A Measure of sound

We only had time to do the "Winding up" section of the Sound lab. We found that the more surface area of the nail the coils covered the lower the reading on the detector was. I have no Idea why this was. Maybe it was producing a of of negative energy (electrons?) and that is what was making the reading lower. I think the lowest result we got was about -1.7. I wonder why sometimes we were able to get a positive reading with the same number of coils? What did this exercise have to do with sound?

Body Power

today I did the body power lab. My resting heart rate was 72 bpm and my Maximum heart rate was 134 bpm. My working heart rate was 87 although i must admit that i wasn't working my hardest. according to my maximum heart rate i was using 12% of my maximum rate and I burned .72 calories. My exercise expenditure was 86.4 and my Daily exercise expenditure was 829.024. When ed did the horse power exercise i found that my power is 75.57516 Watts or .101 horse power.

CUrious Magnets

Today our lab was on magnets and how to make a gauss rifle. You tape very powerful magnets to a ruler about 2 1/2 inches appart. Then you place 2 meatal ball bearings after each magnet. You then place a ball at one end of the ruler. The bal is pulled towards the magnet and thenthe energy is transfered from the ball to each other ball and magnet untill it comes to the end where the last ball shoots off the end.

prep session #5

In this prep session I made my final robotix. I took several of the elements I thought worked particularly well from other peoples robots. I also incorporated saveral things that I found worked from my "reaserch". Unfortunently since almost everyone else had already built their robots and were done I felt bad about taking parts from them so I made do with what I could still find. If I had all the parts I needed I would have used the smaller cyndrilical peices to form the main part of the arm but there were barely enough of those for what I did use them for. I also wouldhave liked to have had more hand held controllers but that was ok. In the end i think I made a fairly good arm with what I had in the alloted time period fueled by my "reaserch".

prep session #4

Most of the versions of arms that I built this session didn't work because thy weren't stable enough. In this prep session I mostly focused on playing with adjusting the center of gravity. on several different occasions I was able to adjust the center of gravity enough that the arm wouldn't fall over compleatly but it was still too heavy to be picked up by two motors. I found that the part that made most of the difference was the grabber at the end, not because it was particularly heavy but because it stuck out too far. by the end of this class I had a beter adn more compleat Idea of how my arm should work.

Prep session #3

I built Two different arms today and neither of them worked. I first built an arm that bent in three places and had multiple motors at several joints. After I foun out theat theat one was two heavy I went in annother direction and built a crane which would have worked if it didn't have to be so tall. on both of these Arms the main problem was that the center of gravity was off.

Prep Session #2

I tested ut the arm I made last session and it didn't work because it was too heavy to be controlled by the hand held controllers so I tryed to connect it to the main robot, and that didn't work either. So for the rest of the session I built diffeent parts of arms to find out how I could make an arm that was long enough and light enough/strong enough at the ame time.

Preperation session #1

at our first prep session we spent most of the time coordinating and asaigning jobs. after that was all sorted out we split up into our groups and started working. me and gillian were working on the robotix section. I built an arm that had moters in several places I was unfortunently unable to test it because I ran out of time.

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Launching From the Moon

Gemma, Le'Jayah, and I did the launching from the moon lab. At first we found it difficult to move the sticks and roll, but then we measured how many tiles the thing moved. It had moved 4 tiles with one balloon on and there were 16 tiles, so we needed to use 3 balloons. We tried it and it worked. After that we tried to move the ball and wheels with three balloons but one popped and we had to get more. Unfortunately that didn't work either. I wonder if It would have worked if we would have used four or five balloons or what wold have happened if we would have only used the wheels. One of us was recording the $ amount and the other two were building and blowing up balloons. This system worked very well. I think we spent about $300,000.

Thrust structures

Here is my thrust structure

Maya and rhys's robot

we did robotix. One worked on the robot and the other worked on the arm. it worked really well.



this is a video of our robot. It was kind ouf confuseing the way the parts were structured. I would have liked to have more time to see what else we could build with the parts.

Maya's gography score for level 5

Lego Robotics

Today we did Lego robotics and had to program a robot to push two rocks to push them into a circle. We ended up only having time to make it push one into a circle and the other off to the side. Its seemed like kind of a two person task, but we still tried to included everything. One of the wheels on he robot kept popping out until we figured how to keep in in place. I wonder how much more time we would have needed to finish the program.

Map Score

Maya and Gillian's Awesome Map score
ignore first line

Motion Detector Lab

My reflecion on the motion detector lab. You could take data points from the graphs made and apply them to the equasions we laened to find the variable that is not represented. To have zero acceleration and positive velocity because if you arrent going any faster but are still moving, you arrent going faster but you are still moving, giving you a positive velocity. The position and the velocity can be the same if you move away from the motion detector and aget faster at the same rate. Some of the graphs were bouncy because they we weren't moving at a consistent speed or acceleration. if the velocity is negative it means that you are moving towards the detector and if it is positive you are moving away.

Sports On the Moon

If you were playing catch with a softball on the moon it would be different. The acceleration due to gravity is 1.6 m/s squared, which is lower than the earths acceleration due to gravity which is 9.8 m/s squared. The ball would fall more slowly because of the lack of gravity although it would go the same speed, making it go a lot farther.. You would also need to use less force to lift the ball because Acceleration due to gravity is directly related to the force/weight.

Recovery Sysems

When we did the recovery systems lab we started by talking a little about what we waned to do. Then we cut off a square of trash bag and made some renforced holes in the corners and sides and then tied on the sand bag. after a few tests and changes we found a combination that would make the parachute glide down to the ground. The parachute was circular and it went in at the edges giving it an appearance similar to a jellyfish. after we got it to work on the hairdryer we then droped it from the top of the stairs. I wonder if it would have been even better if it was bigger? or if we had started from a circle insted of a square?

Remote Repairs

This was a difficult activity to do with 3 people because it was difficult to communicate on chat 3 ways without getting confused about what we were talking about. I didn't get to participate extensivly in this activity but I was ale to atch my partners chat back and forth. The part that took the longest was actually trying to all login and start a group chat. Then we all described what our assembled peices looked like. We then decided who would go first and went fom there. one thing I would like to do next time is open multiple tabs on chat to talk to every body without being confused. We were all new to the program so I think we did well.

Bernouli's law

My example of Bernouli's law requires a birthday card. You hold the card at each end so it looks like an upside down tent. Then you turn the card towards you so it looks like a "v" then you blow in between the two sides. The two sides of the card will stick together. When you blow in between the sides it creates lower pressure, pulling the sides together.

1st vid

Hi hi!!!

Hi guys! welom to Maya's school blog! its gonna be supah cool...so ya...