In these videos, I try to answer some of the questions from viewers about DMX. In this video, we look at the Elation Operator 192, talk about what it is set up to do, and daisy chain 5 different fixtures together Enjoy!
The art of shading is developed by learning to recognise volume as represented by the pattern of light, medium, and dark values of the subject before you. Once you have understand the pattern of light, then shading becomes very easy.
Let me share with you some terminology about the art of shading .
Tone: local tone is the most general value of an art work. It can be light, medium or dark but it does not matter. What is important is that an artist is able to express the drawing in a series of varying tones.
Hight light: It is the most concentrated spot of light on the drawing. Highlight appears on smooth surface.
Cast shadow: Produced by an opaque object that gets in the way of a light source.
Form shadow: Produced when an object turns itself away from the light source. It is the darker side of an object form.
Reflected light: It is light that bounces off another object and comes back to reveal the form. It is always lighter than the highlight of the drawing.
In the art of shading, always observe the objects that you are drawing. Look at the subject matter as it is important to establish an order for seeing and receiving information about the subject you are drawing.
It is always good that you build a drawing from the general to the specific. You should always see and record the overall structure of the subject you are drawing first, before getting into the details.
For example, when drawing an apple, determine the order in which you want to build the pattern of lights and darks that it presents. Observe the subject you are drawing before picking up your pencil to draw. Do not fall into the mistake of most people, that is drawing without planning.
Electrical Wire
There is all different types of electrical wiring for different applications. We will break it down for you piece by piece. Most common terms for copper electrical wire would be building wire, THHN /THWN, Romex wire, UF-B Cable and Type SE (service entrance cable). All of these copper wires and cables have their own advantages and disadvantages based on the individual wiring application. Each one will be described in more detail below. Building Wire is just another broad term used in the same way as electrical wire. Since it’s used mostly in the building / construction field its become a popular term.
THHN / THWN Wire
THHN / THWN-2 copper electrical wire is the most basic form of electrical wire which is used in houses, buildings and control circuits not exceeding 600 Volts. All of our THHN electrical wire is dual rated with THWN-2 because the THWN is so popular that South Wire (Largest Electrical wire manufacturer in the USA) decided to put both ratings on all their THHN building wire. It’s composed of soft drawn bare copper strands, covered with a PVC (Polyvinyl Chloride) insulation and a nylon coating for easy installation in cable tray. The 18 awg through 10 awg come in stranded or solid copper. The stranded wire is more flexible, while the solid wire is easier to run / snake through tough areas.
More specifically, THHN wire is run through houses and buildings to light switches, electrical outlets and light fixtures. The smaller gauge sizes of THHN is most commonly sold in 500′ spools which a lot of suppliers won’t cut. WesBell Electronics will cut the #18 – #10 to 100′ spools and cut the #8 – 1000 mcm per foot! That’s right, you can buy 1 foot of wire if needed! WesBell understands that every application is different and doesn’t want contractors to have to suffer excess copper wire. When adding that into the the resale price it could cost you the job! Buy exact lengths, get exact quotes and don’t have any extra copper at the end of it! Copper has jumped back up to over $2.00/lb, so every foot of wire counts!
Romex Wire
Romex copper electrical wires and cables are made up of multiple THHN / THWN wires (conductors). Example; Romex 12/2 is 2 THHN wires and a bare uninsulated ground wire covered with an overall PVC jacket. This way electrical contractors only have to run one bulk wire instead of either running 3 separate wires or individually running each wire. Romex wire is ONLY used for indoor applications. It has NO protection against moisture, gas or solvents. It should NOT be used outdoors even if it’s in cable tray.
UF-B Cable
UF-B (Underground Feeder) copper electrical wires and cables are a slight upgrade from Romex wiring. It has the same concept of THHN conductors wrapped with a jacket except it’s a more complex jacket. The bonus to UF-B Cable is that it can go outdoors and even directly underground. There’s no need for conduit or cable tray and the price difference isn’t that significant. If you need the cable to go outdoors at all make sure you get UF-B instead of Romex because it’s not worth the hassle of replacing the Romex down the road over something roughly 10-15% higher in cost.
Service Entrance Cable Type SE
Sometimes you will see an “R” (SER) or a “U” (SEU) after the Type SE. The R stands for round (more common) and the U stands for flat. Southwire Type SE electrical cable, service entrance cable is primarily used to convey power from the service drop to the meter base and from the meter base to the distribution panel board; however, the cable may be used in all applications where Type SE cable is permitted. SER may be used in wet or dry locations at temperatures not to exceed 90°C. Voltage rating is 600 volts. Southwire Type SE cable is constructed with sunlight resistant Type XHHW-2 conductors or Type THHN/THWN conductors.
Copper conductors are annealed (soft) copper. Cable assembly plus reinforcement tape are jacketed with sunlight resistant gray polyvinyl chloride (PVC). Available as 1 conductor with a concentric ground, 2 conductor with a round or concentric ground, or 3 conductor with a bare ground. SE cable is jacketed with gray sunlight resistant polyvinyl chloride (PVC).
If there is any one person that will forever be remembered on the face of the earth, then it has got to be Queen Victoria. It was during her reign that many of the things that are useful to us were invented. Many of those things are the ones that we take for granted and hardly take time to think about, but without them life would be dull and probably unbearable for many.
Among the things that were invented around this time is the light bulb, which apparently, was named after her. The light bulb, as we all must admit, has changed the lives of many people in a very great way. Following this invention, other developments like telephones, photography machines and cars were also invented. Think of how life would be without these things that we do not even take time to marvel at!
Today, the Victorian light bulb is a concept that even young children are well aware of right from elementary school age. This is for the fact that it has changed our lifestyles in a great way by being able to furnish us with light even in the darkest of nights. The greatest requirement is to be connected to a source of electricity. The bulbs require to be handled with care as they are very fragile, and as such, there are simple procedures that one can follow as they clean the bulb.
White alcohol or vinegar is very effective in giving the bulb a sparkling effect as well as removing all stubborn stains. The interesting thing about the bulbs is that, they can be modified to give out a color that an individual prefers. Boys are especially very creative in modifying the bulbs so that they can reflect a preferred color. One way to do so is to paint the exterior part of the bulb.
5 year old dx with Dravet Syndrome has brief absence seizures while setting up checker game.
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