# Geometry: the hidden source of patterns

This is not meant to be an introduction to geometry, more  of an introduction to the concept using basic tools.

Didi you ever wonder how Europeans made  ‘heater’ shields that exact, distinct shape?

I stumbled into this the other day. It seems there’s a simple geometric pattern that can be made with basic tools.

No ruler required. no need to worry about inches or cubits.

Shape of a shield defined. 3 squares side ‘A’ along the top,and a radius 3 times the length of 3*A from the bottom corners.

All you need is to make a square using a single arbitrary length, and then to make a radius 3 times longer perhaps with a string.

Perhaps not the most useful item in this day and age, but the concept is that you can make a complex pattern simple if you understand the simple rules in the pattern.

Look for the simple pattern, its probably there.

# Social parasites are as old as social organisation itself.

People are not the first creatures to create complex hierarchical societies, the termites and ant were doing it millions of years before us.

In fact Ants specifically have attempted almost every type of society we can think of: scavenging, farming, livestock, war, slavers, nomadic, subsistence etc.

Because of their flexibility and adaptability they have been very successful and are found everywhere except Antarctica.

Because of their successes, other creatures (the social parasites) have adapted many ways to effectively live off the ants.

Some disguise themselves visually as ants, some are expert on producing the colony identification smell to be accepted, some are even other species of ants.

But one parasite stands out as truly remarkable: the Ophiocordyceps unilateralis fungus (first identified in 1865).

It was originally  thought this fungus was  unique, but as of 2011, 3 similar fungi more have been discovered.

Most ants are largely immune to attack by fungi because they produce a toxin called 2-phenylacetic acid, which kills most fungi and bacteria. They spread this ‘disinfectant’ as they walk around.

How ever leaf cutter ants (Atta) don’t produce this chemical disinfectant because they are fungus farmers. They don’t actually eat the leaves they cut and carry, they feed the leaves to a mound of cultivated fungus in their nest and then eat parts of the fungus. It is similar to the way people make cheese by collecting milk.

So ant of the order ‘Atta’ are vulnerable to fungal infection.

Here’s how the Ophiocordyceps unilateralis infection life cycle occurs.

An ant makes contact with a fungal spore which enters the ants body.       ( infection / infiltration)

The spore releases chemicals in the ants body to take over its behavior.       ( take over the brain and control actions)

The ant then attempts to climb somewhere high into a leaf or twig.        ( take a prominent position)

The ant then make a death grip bite onto the leaf or twig it is standing on.      ( paralyze the host with a death grip )

The ant then starves to death while the fungus grows larger inside the ants body.      ( slowly kill the host, while growing larger )

The fungus grows so large it bursts out of the ant body with huge chitin horns.     (out grow the host)

Often them the fungus anchors the ants body to the leaf or twin it is on.      (cement dead host in place as a vehicle for propagation)

The fungal horns then produce fruiting bodies which then produce and release spores falling onto other ants.     (propagation)

Cycle repeats

Ant killed my brain controlling parasitic fungus. Ophiocordyceps unilateralis http://gingerdead.com/2011/05/04/parasitic-fungus/

# Theories: Not worth much untill attempted in the real world

You can make a diagram of anything but until you think through how it is going to work in reality it can be false hope.

This picture below show even the physically impossible can be plausibly drawn on paper.

The devils fork, an interesting optical illusion.

Is this an example of the furniture assembly diagrams in hell?

# Memes: One picture is worth a thousand words

I try to avoid using idioms and proverbs in writing. But sometimes an idiom is so true it is worth explaining.

One picture is worth a thousand words: means a single picture can convey so much meaning it replaces the need for ( is worth ) a thousand words.

Sometimes a single image or diagram will give the right reader so much information.

I hope this picture is conveys a lot of meaning to you.

A society built on cheap fossil fuel, this is what that society becomes.

This image is a remix of other internet memes, feel free to remix as I have done.