# Satellite Dish Project - PowerPoint PPT Presentation

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Satellite Dish Project. Power-Point by Jordan Schettler. Outline. Introduction Phase I: Research Phase II: Make a Model Phase III: Show Off Time Phase IV: Why it Works. Introduction. The Superdish Network wants you and your research team to design and build a prototype parabolic dish.

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Satellite Dish Project

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### Satellite Dish Project

• Power-Point by Jordan Schettler

### Outline

• Introduction

• Phase I: Research

• Phase II: Make a Model

• Phase III: Show Off Time

• Phase IV: Why it Works

### Introduction

• The Superdish Network wants you and your research team to design and build a prototype parabolic dish.

• Your team will be in competition against other teams for the job.

• Everyone must contribute to make this a success.

### Phase I: Research

• Students made brochures which included the following information (as well as there own personal touch):

• What is a parabola?

• The standard form: 4p(y - k) = (x - h)2

• Vertex: (h, k), Focus: (h, k + p), Directrix: y = k - p

• How does a satellite dish work?

• What materials will you need for your project?

### Phase II: Make a Model

• Students made schematic drawings and prototypes

### Prototype Formula

• (x-h)2 = 4P(y-k)

• 4P=16; P=4

• (0,0)= Vertex

• Create formula

• Draw

• Build

• Test

EchoStar “We Work

### Phase III: Show Off Time

• Students build full scale dishes and make power-points

### Installing the Focus

Some Finished Products

### Testing the Products

Student Power Point Samples

### KTKM Corp

• Dishing out a better future

Function

4p

Vertex : (0, 0)

4p=12 , p=3

Focus: (0 , 3) , Directrix : y=-3

### Constructing Our Satellite

• Measurements

• Focus: 16 inches

• Diameter: 28 inches

• Circumference: 87.92 inches

• Height of dish: 12 inches

• Curve: x2=16y

• Hard cardboard foam

• Poster board

• Ruler

• Folder

• Hot glue gun

• Pencil

• This is the outline where we glued the foam pieces down. We made all 16 angles be the same so the satellite would work better.

This is how the base of how our

satellite looked like but it wasn’t all

finished at this moment.

Step 6

Cut the focus to stick on the model

6 inches

### Phase IV: Why it Works

• Students learn the calculus behind reflection

### Vertical Beam on a Curve

• The slope of the reflected line is the average of the slopes of the tangent and normal lines

### Vertical Beams on a Parabola

• The parabola has the feature that vertical beams are reflected through a common point, the focus.