Sunday, September 9, 2018

Week Two




Electric Body Manipulation response:

In the essay Electric Body Manipulation as Performance Art: A Historical Perspective the authors explore the history of how electricity can be used to manipulate facial expressions as well as other body parts for performance purposes.  The article delves into the history of electricity and whether or not alternating current (AC) is a more reliable source of power than direct current (DC).  Although the primary purpose is to influence human muscle for reactions based on an electrical current, such as facial expressions and involuntary movement of an individual’s limb. The essay also discusses other uses of electricity. Once a demonstration of how electricity could be used as a means of a humane tool for execution. This theory was proved possible by Thomas Edison, when they had to put down a violent elephant. The article dives into various uses of how electricity can stimulate the nerves of individuals who’ve recently passed, but it fails to mention the use of electricity in the treatment of mental health issues such as mania, bipolar, and depression.  It’s still being used today but it’s now referred to as electroconvulsive therapyand administered in conjunction with an anesthesia.
  The artform itself has evolved to the point where artists/designers have now started using algorithms to input the electrical stimuli so that there is a more natural and less chance of repetition of movements and or inputs.

Art of Noise response:

The manifesto The Art of Noise (1913), I learned that noise is only noise if you don’t enjoy listening to it. This isn’t limited to just musical instruments by any stretch of the imagination. The bottom line of this essay in my estimation is that it’s not only subjective but evolves as you grow older.  When I was younger around eight or nine years old, I went to an air show at our local airport. The noise from the jet engines scared me enough to want to leave. Now that I’m older and can appreciate that specific type of noise I hear more as music than noise. Tolerance to noise itself is something that has to be built up. By that I mean listening to it in small doses, then increasing the time and volume.  I’m interpreting the noise to be non-traditional music instruments, such as young children banging pot lids together ala symbols. or wooden spoons against the pots and pans themselves. The two best examples I can think of as far as combining traditional music instruments with non-traditional instruments is Tchaikovsky’s 1812 Overture(~4:12 into video) in which field canon’s are being fired. The second piece is called Autobahn(~0:07 auto / 4:06 doppler effect) and it was composed by a German group named Kraftwerk. The song not only employed the audio of a car, but also incorporated the use of the doppler effect as well. Combining traditional instruments with non-traditional instruments can be traced back centuries, but it’s only limited by one’s imagination.


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Tuesday, September 4, 2018

Lecture Notes 28 Aug 18









Blog
Entry
27 Aug 2018

In our first class lecture we learned about the following:
What are Amps
How the gauge of wire impacts the speed of travel of the Amp though it.
What are conductors
What are Insulators
What are schematics
Electronic components
Supply Symbols
Resistors
Ohms
  Ohm app
Polarity
LED Schematic
Integrated Circuits
Physical Computing
 Eye Writing
 Text Rain
 Pigeon Blog
 Human Machine Interaction


What Are Amps?   

The ampere, often shortened to "amp" or A, is the base unit of electric current in the International System of Units. It is named after the French mathematician and physicist André-Marie Ampère, who is considered the father of electrodynamics.

Electricity consists of the flow of electrons through a conductor, for example, an electric wire or cable. We measure the rate of flow of electricity as an electric current (just as we think of the rate of flow of water in a river as the river current). The letter used to represent current in an equation is I.

Electric current is measured in Amperes, shortened to Amps or simply the letter A.

A current of 2 Amps can be written as 2A. The bigger the current the more electricity is flowing.

Symbol for Amp is A


How the gauge of wire impacts the speed of travel of the Amp though it.



What is Wire Gauge?
The thickness of a cable or wire is defined by its gauge size.  The general rule of thumb is that the smaller the gauge number, the thicker the cable.  The standardized method of measuring the thickness of a cable was established in 1857 in the United States.  Commonly known as the American Wire Gauge (AWG), this form of measuring cable thickness is used for electrically conducting wire.  The important part to consider in determining a cables current-carrying capacity is the cross-sectional area of the cable. he diameter of the cable does not include the outer jacket of the wire, but only the copper wire on the inside.  A wire that is “True-to-Gauge” will meet and/or exceed the diameter of the copper for its AWG rating.


What are Conductors?
Conductors are materials that permit electrons to flow freely from particle to particle. An object made of a conducting material will permit charge to be transferred across the entire surface of the object. If charge is transferred to the object at a given location, that charge is quickly distributed across the entire surface of the object. The distribution of charge is the result of electron movement. Since conductors allow for electrons to be transported from particle to particle, a charged object will always distribute its charge until the overall repulsive forces between excess electrons is minimized. If a charged conductor is touched to another object, the conductor can even transfer its charge to that object. The transfer of charge between objects occurs more readily if the second object is made of a conducting material. Conductors allow for charge transfer through the free movement of electrons.


What are Insulators?
insulators are materials that impede the free flow of electrons from atom to atom and molecule to molecule. If charge is transferred to an insulator at a given location, the excess charge will remain at the initial location of charging. The particles of the insulator do not permit the free flow of electrons; subsequently charge is seldom distributed evenly across the surface of an insulator.


What are Schematics
A schematic or wiring diagram is a simple visual representation of the physical connections and physical layout of an electrical system or circuit. It shows how the electrical wires are interconnected and can also show where fixtures and components may be connected to the system.






Recognizing Electrical Schematic Symbols
Here are some of the standard and basic symbols of various components for 
1. Resistors are the fundamental components and symbols of electrical schematics. They are usually represented by zig-zag lines with two terminals extending outward.

2. Capacitors: The symbol with one plate indicates that the capacitor is polarized. A plus sign might also be added to the positive pin of the polarized capacitor symbol.

3. Inductors are usually represented by a series of curved bumps or several loopy coils.

4. Switches: SPST (a single-pole/single-throw) is the most basic switch. It has two terminals with a half-connected line representing the actuator. Switches with more than one throw can add more landing spots for the actuator.

5. Power Sources mainly has two types, DC or AC Voltage Sources. They represent either the source is supplying direct current (DC) or alternating current (AC).

6. Digital Logic Gates: Standard logic functions all have unique schematic symbols such as AND, OR, and XOR. Adding a bubble to the output negates the function, and you will get NAND and XOR.




Electronic components
Electronic Components are intended to be connected together, usually by soldering to a printed circuit board (PCB), to create an electronic circuit with a particular function (for example an amplifier, radio receiver, oscillator, wireless). Some of the main Electronic Components are: resistorcapacitor, transistor, diode, operational amplifier, resistor array, logic gate etc.
Electronic Components and Their Functions
1.     Terminals and Connectors: Components to make electrical connection.
2.     Resistors: Components used to resist current.
3.     Switches: Components that may be made to either conduct (closed) or not (open).
4.     Capacitors: Components that store electrical charge in an electrical field.
5.     Magnetic or Inductive Components: These are Electrical components that use magnetism.
6.     Network Components: Components that use more than 1 type of Passive Component.
7.     Piezoelectric devices, crystals, resonators: Passive components that use piezoelectric. effect.
8.     Semiconductors: Electronic control components with no moving parts.
9.     Diodes: Components that conduct electricity in only one direction.
10.  Transistors: A semiconductor device capable of amplification.
11.  Integrated Circuits or ICs: A microelectronic computer electronic circuit incorporated into a chip or semiconductor; a whole system rather than a single component

Supply Symbols
Electrical symbols and electronic circuit symbols are used for drawing schematic diagram.
The symbols represent electrical and electronic components.

An in depth table of electrical systems can be found here:


What is a resistor?
Resistor is an electrical component that reduces the electric current.
The resistor's ability to reduce the current is called resistance and is measured in units of ohms (symbol: Ω).
If we make an analogy to water flow through pipes, the resistor is a thin pipe that reduces the water flow.
Ohm's law
The resistor's current I in amps (A) is equal to the resistor's voltage V in volts (V) 
divided by the resistance in ohms (Ω):


The resistor's power consumption P in watts (W) is equal to the resistor's current I in amps (A) 
times the resistor's voltage V in volts (V):

The resistor's power consumption P in watts (W) is equal to the square value of the resistor's current I in amps (A) 
times the resistor's resistance R in ohms (Ω):

The resistor's power consumption P in watts (W) is equal to the square value of the resistor's voltage V in volts (V) 
divided by the resistor's resistance R in ohms (Ω):


Ohms
symbol: Ω
Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.
To students of electronics, Ohm's Law (E = IR) is as fundamentally important as Einstein's Relativity equation (E = mc²) is to physicists.


  Ohm app
ohm's law calculator simple application that will calculate voltage, resistance, current and power from any 2 given values. will calculate using correct formula with given values. useful tool for any electrical / electronic engineer. 

Polarity
Polarity is a term used in electricity, magnetism, and electronic signaling. Suppose there is a constant voltage , also called an electric potential or electromotive force (EMF), between two objects or points. In such a situation, one of the objects or points (poles) has more electrons than the other.

LED 
LEDs trade electrons for photons — light! And just as batteries have different chemistries and voltages, LEDs too have a unique forward voltage (abbreviated VF) at which they operate, a function of their chemical composition.




Integrated Circuits
An integrated circuit (IC), sometimes called a chip or microchip, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors, and transistors are fabricated. An IC can function as an amplifieroscillator, timer, counter, computer memory, or microprocessor. A particular IC is categorized as either linear (analog) or digital, depending on its intended application.



Physical Computing
Physical Computing is an approach to computer-human interaction design that starts by considering how humans express themselves physically. Computer interface design instruction often takes the computer hardware for given — namely, that there is a keyboard, a screen, speakers, and a mouse or trackpad or touchscreen — and concentrates on teaching the software necessary to design within those boundaries. In physical computing, we take the human body and its capabilities as the starting point, and attempt to design interfaces, both software and hardware, that can sense and respond to what humans can physically do.

  
 THANK YOU








Friday, August 31, 2018

What is Pyhsicomp?


 What is Pyhsicomp?

Physical computing is the blending or merging of human and computers, in such a way that they are

 complimenting each other rather than competing with each other. Immediately Apple comes to mind 

with their Apple watch. Apple has even gone so far as to update their Human Interface Guidelines. 

From my understanding this allows for a smoother user interface with their watch, which could 

ultimately conclude with mental commands for the watch to execute. On the art side, one of our 

projects is going to be a throwie, an LED connected to a magnet and tossed against a metal object. If 

enough of these throwies are made, they can mimic what a graffiti artist would do with a spray can of 

paint. The main difference between the two is that the magnets are less destructive than paint. The 

basic premise of human machine interface, as far as artwork is concerned is it’s limited only by our 

imagination. 

References

Hello World!!

I'm baaaaaccckkkkk! but not in a Here's Johnny aka The Shining sort of way. I'm looking forward to this semester. Even though I've had the last two weeks off, that's when I finished my summer courses, I'm finding it's still going to take me a few weeks before I find my feet and get into a good rhythm
 of balancing my life and school.

I'm one of those non traditional students.  I served in the military for 24 years, after that I transitioned into a contractor and finally I became a civil servant.  Due to some medical issues my time working for the government came to crashing halt in August 2015.

So with that being said, i'm now a student, still trying to figure out what I want to do when I finally grow up and graduate from UWF.