I've got this message from a friend..

"A fall from the fifth floor hurts as much as a fall from the tenth floor.

lesson? give it all.. it will hurt just the same.."


Well, I disagree.. According to the laws of physics, specifically about the free-fall motion, this is definitely not true.. y = y* + v*t - 1/2 gt^2 Consider y* as 15 meters from the ground to the fifth floor and 30 meters for the tenth floor. If this is a free fall motion, v* is equal to zero. We will consider the final velocity, which is v from v = v* - gt. Computing for the total time of travel, you'll set y to zero (to reach the ground). Obviously, the time of travel of the one from the tenth floor is longer than the total time of travel of the one from the fifth floor. Using v = - gt (v* = 0), the final velocity of the one from the tenth floor is greater than the one from the fifth floor. (Considering air drag, the values of velocities may decrease but still, the final velocity of the one from the tenth floor is greater than the one from the fifth floor.) Then considering Newton's third law of motion, the one with greater velocity will experience greater impact as it reach the ground. Greater distance from the ground = greater final velocity = greater reaction force the body will experience as it reach the ground. Therefore, a man that fell from the fifth floor has a greater chance of surviving than the man who fell from the tenth.

Lesson? Take time to know what will be the outcome of your actions. If you already know that you'll be hurt, stop and think for a while before going up another floor. Staying (going higher and higher) will just cause greater damage to yourself. Don't give your all, leave something for yourself. Be cautious as early as possible or you'll end up like the man that fell from the tenth floor. You may survive, but the fall will give you much impairment to the extent that you can't live normally anymore.

--Neory T. Mangaliman (2nd Year Engineering Student)


see? may connection ang physics sa love life! hahaha!

==I can't remember when I wrote this, but in Facebook, it was published on October 24, 2009.. I was taking Physics 2 that time under Sir Hermie Del Pilar.==

Girls, especially teens, are very much conscious on the way they walk, talk and on how do they look. Fashion for them is very essential. For most of the girls out there, fashion nowadays is already a need. Fashion is very important for a girl or a lady because the way one looks reflects her personality. Being not fashionable can affect one’s sociability and relatedness to others; also people can mark her as “out”.

Many boutiques selling fashionable clothes and accessories are scattered all over the country. You can easily find one near you. But most of the products they are selling are not that affordable. For example, a simple tee costs 250 to 1250 pesos depending on the brand name or where was it manufactured (here or abroad). Another example is a bracelet; it can range from 50 to 800 pesos depending on the materials used or the mark up price of the retailer.

We all know that money can’t be easily earned or found so we should budget it wisely. But limited money should not hinder a girl in being very pretty and very fashionable. This feasibility study will focus about how Arashii Neory will help girls to find fashion very beautiful and gorgeous without spending so much money. We will find out how to bring out the best on all girls out there without making their wallets suffer.


*I wrote this as my introduction of my feasibility study as a requirement for my TLE class. Since I was a child, I dreamt of having a fashion boutique of my own someday. I wrote this article on August 27, 2007. Now, it's Sept. 16, 2010, and I still don't have a boutique. Haha. Well, I know it's still early. I'm only 18 and I still don't have enough funds to create a fashion boutique. I'm still hoping that someday, it will come true, and... it will be a hit! =)

In the city of Quarks, there was this S4 or Sound Four who knew all the things about sound very well. S4 was consisted of Asi Domyouji, Lei Hanazawa, Mei Zuo Akira and Xi Men Soujiroh. They were popular not only in Quarks but also all over Asia. They were studying in Ying De Academy of Eitoku in Quarks. They were also the school’s heartthrob and the sons of the four main owners of the Academy.

One day, when the S4 was walking in the parking lot of Ying De, someone bumped Asi. The girl who bumped him was San Chai Makino. Asi shouted at San Chai with loudness in his voice. San Chai hates being treated that way so she shouted back at Asi “Who are you to shout at me? You’re such an arrogant dog!” Then she ran away from the S4. Asi, who’s very angry that time, shouted again “Hey you! How dare you call me a dog? Come back and I’ll show you what a dog really looks like!” Lei approached Asi, tapped his shoulders and said “I think she did not hear your last words. Remember the Doppler Effect.”

San Chai stopped running when she reached the rooftop. She shouted at the top of her lungs “You S4! You all look like a dog! I promise, I will never like you!” Then she heard her voice’s echo.

The next day, San Chai went to school early in the morning. She went to the locker area to get her things. And when she opened it, snakes started coming out! She screamed with a very high pitch of her voice. But her voice just exhibited reflection because the locker area was a closed place. When the snakes were gone, San Chai looked closely to the card attached inside her locker. It was a red card from the S4! She heard the sound of her heart beat faster. She knew what the card meant.

When she was heading home, she remembered that she has to buy a book for her project. So she went to the nearest mall and used the elevator to go up to the 5th floor of the mall. The elevator stopped when it reached the 3rd floor. The doors opened and there was Asi standing in front of San Chai. She felt nervous. Asi went into the elevator. The doors closed and suddenly the lights went off and the elevator stopped moving. They were both shocked. The two of them were not moving. The San Chai shouted for help. Asi told her “Stop shouting. There are only little slits in this elevator. Your voice can pass through the slits because of diffraction but I think the sound diffracted is very weak. It can be hardly heard by the people outside.” She answered back, “Alright, I’ll stop. But can you please help me think of a way to get us out of here? I thought you are intelligent. You know acoustics, frequency, interference and all that stuff.” “Acoustics is the study of the production and propagation of sound waves. Frequency is the number of cycles per second. Interference is the meeting of two waves. Ask me all about sounds and I can answer it. But I am not an expert in the art of escaping.”

They both sat down side by side. San Chai felt that Asi is hot. She thought he has a fever so he asked him “Are you alright? Aren’t you feeling well? You’re hot.” Asi replied “I am alright, I’m just…” and he fell down to San Chai’s lap. San Chai got her hanky and wet it with water. She then put it into Asi’s forehead. Hours passed and San Chai was still awake. Suddenly, Asi woke up and San Chai asked him “Are you feeling better now?” “Yeah, I’m feeling okay now. Thank you.” He replied and he tried to sat up. San Chai pushed him back to her lap and said “Just rest. It’s alright.” Then she got her harmonica and played it. Asi told himself that the music was so beautiful. “You’re music is very great. Do you know that resonance is the common cause of sound production in musical instruments?” Asi asked. San Chai just shook her head because she already forgot about it.

The next morning, they woke up when the elevator started moving downwards. When it reached the ground floor, they immediately run to get outside the mall. They walked side by side, and when they reached the main road, San Chai said with a blush on her face “I’m going home now.” Asi replied “Take care.” Then they walked on the opposite directions.

Asi stopped and shouted “San Chai! Thank you for taking care of me last night!” San Chai shouted back “I can’t clearly hear you! Remember the refraction of sound?” Asi ran towards her and said “I said thank you for taking care of me last night.” He kissed San Chai on her cheek and headed home. From then on, they became close friends and later on fell in love with each other.

*This story may sound ridiculous. Haha! As I was reading it, I was like, "Did I really write this?" Then I remembered Sir Bondoy asking us to write a story involving sounds and other scientific terms related about sounds, so all throughout the story, they were talking about sounds. I also did this in Physics class under the same topic, sound waves.

1 Corinthians 14:7-11
7And even things without life giving sound, whether pipe or harp, except they give a distinction in the sounds, how shall it be known what is piped or harped? 8For if the trumpet gives an uncertain sound, who shall prepare to the battle? 9So likewise ye, except ye utter by the tongue, words easy to be understood, how shall it be known what is spoken? For ye shall speak into the air. 10There are, it may be, so many kinds of voices in the world, and none of them is without signification.11Therefore if I know not the meaning of the voice, I shall be unto him that speaks a barbarian, and he that speaks shall be a barbarian unto me.


I agree with these verses. All that we can hear are sounds but do we ever wonder why a sound differs from another sound? The sounds may vary because of their different properties. These properties are pitch, loudness and timbre. Two sounds may have the same loudness but if they have different pitch or timbre, they are not the same. That is why the distinction of sound is very important. Without these distinctions, we can’t know what or who produced the sound we have heard. Just like the example from the verses, if sounds don’t have distinctions, how can we know if it is the trumpet that denotes war? How can we know if it is a fire alarm, or an ambulance coming or just the ticking of the clock?

On verse nine, you can see that air was the only one mentioned where we can communicate. Scientifically, it’s not only in air where sound can be transmitted or passed. Solids and liquids may also be the medium where sounds can pass. Actually, the denser the material is, the better the transmission of sound. But it made me think, why do people always communicate through air? It is rare to see two girls chatting using a wood as their medium to communicate, Isn’t it funny if you will see man talking with his mouth very close to the wall because the one he is talking to is on the other side of the wall? Honestly, if I’ll see one, I will laugh.

I strongly agree that all sounds are significant because God created all things with significance. When we talk, every word we utter has a meaning. The dog’s bark, the chirping of birds, the thunder, the sound of the waves on the sea, all these have their own meaning and significance.

Sounds are very essential for us, humans, to communicate with other people. We talk and we understand each other. Sounds are very important not only to us, but also on the communication of animals. Not all animals do talk, but they do communicate with the sounds that they produce. Observe your surroundings. You can hear a dog barking, and after a few barks, other dogs near it will also bark. This just proves that there is something in the sounds that they produce where they can communicate or “talk” to other animals. May be we can’t understand those sounds, but we still know that it do have a meaning. But if we don’t know that sounds exist, can we still use it as a medium of communication? Good thing we learned about sound and more about it because of the scientists that discovered it. We should value sounds like how we value other things. Sounds are also God’s gift to us, without it, I think our life will be incomplete.

*This one's a reaction paper about the verse. We had this in physics class. I was under Sir Bondoy, he was also our class adviser. Our topic then was sound waves.

Ito ang aking isinalaysay na talumpati noong Filipino 1. Nagandahan ako sa talumpating ito na isinulat ni Mia Lavetoria.


Naliligiran ng kaguluhan; mga taong walang pakialam at makasarili; nakalahad na mga palad sa lansangan at mga tirahang pinagtagpi-tagpi lamang. Ito ang kasalukuyang larawan ng bayang dating tinaguriang Perlas ng Silangan.

Nakalipas na ang ilang dekada ngunit hanggang sa ngayon ay hindi pa rin nalalagot ang tanikala ng kahirapang kinalulugmukan ni Juan dela Cruz. Ito ang puno’t dulo ng lahat ng pangyayaring nararanasan sa kasalukuyan ng ating bansa. Kung bakit sa bawat sulok ng dilim nagaganap ang mga krimen. Kung bakit nawawala ang pagmamahal sa isa’t isa. Ang siyang dahilan kung bakit patuloy tayong sinasalubong ng mga maliliit at maruruming paang nakalahad ang mga palad na sana’y ang hawak ay mga panulat at papel. Kung bakit mahigit dalawang milyong pamilya ang nakararanas ng kagutuman at malaking bahagi ng sangkatauhan ay natutulog nang gutom sa gabi. Kahirapang hindi nagpatuntong sa paaralan sa halos sampung milyong kabataan.

Subalit hindi lamang ito ang sanhi. Hindi lamang ang tanikalang ito ng kahirapan ang nagpapahirap kay Juan dela Cruz. Kasama sa sapot na bumabalot sa ating bayan sa pag-unlad nito, ang pamahalaang bingi sa mga hinaing ng mga tao, bulag sa mga batang naglipana sa lansangan at manhid sa init at lamig na nadarama ng mga Pilipinong walang tirahan. Hindi ba’t silang mga nasa likod ng lingkurang bayan ang nangako ng kariwasaan sa ating bayan? Sa matatamis nilang dila narinig natin ang milyun-milyong hanapbuhay, pabahay at iba pang gabundok na mga proyekto. Isa ang pamahalaan kung bakit kinakailangang may mga taong natutulog sa lansangan kung mayroon namang mga lupain na maaaring pagtayuan ng kanilang mga tahanan at nang hindi nila pilit na isinisiksik ang kanilang mga sarili sa riles ng tren at tabi ng ilog.

Dapat na tayong mabahala. Sapagkat sa bawat isang kabataang tumitigil sa pag-aaral, humihinto rin sa pag-inog ang mundo. Ang mga pangarap at kagalingan ng mga kabataang ito na maaaring mga susunod na pinuno ng ating bayan ay nasasayang.

May pag-asa pa. Sapagkat ako’y naniniwala na sa likod ng mga kalawang ay minsa’y isang kumikinang na ginto. Ang ating bayan ay dati ng tinaguriang Perlas ng Silangan at maaari pa nating maibalik ito na tulad ng isang kumikinang na ginto kung aalisin natin ang mga kalawang na nakapalibot dito.

Ako, kami, tayo, bilang mga kabataang Pilipino ang lalagot sa tanikalang nagpapahirap sa ating Inang Bayan at siya ring tutulong upang alisin ang mga sapot at kalawang na pumipigil sa ating bayan sa pag-unlad. Sapagkat ako’y naniniwala, ang kulimlim na ulap ay lagi nang nahahawi upang bigyang laya ang haring araw sa muling pagsikat nito.