THE BIOLOGICAL BASIS OF CONSCIOUSNESS? 288
Question C TO WHAT EXTENT ARE GENETIC VARIATION AND PERSONAL HEALTH LINKED? 294
Question D WHAT CONTROLS ORGAN REGENERATION? 300
Question E WHAT GENETIC CHANGES MADE US UNIQUELY HUMAN? 306
Question F HOW DID COOPERATIVE BEHAVIOR EVOLVE? 312
Question G WHAT ARE THE LIMITS OF CONVENTIONAL COMPUTING? 318
Question H IS AN EFFECTIVE HIV VACCINE FEASIBLE? 322
Question I WHAT CAN REPLACE CHEAP OIL-AND WHEN? 328
Question J WILL MALTHUS CONTINUE TO BE WRONG? 334