Resultados para "The Brave" en Historia y filosofía

In the 1990s, researchers in the Arctic noticed that floating summer sea ice had begun receding. This was accompanied by shifts in ocean circulation and unexpected changes in weather patterns throughout the world. The Arctic's perennially frozen ground, known as permafrost, was warming, and treeless tundra was being overtaken by shrubs. What was going on? Brave New Arctic is Mark Serreze's riveting firsthand account of how scientists from around the globe came together to find answers.

What is embryonic stem cell research? Why is it so controversial? What is its relationship to human cloning? Events are moving so fast and biotechnology seems so complicated that many of us don't have an informed opinion about issues that are remaking the human future before our very eyes.

Few diseases are more gruesome than typhus. Transmitted by body lice, it afflicts the dispossessed - refugees, soldiers, and ghettoized peoples - causing hallucinations, terrible headaches, boiling fever, and often death. The disease plagued the German army on the Eastern Front and left the Reich desperate for a vaccine. For this they turned to the brilliant and eccentric Polish zoologist Rudolf Weigl.