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| Final Draft |
Showing posts with label draft. Show all posts
Showing posts with label draft. Show all posts
Sunday, November 18, 2012
Friday, November 16, 2012
Which One is Better?
Emily's Second Draft Vehicle vs. Shivani's Second Draft Vehicle
No point at the head of the car Point at the head of the car
(making a little more air resistance) (making a little less air resistance)
Very sturdy Not the best when it comes to strength... pretty weak
Weight more Weight less
Uses rubber bands for source of Uses balloon for source of force
force (making it like a slingshot)
Why this matters??? (Car 1 means Emily's Draft
Vehicle and Car 2 means Shivani's Draft Vehicle)
Since Car 2's head is not flat, it will have less air resistance than Car 1.
Car 1 is no doubt sturdier than Car 2, but does it matter if we have a sturdy
car or a vehicle just strong enough to hold a balloon?
Car 2 weighs less than Car 1 does, so Car 2 will experience less friction
Car 1 uses rubber bands while Car 2 uses a balloon as a source of power.
I am not sure if the balloon will make the car go in a straight or semi-straight
direction and I do not want to take a chance. For Car 1, Emily and I could
aim it so that when we let the rubber bands go, the car will move in a straight
line. Making the vehicle go in a straight-as-possible line is not only because
our requirements for this project is to keep the vehicle in a two tile width, but
because the shortest distance is a straight line. If our car goes in a curve, it will
lose the power from the rubber bands/balloon and may not end up to meet the
required distance.
No point at the head of the car Point at the head of the car
(making a little more air resistance) (making a little less air resistance)
Very sturdy Not the best when it comes to strength... pretty weak
Weight more Weight less
Uses rubber bands for source of Uses balloon for source of force
force (making it like a slingshot)
Why this matters??? (Car 1 means Emily's Draft
Vehicle and Car 2 means Shivani's Draft Vehicle)
Since Car 2's head is not flat, it will have less air resistance than Car 1.
Car 1 is no doubt sturdier than Car 2, but does it matter if we have a sturdy
car or a vehicle just strong enough to hold a balloon?
Car 2 weighs less than Car 1 does, so Car 2 will experience less friction
Car 1 uses rubber bands while Car 2 uses a balloon as a source of power.
I am not sure if the balloon will make the car go in a straight or semi-straight
direction and I do not want to take a chance. For Car 1, Emily and I could
aim it so that when we let the rubber bands go, the car will move in a straight
line. Making the vehicle go in a straight-as-possible line is not only because
our requirements for this project is to keep the vehicle in a two tile width, but
because the shortest distance is a straight line. If our car goes in a curve, it will
lose the power from the rubber bands/balloon and may not end up to meet the
required distance.
Sunday, November 11, 2012
Saturday, November 10, 2012
Day 1: Gathering Our Ideas
The two of us met up with each other to discuss and show off our ideas and drafts. There are requirements of 3 prototypes, so we spend the rest of the time creating new, updated drafts. Because none of us were able to finish all three, homework was to brainstorm until the next meeting of more prototypes. At that time, future ideas will be discussed and models/prototypes will be created; vehicles will hopefully be started on by then as well.
Discussed Ideas:
Types of Wheels:
- CDs
- Cup lids (the plastic lids of soda cups)
- Beads
- Crumpled paper
- Tape rolls
- Bottle caps
- Car wheels (legos)
Made of?
- toothpicks
- paper
- wood
- legos
- straws
- containers
- glass.... ?
Number of Wheels?
- one
- two
- three
- four
- six
- eight
Source of Power?
- balloons
- springs
- rubber bands
- water bottles (pressure form air inside)
- air
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