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《老人戰爭》免费在线阅读

老人戰爭封面

約翰‧派瑞在七十五歲生日做了兩件事：首先，他拜訪亡妻的墓，接著，離開家園從軍去。
三個字：酷斃了。

高齡化的社會來了，這本書也許可以做個起點，看看這些一身本事，但是身體已經無法操勞的「仙角」怎麼發揮大用！

這本書大致是說：當人類終於踏入星際，但外頭適宜生存的星球十分稀有。外星種族，跟地球人一樣，願意為了爭奪家園，決一死戰。地球人於是掀起戰火。在遠離地球之境，戰爭已進行了數十年：殘暴、血腥、不願讓步。

地球上多數資源掌握在殖民防衛軍（CDF）手中，而所有人都曉得當你屆滿退休年齡，你有權選擇入伍。防衛軍不徵召年輕小伙子，他們只要身懷數十載知識與技能的老人。加入防衛軍後，你將被帶離地球，服役兩年，永遠不得返回故鄉。若十年之間你能倖存，你就會得到自己的家園－－在其中一個贏來不易的行星上。Read More »《老人戰爭》免费在线阅读

Bacteria and Microbiome Could Reshape Agriculture, Says Startup Indigo

Most Americans have long believed that all bacteria is bad bacteria. The more sterile we can make our homes and our bodies the better.

It’s only within the past decade, as scientists learned about the human microbiome—the term for the universe of 100 trillion or so microorganisms that live in, and on, each of us—that an increasing number of people have realized this is a simplistic view. Those bacteria, for the most part, aren’t bad at all. In fact, they play a massive role in maintaining good health.

It turns out that plants have microbiomes too, and the bacteria there have often been treated the way human bacteria are treated. If Cambridge, Mass.-based startup Indigo has its way, those bacteria will get the respect they deserve—and they could possibly change the face of agriculture. The approach has “huge potential,” says Martin Grube, a professor of plant sciences who studies the microbiome at the University of Graz in Austria.
Read More »Bacteria and Microbiome Could Reshape Agriculture, Says Startup Indigo