-
The AEther
+
The AEther
In early modern physics, the AEther (or Ether) was believed to be an invisible space-filling substance or field that was a transmission medium for electromagnetic or gravitational forces.
-
Tait's Tabulature of Knots
+
Tait's Tabulature of Knots
Peter Guthrie Tait (1837-1901) was a Scottish mathematical physicist, whose investigations in knot theory contributed to the field of topology as a mathematical discipline. while conducting experiments with a machine that blew smoke-rings. Tait observed that the rings had a regular donut-like form, which he hypothesised was the result of atoms within them bonding through the Ether.
-
1867: A note from Peter Guthrie Tait scribbled on an envelope asks an unknown recipient "Can't you come on Monday the present at the performance? An elliptical hole gives the rings in a state of vibration!!!"
+
1867
+ A note from Peter Guthrie Tait scribbled on an envelope asks an unknown recipient: "Can't you come on Monday the present at the performance? An elliptical hole gives the rings in a state of vibration!!!"
In a room, thick with smoke, Tait and William Thomson (Lord Kelvin) are conducting an experiment to test the German scientist Helmholtz's theory, that closed vortex lines in a fluid remain stable forever. Tait is using a box that emits smoke made from a pungent mixture of ammonia solution, salt and sulfuric acid. He taps the back of his makeshift vortex cannon, and thick rings waft from a hole drilled in its front. Tait describes them "like solid rings of India rubber". His theory is that each smoke ring is structured around knots in the ether, a space-filling substance that was believed to transmit matter. Tait begins to tabulate possible forms of mathematical knots, contributing to the mathematical field of knot theory.
-
Knots
+
Knots
A knot is an entanglement, an intentional complication in cordage.
-
Knot Theory
+
Knot Theory
Knot theory is a field of mathematics that studies the topology of knots.
-
Unknot
+
Unknot
The unknot, or torus , is the first type of mathematical knot listed in knot theory. Intuitively, the unknot is a closed loop of rope without a knot in it.
@@ -28,9 +29,9 @@
-
Mathematical knots
+
Mathematical knots
Mathematical knots, or
-
Knotworks
+
Knotworks
Knotworks are visualisations of network topologies which use mathematical knots to represent a collapsing of the distinction between node and link. Just as a knot is a complication in which the tangle can conceal parts contained (as in klein worm topologies ), unravelling the knot reveals that it is homeomorphic to a continuous link. The link and the node are the same, unravelled.
diff --git a/pages/style.css b/pages/style.css
index 0758368..e4def91 100644
--- a/pages/style.css
+++ b/pages/style.css
@@ -1,24 +1,24 @@
/*@font-face {
- font-family: 'courier_newbold_italic';
- src: url('fonts/courier_new_bold_italic-webfont.woff2') format('woff2'),
- url('fonts/courier_new_bold_italic-webfont.woff') format('woff');
+ font-family: courier_newbold_italic;
+ src: url('courier_new_bold_italic-webfont.woff2') format('woff2'),
+ url('courier_new_bold_italic-webfont.woff') format('woff');
font-weight: normal;
font-style: normal;
}
@font-face {
- font-family: 'courier_newbold';
- src: url('fonts/courier_new_bold-webfont.woff2') format('woff2'),
- url('fonts/courier_new_bold-webfont.woff') format('woff');
+ font-family: courier_newbold;
+ src: url('courier_new_bold-webfont.woff2') format('woff2'),
+ url('courier_new_bold-webfont.woff') format('woff');
font-weight: normal;
font-style: normal;
}
@font-face {
- font-family: 'courier_newitalic';
- src: url('fonts/courier_new_italic-webfont.woff2') format('woff2'),
+ font-family: courier_newitalic;
+ src: url('courier_new_italic-webfont.woff2') format('woff2'),
url('fonts/courier_new_italic-webfont.woff') format('woff');
font-weight: normal;
font-style: normal;
@@ -26,7 +26,7 @@
}
@font-face {
- font-family: 'courier_newregular';
+ font-family: courier_newregular;
src: url('fonts/courier_new-webfont.woff2') format('woff2'),
url('fonts/courier_new-webfont.woff') format('woff');
font-weight: normal;
@@ -61,8 +61,6 @@ b {
}
h1 {
- font-family: inherit;
- font-size: inherit;
text-decoration: underline;
line-height: 120%;
text-align: left;
@@ -70,10 +68,10 @@ h1 {
}
h2 {
- font-family: 'Times', 'Times New Roman', serif;
- font-size: 36px;
+ font-size: inherit;
line-height: 120%;
- text-align: center;
+ text-align: left;
+ text-decoration: underline;
font-weight: normal;
}
diff --git a/pages/wijnhaven_to_foshan.html b/pages/wijnhaven_to_foshan.html
index 692ad4d..456163d 100644
--- a/pages/wijnhaven_to_foshan.html
+++ b/pages/wijnhaven_to_foshan.html
@@ -1,4 +1,4 @@
-
+
wijnhaven_to_foshan
@@ -10,7 +10,7 @@
-
Taking a line for a walk
+
Taking a line for a walk
I'm making drawings by walking and tracking myself over GPS using an app on my phone. I walk door-to-door between homes containing a homeserver in our network. The app I'm using displays my path as a jagged line, alongside information about the distance, altitude, speed, pace and time elapsed. When I reach my destination I save the walk, export it as a .gpx file to my computer, and then load it into software for plotting geospatial information. In the graphic interface of this software the track points are connected with a series of lines that link them together into a route.
This is a visualisation of my movements, abstracted into a line for quick and easy representation. Ask someone to draw a route from A to B and they'll probably draw a similar series of lines, bending where you should make a left or right turn. The most direct route is a completely straight line (as the crow flies) but this is hardly useful to the average pedestrian. Utility here is predicated by a delicate balance between a certain level of detail, and a certain level of abstraction.