Tech fair idea

This is an idea that me and Aashna really like.

How to Make a Photon Flower That Lights Up When You Water It with Lemon Juice

Have you ever made a battery out of a lemon? If you poke a copper wire into a lemon and poke a zinc-coated nail in next to it, you can measure with a voltmeter that the lemon produces between 0.5 and 1 volt. The copper is the "cathode", or positive end of the battery, the zinc is the "anode", or negative end, and the lemon juice is the "electrolyte". This instructable shows you how to make an artificial flower in which each petal of the flower is like a lemon battery cell. When the petals are connected in series and moistened with lemon juice, an LED at the center of the flower lights up. This instructable builds on the ideas of Madaeon but uses a design that doesn't require soldering.

You will need:

- Eight zinc-coated nails.

- A paper towel cut into eight 1.5" x 1.5" patches.

- Uncoated copper wire.

- A cork.

- Lemon juice.

- An LED. This project works best with an LED that has a low forward voltage and low forward current. I used a 1.6v 1mA LED. Other LEDs may work but may require more cells to light up brightly.

1. Roll a patch of paper towel around a zinc nail and wind a 12" copper wire on top of that. Leave a 4" tail of wire. Make eight of these.

2. Push the nails into the cork radially. (If you have trouble, you can drill small holes in the cork first.) Next connect the petal battery cells in series by connecting the positive (copper) end of one cell to the negative (zinc) end of the next cell. To do this, connect a copper wire tail to its neighboring nail's head. Be sure to make a good connection: wrap the wire tightly at least four times around the nail. Continue connecting tails to heads. However, don't connect the last tail! Doing so would cause a "short circuit" that could damage your battery. The last tail and nail head will be connected to the LED in the next step.

3. LEDs need to be connected with the correct polarity; that is, connected in a circuit with positive-to-positive and negative-to-negative wiring. Look carefully at your LED and you will see that one lead is longer than the other. This is the positive lead. Connect it to the positive lead of your battery, which is the last (unconnected) copper tail. Twist the positive lead of the LED onto the last tail of your battery. Be sure to intertwine the leads so that they have a good connection.

Twist a 2" length of copper wire around the LED's negative lead, and wrap the other end around the remaining unconnected nail head (which is your battery's negative connection).

4. The moment of truth! Place a drop of lemon juice on each petal's paper towel. When all of the petals are moistened, the LED should light. Yay!

If the LED doesn't light, check that all of the connections are good. Make sure that on each petal, the copper wrapped around the paper towel is not touching the copper wrapped around the nail head.

The LED should stay lit for half an hour or so until the paper towels dry out. You can light it up again simply by adding more lemon juice.

PowToon Video

https://www.powtoon.com/online-presentation/eFBGxZillza/storage-devices/?mode=movie#/

https://www.powtoon.com/online-presentation/ekxqWynG4JQ/?mode=movie#/

Peer Evaluation

1. Aashna

2. Abdullah

Self Evaluation

Storage Devices Page 1-5

Developing Ideas

In design specification 1, I used I bold cursive black text for the title and drew two different storage devices; floppy disk and thumb drive. It is very eye catching. This design specification was very rushed as I just wanted to get it finished before class.

In design specification 2, I used I colorful bubble text and a picture of USBs. Far better looking, more eye catching and more kid friendly. For this one I had much more time to look at pictures on line and create a good draft.

Cover Page Design Specification

Of the two design specifications, I choose the second design specification as it is more child friendly and colorful. I think the font of the first design specifications is not appropriate for the task and is not as colorful. 

Peer Evaluation Days 1-3

Day 1:

Yashvi, Kalyani, Avantika:

For the tech fair, they created two websites. These websites were about baking. I think the websites were very visually attracting. However, I think they could chose another topic to focus on as I thought baking was not fit for the tech fair. They also made an interesting video. I felt it was good but took a little too much inspiration from another video by BuzzFeed.

Day 2:

William:

Using a website called 'Sploder' William created and Arcade game. The game was very creative and intricate. However, the game was very easy and could have been more difficult by adding more obstacles. I was a nice game, however I don't think it'll make it into the tech fair.

Magnus and Amirezza:

Drawing inspirations from the latest Star Wars Movie, The Force Awakens, they crated the lovable droid, BB-8. As they joked, BB-8 is 8BB backwards. The used a remote controlled car inside a globe to make the body, and used magnets to to attach a cardboard head. It was inventive and was a pity that we could not see a live demonstration. It looks so cool and I would select it for the Tech Fair, but it looks incomplete.

Abdullah:
A retro styled fighting game, much like the well-known Super Smash Bros, was the topic of this conversation. Having been working on this project for almost a year, Mugen was a game featuring famous video game characters such as Pikachu and... Kirby. I hate Kirby... Using fighting styles from Mortal Combat, this game was very cool and I would sent it through to the tech fair.

Day 3:

Francesco and Daniil:

They made a remote controlled rocket. Using a computer controller, batteries, matches, etc, to launch a rocket from a distance. The clearly knew what they were talking about, however I would have liked to see the actual rocket, not just pictures.

Rishabh and Sahil: 

Rishabh and Sahil created a first person shooter game. In the game you are a lonely gunman fighting some ghostly bots. It was creative and posed a difficult challenge however I feel that the game was very simple.

Jackson and Mario:
Did not present. Refer to blogg: marioshabanadesign2015.blogspot.ae
Jackson and Mario created Tomaton. Tomatan is a robot that feeds you tomatoes when you are running. it works when you turn it on, it grabs tomatoes from its backside and brings it up to the mouth so it can be eaten. The robot was developed by Japanese ketchup and tomato company kagome.

Oliver and Sameer:
Did not present. Refer to blogg: oliverallendisign2015.blogspot.ae
Olier and Sameer created a remote control car that will carry food and drinks.This project is not complete and requires a lot of hardware.

Yasmeen and Zainab:
Did not present. Refer to blogg: zainabshehryardesign2015.blogspot.ae
By using Optical illusions, Yasmeen and Zainab created CD art.