Test 1

Here is the FINAL copy of my song...I made it slower to change the wavelengths...and I made the pitch higher and lower on my other copy.  The slow parts are easy to hear, but the high and low parts I wrote on my other blog post.  Here is a link to my song!!

http://www.aviary.com/online/audio-editor?fguid=20892384-540f-11e0-8f7f-1231390ec091#

Song Edits

Sleepy Head.egg on Aviary.

For our science project we had to find five points of frequency and five wavelengths in a song and edit them/change them so that they sounded different.  I chose the song Sleepy Head by Passion Pit.  For mine, the wavelengths were really small, so I made the wavelengths that were all on the same note so that you could tell that it was changed in the song more easily.  Below are the times that I changed the wavelengths.

8-9 seconds: pitch lower
13-14 seconds: pitch lower
18-19 seconds: pitch lower
21.5-23.5: pitch lower
26-28: pitch lower

It doesn't sound very good, but the pitches are changed!  

Parachute Launch

On Friday, we attempted to launch the weather balloon with the camera and the Flip camera.  Sadly, the weather balloon had tons of holes in it, so we couldn't send up the container.  We had to just sent up our parachute, Flying Fergie, all by itself.  Because there was no GPS tracker, we probably won't ever see it again, but it was fun to  make it and we all got a great sense of accomplishment from overcoming all of our last minute problems, and making a functioning parachute!!  I think that the plan from now on is to launch one container and/or parachute each Friday with the iPhone and Flip and then go and get it for the next test run the following Friday.  I think this sounds like a very good plan and I am glad that this whole project isn't over yet!!!  I will let you know how it goes on these Fridays:)

Parachute

Hey guys!! So, our material finally came in and it looks very good and VERY PINK:) Over the past week when Gabby was gone, I did spill hole research (before the material came in.) Then, I cut the spill hole for the actual parachute.  I tried to do the math, but it did not work AT ALL, so I just made it the size of a quarter, so we can make it bigger if we need to.  Then, I made a test parachute that was really small.  I attached a lot of orange string to the sides of the parachute and then taped the other ends to a tennis ball.  At first, I had only four strings, but it didn't work because the sides that weren't attached to string flapped up (so it looked flat.) I ended up attaching four more strings (8 in all.)  We went to the bleachers and tested it and it worked really well!!! It worked really well and it deployed very quickly.  Since it went so well, we think that that is going to be a smaller version of the actual thing.  We will have it done by Monday or Tuesday of next week and then have a couple of days to test!  Everything is going so well with the parachute and we are all very excited!!!

Spill Hole Research

Hey guys! So, since Gabby is gone and our material isn't in yet, I was doing research today about the spill hole and its size.  Every time we did a test run, the spill hole seemed to be too big.

We aren't sure whether or not to even use a spill hole...because we might just scrunch the top of it so that there is more air resistance (because it isn't so smooth.)

I was doing research (on the website below) and it said that the spill hole was about 20% the diameter of the actual canopy.  It is only about 4% of the area, so very very small.

http://www.fruitychutes.com/how_to_make_a_parachute.htm

February 16th ~ Video

Hey guys!  Here is a link to the video of us testing the parachute model.  It wouldn't load into iMovie, so it is about seven minutes, so definitely fast forward through some parts:) We are hoping our material comes in soon so we can start building the actual thing!

Parachute Testing

February 16

Hey everybody!  Today the people in 1st period who are in our group (Maybry, Elizabeth, and Gray) made a parachute and attached it to Ashley's group's container.  They tested it this morning, and then we tested it again.  It worked pretty well, and tells us a lot about how to make the actual one.  The only thing that was that the spill hole was a little bit too big.  If it was smaller, it would have slowed down even more than it already did.  We will upload the video tomorrow during class...after we edit it because it is a little bit toooo long:) We figured out that the spill hole's size is extremely important to the parachute.

We will keep you updated!