复杂世界的简单法则

最近读《规模》,了解到一些复杂世界的简单法则挺有意思的。

动物体重越大,代谢率(每天需要多少食物才能生存)就越高;一种动物体重如果是另一种的2倍,代谢率实际上只增长了75%,规模每扩大一倍,便会产生25%的节余;一种动物体重如果增长1倍,心率会降低25%;动物一生中心跳次数跟体重无关,是个恒定值。

重量和强度的关系:重量对体积,强度对横截面级,重量每增长至原来的1个数量级的倍数,强度只会增长直原来的2/3个数量级的倍数。场景1:人的力量随体重的增长以2/3个数量级的比率增长。个体偏差,表现出超过这个斜率就是世界上最强壮的人;应用2:儿童药量,随着儿童体重增长1倍,药量不能增加1倍,而只要2/3个数量级。

无论生命体、城市还是公司,都可以统一为同样的网络模型:由空间填充,有恒定的终端单元,将液体输送至整个系统所需的能量最小化。以生命体为例,这个由心脏和血管完成,为尽量减少心脏负担,经过不断进化,使得血管网络的任何分支点都不存在反射现象,分支点出发的子血管横截面面积总和与抵达分支点的母血管的横截面面积总和相等,即分形理论。

2,176人评论了“复杂世界的简单法则”

  1. Greetings! This is my first visit to your blog! We are a collection of volunteers and starting a new initiative in a community in the same niche. Your blog provided us useful information to work on. You have done a outstanding job!|

  2. I have to convey my affection for your kind-heartedness giving support to visitors who actually need guidance on this area of interest. Your personal dedication to passing the message all through came to be remarkably invaluable and has always made those just like me to achieve their pursuits. Your entire helpful hints and tips indicates much to me and extremely more to my mates. Thanks a lot; from each one of us.

  3. I would like to show thanks to you for bailing me out of this particular issue. After surfing through the online world and coming across notions which are not beneficial, I thought my entire life was gone. Being alive without the strategies to the problems you’ve fixed by way of this website is a serious case, as well as the ones which could have negatively affected my entire career if I had not discovered your site. Your actual training and kindness in taking care of a lot of things was very useful. I don’t know what I would have done if I had not encountered such a subject like this. I can also at this moment look ahead to my future. Thank you so much for this specialized and results-oriented help. I won’t think twice to endorse your web site to anybody who would need support about this matter.

  4. My husband and i felt absolutely ecstatic when Edward could deal with his studies out of the ideas he got while using the weblog. It’s not at all simplistic to just continually be offering key points which others could have been trying to sell. So we understand we have got the writer to give thanks to for this. The most important illustrations you’ve made, the simple website navigation, the relationships you can assist to engender – it’s got all astonishing, and it’s assisting our son in addition to the family understand that theme is entertaining, which is rather essential. Thank you for the whole lot!

  5. Today, I went to the beach front with my kids. I found a sea shell and gave it to my 4 year old daughter and said “You can hear the ocean if you put this to your ear.” She placed the shell to her ear and screamed. There was a hermit crab inside and it pinched her ear. She never wants to go back! LoL I know this is completely off topic but I had to tell someone!|

  6. An impressive share! I’ve just forwarded this onto a colleague who had been conducting a little research on this. And he in fact bought me breakfast due to the fact that I discovered it for him… lol. So allow me to reword this…. Thank YOU for the meal!! But yeah, thanx for spending some time to discuss this subject here on your web page.

  7. You’re so awesome! I do not think I have read something like this before. So great to discover someone with unique thoughts on this topic. Seriously.. thank you for starting this up. This site is something that is needed on the internet, someone with a little originality!

  8. Your style is unique in comparison to other folks I have read stuff from. I appreciate you for posting when you have the opportunity, Guess I will just bookmark this blog.

  9. I was wondering if you ever thought of changing the layout of your blog? Its very well written; I love what youve got to say. But maybe you could a little more in the way of content so people could connect with it better. Youve got an awful lot of text for only having one or 2 images. Maybe you could space it out better?|

  10. My spouse and i felt really relieved that Emmanuel could deal with his homework via the ideas he obtained out of your site. It’s not at all simplistic to simply continually be offering thoughts many people may have been selling. We know we need the blog owner to give thanks to for that. Those explanations you’ve made, the simple site menu, the relationships you aid to engender – it is everything exceptional, and it’s making our son in addition to us consider that that situation is excellent, which is seriously mandatory. Thank you for the whole lot!

  11. I wanted to jot down a message to be able to say thanks to you for these precious tips and hints you are giving at this website. My time-consuming internet lookup has finally been recognized with pleasant facts and techniques to go over with my two friends. I ‘d admit that we readers are definitely endowed to live in a magnificent community with many marvellous people with very helpful guidelines. I feel truly grateful to have come across your website and look forward to many more entertaining moments reading here. Thanks a lot once again for everything.

  12. I have to express thanks to you just for bailing me out of such a issue. As a result of scouting through the world-wide-web and obtaining recommendations that were not beneficial, I believed my entire life was over. Being alive devoid of the answers to the issues you’ve fixed as a result of this posting is a critical case, and those that could have badly affected my entire career if I had not encountered the website. Your own personal mastery and kindness in handling all the stuff was useful. I’m not sure what I would have done if I hadn’t encountered such a thing like this. It’s possible to at this time relish my future. Thanks very much for the specialized and result oriented help. I won’t be reluctant to suggest your web site to anybody who should receive tips on this matter.

  13. Oh my goodness! Awesome article dude! Thank you so much, However I am encountering troubles with your RSS. I don’t understand why I am unable to join it. Is there anyone else having similar RSS problems? Anyone that knows the solution will you kindly respond? Thanks!!

  14. ????????? – ???? Sexual and intimate relationships let someone have you to voluntarily inquiry with outlooks on life. Articles or photos fake not exclusive the practical consistent, but also through harmonies on the ranting component of a person. Drug addiction come up to b become prostitutes is create in 91% of all screwing services for the benefit of money. We plug that you be careful.

  15. I must express my gratitude for your kind-heartedness supporting men who really need guidance on in this field. Your very own dedication to getting the solution all through had become extremely informative and have usually helped employees much like me to realize their endeavors. Your new informative facts indicates this much to me and additionally to my colleagues. Many thanks; from all of us.

  16. My spouse and i were really excited when Peter managed to carry out his survey using the precious recommendations he acquired while using the site. It is now and again perplexing to simply find yourself releasing key points which often some other people have been trying to sell. And we figure out we’ve got the blog owner to be grateful to because of that. These illustrations you made, the straightforward website navigation, the friendships your site help to engender – it is many spectacular, and it is aiding our son in addition to the family know that this situation is excellent, which is certainly rather important. Many thanks for the whole lot!

  17. I simply needed to appreciate you all over again. I do not know what I could possibly have created without the ways revealed by you on that industry. It has been the frustrating problem for me personally, however , observing the specialized form you processed the issue forced me to jump with fulfillment. Now i am happy for this information and as well , expect you know what a powerful job you were carrying out training men and women thru your websites. Probably you have never met all of us.

  18. An intriguing discussion is definitely worth comment. I do believe that you should publish more on this subject matter, it might not be a taboo matter but generally people do not talk about these subjects. To the next! Many thanks!!

  19. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  20. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  21. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  22. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  23. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  24. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  25. The road seemed to stretch on endlessly before us, but Alexis assured me that our journey was near an end. We’d turn before long into thick woods and travel through narrow, winding roads until we reached her family’s cabin. I had no choice but to trust her as GPS had given out nearly 20 minutes ago.

    “There’s good wifi and okay reception at the cabin,” she’d told me, “but you can’t get there unless you know the way.”

    So here I was, driving alone in the middle of god knows where with a girl who was my student just a couple of weeks ago. Her and her four best friends had been together from first grade all the way through high school and now they had graduated with very different futures ahead of them. They had decided to kick off “the best summer ever” with a week long stay at Alexis’s family cabin. Alexis and I were heading up before everyone else, the four other girls and four guys.

  26. Any wench will shout you up. Any courtesan purpose creation inoperative her payment by dancing a striptease not professionally. In Kiev, girls providing prostitute services purposefulness raise your spirits and sex apparatus to dancing.????????? – ????

发表评论

邮箱地址不会被公开。 必填项已用*标注