Me and the World- The Energy Crisis #2

There is a new energy source out there. It is completely natural. Algae! Like us algae can gain weight. This fat can be harvested into a bio-fuel. This bio-fuel would be much better than using corn. The problem is that this fat is not exactly easy to get to. Algae have a strong protective skin that keeps all of their organs and excess weight safe. That is why some scientist made devices that make the algae give up their fat.
Screen shot 2011-05-18 at 9.53.39 AM
Screen shot 2011-05-18 at 9.53.39 AM
​This device would send out electro-magnetic signals that caused the algae to give up their weight. Once they gave it up it would sink to the bottom of the barrel and be collected. This device is not actually very economical. If we use this device to extract fat from algae then it would cost $8 to the gallon. Another method is to let the sun do the job and when the algae die. Their fat will sink to the bottom of the tank and then it can be extracted.
fellsmere-3-1
fellsmere-3-1
​Carbon-dioxide is not going to be part of this situation When using the "neon-barrels", the algae can use carbon-dioxide to not only clean the air, but gain more fat in the process and thus more energy. the open fields make energy more affordable. Only $4 to the gallon. Maybe advances in technology will allow us to create more fat off the algae and make it affordable.

Something I Heard

I was talking to this 10th grader about college (she didn't want to go) and the conversation soon turned away from that topic and into our life stories. She said something that struck a cord with me. I notice that she is a very outspoken, happy individual and she told me that that's because "she feels like she has to be happy for every person that she knows who is sad." That a huge burden. But I guess not to her. 

Finally

​I picked up my prom dress and it's finally in my room just chilling there. I'm really tempted to wear it now but i don't want to break it or anything so i'm gonna leave it be. I can walk in my prom shoes like no tomorrow and if the word is suppose to end the next day afterwards atleast i got this far.I can't wait to dance the night away. dancing is what i love to do. I could dance for hours. rhythm or no rhythm i love to dance also.. 

KITTENS!!

GEDC0276
GEDC0276

Musical Instrument Blog #1: Natalie Sanchez_Earth Stream

Natalie Sanchez
5/19/11
Blog #1

I am planning on building a guitar for my physics project. A guitar is played by plucking or strumming its strings. In order to change the note of a guitar, you must place your fingers on different strings of different frets on the fret board of the guitar. A (acoustic) guitar's body is shaped like a very wide "8" with a hole in the middle of it. I think that the a guitar creates sound because the sound waves that are produced when you pluck or strum its strings bounce into its sound hole and then re-bounce  out of the guitar to produce external sound. The guitar changes notes when you hold certain strings at certain points because the strings becomes more tense and produces a higher note than it would if you just play the string on its own. Maybe this also has to do with sound in that the sound wave is weaker than sound wave of a single chord so it sounds different when it rebounds out of the guitar. It could also just be that the string with pressure on the fret has a higher note than the string without pressure on the fret, and therefore just sounds the way that it does normally, only louder because of the sound hole. I like to connect sounds waves to ocean waves because they move in a very similar manner. The wave travels straight through said path and does not stop. The same thing happens with a sound wave. The wave is caused by an initial disturbance (as explained the in the beginning of the today's experiment) and then continues to travel throughout the path is started on. The sound waves in this case are created by the strings, go into the sound hole of the guitar, and then bounce back out of the guitar once they hit the back board of the body of the guitar, much like ocean waves do when they hit rocks; they bounce bounce back into the ocean. 
Links to guitar picture:
http://stringsattached.info/?p=463
link to guitar player:
http://www.youtube.com/watch?v=Lcmb4RplClQ

5/26/11:
Blog #2
1. How is sound produced by this instrument (now that you know more about sound, please try to refer specifically to the energy transfer and vibrations)?
My instrument (guitar) produces sound through its strings. The thiner the string, the higher pitch it will have, and the more the string is stretched, the higher its pitch. The thicker the string, the lower its pitch and the less it is stretched the lower its pitch. When it vibrates (the strings), it throws sound waves through the sound hole, which hit the back of the guitar, and then travel back out because it has a set boundary. 

2. Based on your understanding, how are you changing the pitch? What physical characteristics are important in this instrument?
The pitch changes according how thin/stretched the string is. The thinner/more stretched the string is, the higher the pitch and visa versa. The most important physical characteristics on the guitar is the sound hole, and the strings. 

3. What materials will you actually be using for your instrument and why? How will you play your instrument? What is your plan for constructing the instrument? 
I will be using a cigar box, wood, a wood cutter, cote hangers, guitar strings, smaller planks of wood, and tunners. These objects will serve as my body, strings, sound hole, and tunner for my guitar. I already know how to play guitar. I will play the guitar by strumming/plucking it according to the guitar chords that I have printed out. I am planning to buy the parts that I have mentioned and build the instrument at home. 

4. What outstanding questions do you still have?
How does what we learn in class have to do with a guitar?
Am I right about how sound travels from a guitar? please correct me if I am wrong. 
How can I measure the sound weaves coming out of my guitar?
new guitar
new guitar

Musical Instrument Blog #1

I watched THIS movie to observe my instrument: the Xylophone.

The xylophone is played by hitting wooden "keys" with wooden mallets (or metal keys and metal mallets). The sound comes from the vibrations the mallet makes on the key. The note is changed when the player hits different sized keys. The vibrations of the xylophone also allow for two notes to be played at the same time. The xylophone itself is a base with the flat, rectangular keys going from biggest to smallest. The biggest keys produce deeper notes than the higher ones. This set up makes me wonder why it is that a small key made from the same material and in the same shape, can create a different note. This is, also, similar in other instruments like the pan pipes. So, possibly, with less space for the vibrations to occur, the higher the frequency of the sound waves? As I watched the movie of xylophone players, I realized that the reason I was hearing them play was because sound waves were hitting my ear. I just assumed the keys were creating them. I also notice that the sound oscillates: it starts with a strong clear note, and fades to silence until it's hit again.   

Moving on

There comes a time when you realize that pettiness doesn't matter, that sometimes your pride can be sacrificed, even if others may judge you for it and that although anger and rage feel good for an instant, they aren't productive in the long-run.  

This moment is called maturity; unfortunately, it hasn't hit you yet. 

Depression and Suicide SLATE 2

In my studies I have found these few facts about teen suicide​ and my opinion on them-

·      May be triggered by a horrible event: Death of a loved one, break-up, failure at something like school. (This may make the person suffering from this cause suicide because they want to forget all of the pain or to want to be with the one they lost)

·      In teens, it is difficult to tell if they suffer from depression because they symptoms are close to the way normal teens are.(since no one can help them and they may suffering from the loneliness)

·      Signs of depression: doing worst in school, not doing well with friends and family, substance abuse, oversleeping, change in eating habits, breaking laws and obsession with death. (These are things to look out for so that you can help out the people who need it)

Mini Project

Jugo de Passion Frutas
Kyler
Es muy sabrosa, y dulce.

The staff was amazing, professional and seemed like they new everything about what they were doing, and absolutely loved their jobs.

My favorite dish was jugo e mango, I loved it, I don't even like milk, but it was amazing.
jugo-de-mango-006
jugo-de-mango-006