
枪炮、病菌与钢铁 人类社会的命运
本书内容简介:为什么是欧亚大陆人征服,赶走或大批杀死印第安人、澳大利亚人和非洲人,而不是相反?为什么小麦和玉米,牛和猪以及现代世界的其他一些了不起的作物和牲畜出在这些特定地区,而不是其他地区?
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66期


A study by an Australian insurance company found that white cars have lower accident rates than darker colors like black, with白天事故率低12% and nighttime as low as 47%. This is due to the visual effect of color expansion (white, yellow) making cars appear larger and contraction (black, gray) making them seem smaller, influencing driver behavior and potentially increasing safety.



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