検索キーワード： ナレーター "Basil Sands" 科学・工学

Temperature contributed to our evolution - our upright walking, our loss of fur, and our big brains - and now continues to affect our lives in unexpected ways, and the link from a warm mug to our emotions is anything but straightforward. Studies have shown, for example, that a chilly deliberation room can predispose a jury to convict and that a cold day can make us more likely to buy a house. Our mind-body connection works the other way, too: Thinking about friendly or caring people can make us feel warmer.

Once we step on the treadmill of progress, it's hard to step off. Yet Edward Tenner shows that human ingenuity can be applied in self-preservation as well, and he sheds light on the ways in which the users of commonplace technology surprise designers and engineers, as when early typists developed the touch method still employed on today's keyboards. And he offers concrete advice for reaping benefits from the devices that we no longer seem able to live without. Although dependent on these objects, we can also use them to liberate ourselves.

In a tradition that runs from John Muir to Bear Grylls, Searles finds a fellowship with nature and a deeper meaning in the world of bears. Do bears understand things we don't? Are they dialed in to some greater natural force? Unlike us, bears waste little time on unreasonable fears. Bears are fully in the moment. They have an inner peace that seems to offset their power and strength. That may explain why no other animal on the planet is as revered as the bear.