The entire trip lasted only 8 days, the time spent on the surface was less than one day, the entire time spent walking on the moon, a mere 2 1/2 hours - but they were surely historic hours
Dica: Tiago Dória
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The entire trip lasted only 8 days, the time spent on the surface was less than one day, the entire time spent walking on the moon, a mere 2 1/2 hours - but they were surely historic hours
In On the Origin of Species, Darwin claimed that there was a continual ’struggle for existence’ in nature, in which only the fittest would survive. This theory came partly from his reading of Thomas Malthus’s Essay on the Principle of Population. Malthus and his followers believed that the earth could never support the numbers of human beings and other creatures that were born. For Darwin, the inevitability of a struggle for survival was the key to evolution by ‘natural selection’ (…) New species very gradually came into being, while many old species became extinct.A SBPC (Sociedade Brasileira para o Progresso da Ciência) também criou um site sobre o assunto, que inclui uma ótima relação dos livros de Darwin e sites sobre o assunto disponíveis na net:
most explanations for Britain’s industrial revolution focus too much on supply—of inquiring scientists, landless workers, helpful laws. These conditions were conducive to a great leap forward but not sufficient. Nor were they exclusive to Britain. Property rights were arguably more secure in France; much of the science behind the steam engine took place in Italy and Germany; the Dutch were highly urbanised.
All or none may be true, but all raised tensions in the capital. Even without them, the reality of what happened on the night of June 3rd-4th was a ghastly cause for fear. For the first time in Communist China's 40 years, the People's Liberation Army turned on the people themselves—not with tear-gas and batons, but with tanks, armoured personnel carriers and volley after volley of automatic rifle fire.Para quem quiser mais, segue um vídeo da BBC feito durante o ataque.
"A América, apesar de concebida para a liberdade, nasceu com um pecado original", escreve Reynolds. A prova mais contundente desse pecado está em sua declaração de independência, de 4 de julho de 1776. O documento estabelece que "todos os homens foram criados iguais, dotados pelo Criador de certos direitos inalienáveis, entre os quais a vida, a liberdade e a busca da felicidade". Mas Thomas Jefferson, terceiro presidente dos Estados Unidos e redator do texto, era ele mesmo dono de dúzias de escravos negros.
Esse é um trecho da resenha do excelente Empire of Liberty: a new history, do historiador inglês David Reynolds, que fiz para a revista Exame e está disponível online.
Foto de Thomas Jefferson