曼德尔布洛特集
科赫雪花
分形应用
用于探知为何体积越大单位所需能量越少,即E=M的3/4方。
用于解决无线通讯中如蓝牙、无线通讯、wifi等需要单独频率但避免多个天线的应用
用于检测心脏健康。
三年前看过的纪录片,这是我——一个理科不好的同学对于自然科学最后的反扑,因为硬想要深刻所以觉得这部显得平淡,其实放开了心态看的话,就只要坐着感叹好美啊好美啊好奇妙啊就可以了,科学原理乃至现实应用不妨交给科学家们来做。
The film is about fractal geometry. Someone calls fractal geometry 'the natural dynamics of everything' (a video title, 2011, available at
//www.youtube.com/watch?v=yUM7e0tIFi0). Why? Because it explains the shapes of everything in the nature: why the British coastline looks like that, why mountains looks like that, why the trees look like that, why the vessels in the body look like that, ect., etc..
Fractal geometry was invented by Benoit Mandelbrot from 1950. In general, it is a combination of classical geometry (coined by Euclid) and algorithm. The most famous fractal - The Mandelbrot Set - derives from a circle and a generating function 'f(z) = z^2 + c'. (For more knowledge, visit
http://mathworld.wolfram.com/MandelbrotSet.html)
In reflection, fractal geometry could help us to understand the underlying order governed by simple mathematical rules. According to this theory, there must be a rule that governs the formation of the nature and all the living things/creatures. Perhaps the rule is set by the God. God is simple, straightforward and God seems not encountered complex things, thus God create everything as they assumed to be. A significance of fractal geometry might be that it finds out the rules of the nature, which implies that the nature is possibly created and ruled by something. So far, we may easily shift our thoughts to another interesting invention in the 20th century - the Artifical Intelligence. With the emergence of computer, multiple complex things can be handled by computer programming. Some people may say, artificial intelligence is God. (see
http://www.artificialintelligenceisgod.com/index3.html) If science explains the world created by God, then technology is the 'new God' that changes the existing world. Is it? If it is so, then there must be a number of Gods that mobilize the evolutions of all things in our history. On the other hand, however, like technology is rooted in science, science is rooted in the nature, and evolutions of all things are rooted in the earliest forms and the evolution of a certain thing follows a common rule. Therefore, this question seems unanswerable by philosophy of science, except acknowledging the existence of God. So I just want to stop here.
Drawing on the former argument, fractal geometry could help us to understand the underlying order governed by simple mathematical rules, I have another question: is this process reversible, i.e., could the setting of rules help generate complex ideal orders? In my own field, urban planning and design, I acknowledge that some scholars have studied how, or if it is possible, a set of simple rules may generate ideal urban form (Alexander, 1966; Marshall, 2009). However, city is formed by both controllable and uncontrollable, visible and invisible forces. And the urban form becomes more and more complex, and the urban problems continuously emerge with the increasing complexity of our society. In my view, the study of ideal urban forms, no matter by what means, is something similar to the system dynamics mentioned by Meadows et al. in their book 'The Limits to Growth' - a game of idealism.
空城
6 April, 2014
Film available at
//www.youtube.com/watch?v=s65DSz78jW4 ;
看完后,这电影给我的感受就是四个字:以小见大。想到生活的一个案例,周末去教小朋友画画,在课间的10分钟,一个小孩冲去厨房,吃了一对鸡翅、半碗饭、一个荷包蛋、一根香肠、还有一瓶酸奶。另外一个小孩躺在沙发上听当季连续剧的主题曲。短短十分钟不算长也不算短,确实是反映了两个小朋友个性上的差别,而这种差别也确实能从他们的体形上很好地反映出来......
Loren Carpenter (visualize)-> what the planes might look like in flight.
Fractals - Form, Chance, and Dimension by Benoit Mandelbrot
It's one of the keys to fractal geometry call iteration in mathematicians.
First Mountain and then "Star Trek II" the Wrath of khan.
Self-similarity always zoom in and out the object look the same.
People like the great 19th century Japanese artist Katsushika Hokusai
the mystery of the monsters, a story really begins in later 19 century, Georg Cantor (German)
Created first monsters in 1883, call " Cantor Set."
Another by the Swedish Helge Von Koch, one of the classical Euclidean geometric figures.
in the 1940s, British Scientist Lewis Richardson,
Koch Curve he wrote a very famous article i Science Magazine called " How Long is the Coastline of British."
Dimension
French Gaston Julia
Mandelbrot in IBM
one the combined all of the Julia sets.
f(Z)=Z2+C into a single image. The Mandelbrot Set
Late 1970s, Jhane Barnes
new book "the Fractal Geometry of Nature"
1990, a Boston radio astronomer Nathan Cohen
have been discovered back in the 1930s.
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E=M 3/4
A General Model for the origin of allometric scaling laws in Biology
分形像宇宙的密码,要不总说人类的本质也是“复读机”呢~很好的视角和资料补充。
大自然的秩序是神的语言
深入浅出地介绍了分形几何学的发现和一些应用
“用分形几何来理解自然的复杂性。”
片子是好片子,但是我看分形图条件反射式生理不适,头晕恶心
海岸线的长度是无法测量的 海岸线的长度取决于你选取的单位长度pbs.org
数字也有图形之美~~
客观事物具有自相似的层次结构,局部与整体在形态、功能、信息、时间、空间等方面具有统计意义上的相似性,称为自相似性。8.2
伟大的分形~(一颗罗马花椰菜引出的科普)
哇!
分形几何,迭代。。。。由简单到复杂,最基本逻辑思维。。。。世界历史如此
讲分形几何。不懂数学但看着也挺美。
fractal could be found in everywhere
迷人。無序中尋找秩序。探索與理性的輝光。人類以數學的眼睛觀察和詮釋世界、閱讀自然之書,祛魅所帶來的不是魅力的消解,隨著理解無限的逐層深入、自然神秘面紗的一層層揭開,世界變得愈發迷人。
非常棒的一部纪录片。不只揭开了大自然的几何,并说明大自然的几何与人类数学几何的关系。看完片子后,去找了一些关于FRACTAL GEOMETRY 的资料来看。发现这理论说明了次元空间的连贯,这我从没听过的。比如,一些FRACTAL是处于0.68元空间。
分形真美
我承认我数学不好。
分形理论产生后,不仅影响了数码影片,海岸线测量,服装设计等领域,实际上EX的冠状网络地图也是利用分形原理产生的一种直观的统计方法。@神棍邓 @哀矜者福
启发很大!!!!
分形几何之应用篇,致敬数学家本华•曼德博先生。