Engineering Project table...
By Jake Kempa and Daniel Enseleit

The "Stress-Be-Gone Pet Feeder!"

Design Process Step
Description of what I did in this step.
Define the Problem
One problem I found with many peoples' day-to-day lives is feeding and watering pets in a clean and timely fassion. If you have pets of a different species, you have to deal with putting out different kinds of food from a bag using a cup or pouring. This can cause a mess or slow you down. You can also find that you are out of food and then your pets go a day without food. You can use food or water despensers, but your pet could over indulge and get seriously sick.
Brainstorm/Design Solution
I came up with a couple of solutions to this problem. The first one was some sort of automated dispensor that could give out certain amounts of food or water whenever you wanted it too. The problem with this could be the weather. If it gets too cold, the computer could malfunction or break. Water could also seep in and damage the computer. I suppose with good technology, this idea could be perfected and built, but I later came up with a more manual solution. In this solution, there would be 2 old water jugs hung upside-down that could hold your food and water and would be attached together, and to a wall. At the opening to these jugs could be a latch/lid type object that could open to release the food. It would also only open halfway to prevent clogging up. There would also be another lid on the top to refill the food and water, and the whole invention is also beneficial because it tells you when you are running low on food.

Photo_00001.jpg
<----- Our blueprint!!!
Build Test/Gather Materials and Evaluate
When we finally got to building the , we needed two old gallon jugs, a 2x4 piece of wood to mount the jugs, some 3-inch screws, and a small piece of cardboard (please keep in mind that this was a prototype). We only actually used one of the jugs as a functioning jug as it was again, only a prototype. We sawed off the bottom of the jug to act as a lid because when we put it on, we put it on upside down to funnel the food. After that, we sawed part way into the top of the jug so we could slide a piece of cardboard to stop the food from coming out, that way you could slide out the cardboard to release the food. After we did the sawing, we screwed on the jugs to the board. We then tested based on time. We measured how fast it takes to release half a cup which was 4.92 seconds. We then measured how fast it takes to release 1 cup which was 10.8 seconds. You also have to keep in mind that as this is a prototype it had to be shaken a bit to get the food out. If it were to be sold, it would have to be made out of a little better material with a few minor adjustments.
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Jake's Research Project (The Television)

My Prezi


The Beginning

Early inventors, after some electronic breakthroughs, saw a problem with getting information to people. How do we get visual news to people in their homes, and fast?

The first major breakthrough was made by Paul Nipkow (Niphow), with the invention of scanning disks. These disks (two layered on top of each other), had rows of spiraled holes that, once an image of light was shot through, would break up the image into information. Then it could be put into an electric signal, and sent to a receiver.

Paul Nipkow's (Niphow's) Impact

After Paul Nipkow's invention of the scanning disks, many inventors decided to build off of his great invention. The next two people, A.A. Campbell-Swinton, and Boris Rosing came up with the idea of Cathode Ray Tubes (CRT's). CRT's were and are where the image passes through into a vacuum. This, along with the scanning disks, was the beginning of two types of television: Mechanical and Electrical.

The Mechanical Television

The first practical mechanical television sold was by an American inventor by the name of Charles Jenkins. His television was sold in a set as well. After that, a british inventor, John Logie Baird, transmitted the first ever moving image.
Even though the mechanical television saw many great improvements, everything was eventually converted into the electric television.

The Electrical Television

The electric television was and is what we use today. With the combination of the CRT and the Nipkow Scanning Disks, an image could be broken up into a certain amount of rows of information, then sent to a receiver where it could be sent through a CRT into a vacuum and on to the screen where we see the image. The first ever image sent was comprised of 60 horizontal lines and the image was a dollar sign. As time went on, color television got added to the mix by using three basic colors to make an almost infinite amount of color.

My Bibliography