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Happy Hollow Elementary School (HHES)

Final Presentation

May 2nd, 2008

Armstrong 1092

HHES BAE Systems

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Memory Basketball Project

Project Leader: Heather Newman

Team Members: Shivani Daiya

Austin Melnyk

Leonard Pinto

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Presentation Overview Project Overview Customer Requirements Project Specifications Design Testing Educational Materials Future Goals

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Project Overview

Goal: Educate HHES students aboutMemory: How an action is recorded in the brain Vision distortion makes you rely on

memory Same action triggers memory

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Memory Basketball Overview Previously designed Returning project Improvement Delivery

Project after demolition

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Specifications Components of the system

Infrared emitter Infrared transistor NI USB 6008 ( used read the input signals) Computer LCD Screen LABVIEW software

Note: Labview is installed on the computer and a program can be written (or graphically drawn) which can count the variation is the current from the photo transistor.

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Specifications

Goggles:Vision distortion Side Light Solutions Goggles Water Soap

Normal Vision

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Specifications

1st Goggles 2nd Goggles

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Educational Materials Show that by doing an action a student remembers it. By repeating the same action it triggers the memory. By distorting the vision students rely on memory. “When you learn something wrong, it is harder to relearn

it correctly than to learn it correct the first time.”

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Future Steps Spring 2008 Semester

Restore project Fix goggles Overall testing of system

Project Goals Complete Educational Materials Deliver project to HHES

Project Delivery Date: Fall 2008 Week 4

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Binary Race Car ProjectProject Leader: Umit Yoruk

Team Members: Emily Thompson

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Project Overview Goal: Educate HHES students about

Binary Number System Decimal Number System Binary to Decimal Conversion Methods Decimal to Binary Conversion Methods Need for Binary Numbers

Deliverable: A racing game controlled by performing requested binary-decimal conversions.

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Decimal – Binary Conversion

Decimal = 11

Binary = ?

11510

1224

1

212

0

2

1x23 0x22 1x21 1x20+ + + = 11

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Project Specifications

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Project SpecificationsStart

Align Race Cars

Is the answer correct?

Get Answer from User

Start

Display Random Number

Was this the final lap?

Yes

Yes

No

No

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Project Specifications Cars will be controlled by a microprocessor. Random numbers will be displayed on two

separate LCD’s. Two separate keypads will be used for getting

user input. There will be two main menu options.

Binary to Decimal Decimal to Binary

There will be two difficulty levels. 4 bit conversion (Easy) 8 bit conversion (Hard)

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Project Specifications Automatic Car Alignment System will move cars to the

start position and count the number of laps. A Plexiglas casing will protect the race track. Children will not be exposed to any wiring or the

currents on the race track. All the interactions will be through the LCD’s and

keypads. Track is mounted on 4’x4’x1/2” plywood

Allows easy storage

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Educational Material Educational material will aim to teach students

Binary to Decimal Conversion Decimal to Binary Conversion Importance of Binary & Boolean Logic

Educational material may also introduce various electrical components and their functions in this particular design. Microcontroller Keypads LCD’s and their functions.

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“Rube Goldberg” Team Project Leader: Shree Frazier Team Members: Christopher Czenkusch

Jovan Rodriguez

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What is a Rube Goldberg Machine??

Machine named for the man who created it: Rube Goldberg Rube Goldberg was a Pulitzer Prize winning cartoonist, sculptor,

author, and engineer.

Purpose: To use many steps to complete a simple task.

Information and picture obtained from http://www.rube-goldberg.com/

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Project Description A different take on a Rube Goldberg Machine Steps will not have to be reset Transport a metal ball through ten consecutive

steps Purpose: to educate students about the different

types of energy Kinetic, gravitational potential, chemical, sound,

Magnetic

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Design – Zigzag Board Description: Board with 4

slanted wooden platforms for the ball to fall down

Purpose: Shows the decline in Gravitational potential energy and the gain of Kinetic energy

Design: See picture Progress: Complete

Step 1

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Magnetic Ball Lifting Step Description: A magnetic rod will lift the metallic ball through a maze. Purpose: Demonstrates an increase in gravitational potential energy as

the ball is lifted. Design: See Picture Progress: Complete

1ft.

7.5in.

2 ft.

Red square denotes a 1.5 in. by 1.5 in. square area

Step 2

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Description: 5 pipes cut to different tunings hanging down into the pipe.

Design: 3 ft. long with a 3 in. diameter PVC pipe. Two 9 in. metal rods, two 7 in. metal rods, and a 2 ft. metal rod to hang the pipes on.

Purpose: Ball rolls down and knocks into the pipes making sound energy.

Progress: Frame is complete, Wind chimes prepped

Wind Chime Pipe

3 ft.

3 in.

2 ft.

θ=4.85º

Step 3

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Inclined Plane with Cart

Description: An inclined board that will have a cart attached to it so the students can maneuver it upwards.

Purpose: To demonstrate the change from gravitational potential energy to kinetic energy.

Design: The board will be 6 in. by 2 ft. with a 1in. thickness and will be attached to a Plexiglas sheet at a 60 deg. angle.

Progress: Purchased all materials

Step 4

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Bubblegum Swirl

Description: A downward spiral from a gumball machine.

Picture taken from http://image.orientaltrading.com/

Purpose: Demonstrate centripetal force and Kinetic energy.

Design: Will be less than 12” tall and less than 3” in diameter.

Progress: Purchased and ready to be added to machine.

Step 5

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Pulley Belt Description: A vertical conveyor belt designed to bring the ball up

to the next step Purpose: To demonstrate the gain in gravitational potential energy. Design: A Belt on two cylindrical rollers and magnets attached to

carry the ball up and drop it into the next step Progress: Materials purchased.

Step 6

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Funnel tube

Description: A funnel with a tube attached that the ball will fall through and into the next stepPurpose: Shows the transition between Gravitational potential and Kinetic Energies, Also guides the ball into the next stepDesign: A flexible conduit tube attached to a funnel that the ball will fall into and guide it into the pinball shooter step.Progress: None

Step 7

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Pinball Plunger Description: The plunger from a pinball machine will

“shoot” the ball to the next step. Design: The plunger will be attached on the Plexiglas and

a ramp to guide the ball to the next step. Purpose: To demonstrate minimum and maximum spring

force and transform the potential energy of the ball to kinetic energy.

Progress: Purchase request submitted

Step 8

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Loop the Loop Description: Bent conduit that will utilize properties

of gravity to transport ball. The ball will be launched into the loop by a pin ball launcher.

Purpose: To demonstrate the balance and change between kinetic and potential energy.

Design: Conduit piping will be flexible and twisted into the shape shown below. The conduit diameter will be about a half of inch bigger than the ball.

Progress: Purchased, Ready to be put on the machine.

Step 9

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Pegboard Description: A plastic board with pegs spaced evenly throughout

the surface. Purpose: Demonstrates loss of gravitational potential energy. Design: The pegboard will be a 2 ft. tall by 3 ft. wide board with 3

in. pegs inserted into various holes. There will a Plexiglas cover over the front to prevent the ball from being lost. There will be a box made around the peg board that will have a width of 6 in.

Progress: Materials purchased

Step 10

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Goals for next semester

Finish construction of all steps Test and Troubleshoot Educational Materials

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Bicycle Powered Generator

Neeraj Annachhatre (Project Leader)

Soujanya Bulagannawar

Siddharth Prashant

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Objective The main objective of this project is to educate the students of the

Happy Hollow Elementary School about the idea of conversion of energy.

Specifically, how the conversion from mechanical energy to electrical energy can power electrical appliances.

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Description of Project The generator works by a person pedaling the bicycle, thus

rotating its rear wheel. A dynamo hub is connected to the rear wheel.

The dynamo outputs electrical voltage by converting the mechanical energy from the rear wheel into electrical energy.

This voltage is used to power electrical appliances such as a light bulb and a radio.

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Design Connect the dynamo (generator) to the rear wheel of the bike.

The dynamo’s output will generate AC current, which is to be converted to DC in order to run the light bulb and the radio.

This is achieved using a rectifier circuit, which is constructed using diodes, resistors and a capacitor.

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Design The output of the rectifier is then sent to the inputs of the

television, radio and light bulbs.

Testing of the dynamo is done using an oscilloscope. The output of the rectifier can also be tested using this.

The dynamo gave an output voltage of about 6 Volts AC.

Rectifier gave an output of about 4-5 Volts DC.

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Design

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Educational Material We created a user manual which explains how the bike generator

works as well as a brief description on conversion of energy and other educational values of the project.

The manual will also contain the project’s safety requirements.

A poster has been designed. It briefly describes educational topics such as the conversion of mechanical energy to electrical energy and curren. .

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Trebuchet Project

Team Members: Nicole Disney

Philip Jarvis

Fady Megalli

Abhilash Menon

Harsha Yejju

Project Leaders: Jacob AustinAbhishek Karmakar

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Project Overview

Goal: Educate HHES students about Velocity and speed Acceleration Force Vectors Projectile Motion

Deliverable: Trebuchet with necessary safety features for primary-school children to be able to operate under adult supervision.

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Sling

Throwing

Arm

Counterweight

Frame

Projectile

Design

Picture from: http://andypsionfan.users.btopenworld.com

Used construction plans purchased online for the HHES Trebuchet project design.

Scaled new designs by twice construction plans

Created Re-designed construction plans on CATIA to specifications

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Construction

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Construction Finished Construction of Trebuchet

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DFMEA Analysis

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Educational Materials Developed the concept of gravity as a force and the acceleration it

produces on all objects. Introduced the relationship between mass and acceleration, and

projectile motion. Closely related to HHES science curriculum and they will include

User Manuals (detailing safety instructions to supervisor/teacher) Documentary Poster Simulator

Trebuchet Simulators

Documentary

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Future Steps

Project Delivered: Spring 2008 Stored in a safe and secure area within the school Educational Materials and User Manuals delivered Begin orientation at school to teach how to operate

the Trebuchet -- Fall 2008.

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