Tha resulting chain of vortices is sometimes called the Von Kármán street. Albeit the turbulence is generally connected with energy dissipation, the formation of vortex lattice decreases the friction in the surface layer instead, thus making the environment a bit superfluous by the same way, like the formation of quantized vortices in Bose-Einstein condensates. Therefore the AWT logo illustrates the superfluous nature of vacuum, too. Note the possible "extraterresterial origin" of graphics, created on July 27, 2001 in Rybury/Tann Hill, England...;-)
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7 comments:
Totally agree with your suggestion.. Very nice post and good information here..Thanks for posting that.. Readrspi 15
It's how the universe gets repainted.
HTML5 Code for animated AWT logo
<html>
</head>
<body>
<canvas id="myCanvas" width="800px" height="800px">
Your browser does not support the HTML5 canvas tag.</canvas>
<script>
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
//ctx.strokeStyle="#FF0000";
ctx.lineWidth =0;
var depth=8;
var offsetAngleRight=0;
var offsetAngleLeft=0;
var a=0;
var pi=3.14159265;
//fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
g = setInterval(animate,10);
function animate(){
drawCircle(0,0,800,a,1);
a=a+.5;
}
function drawCircle(x,y,size,angle,iteration) {
fillArc( x, y, size, angle,180,"#000000");
fillArc( x, y, size, angle+180,180,"#FFFFFF");
if (iteration <depth) {
var halfsize=size/2;
var quartersize = size/4;
var centerx = (x+halfsize);
var centery = (y+halfsize);
var cost = Math.cos(angle/57.2957+1.5706)*halfsize/2;
var sint = Math.sin(angle/57.2957+1.5706)*halfsize/2;
var rightx = sint+centerx-quartersize;
var righty = cost+centery-quartersize;
var leftx = centerx-sint-quartersize;
var lefty = centery-cost-quartersize;
drawCircle(rightx,righty,halfsize,angle+a+offsetAngleRight,iteration+1);
drawCircle(leftx,lefty,halfsize,angle+a+offsetAngleLeft,iteration+1);
}
}
function fillArc(x,y,width,startAngle,angle,fcolor) {
cx=x+(width/2);
cy=y+(width/2);
var sangle=-startAngle*3.14159265/180;
ctx.beginPath();
ctx.fillStyle = fcolor;
ctx.arc( cx, cy, width/2, sangle,sangle+pi);
ctx.fill();
ctx.closePath();
}
</script>
<style>
</body>
<html>
http://www.physics.emory.edu/faculty/boettcher/Research/rw.htm
https://en.wikipedia.org/wiki/Cahn%E2%80%93Hilliard_equation
Cool animation, Zephir! Thanks for posting it. What is the significance of the Cahn-Hilliard equation with regards to aether wave theory?
Circular infinity animated
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