Saturday 31 December 2016

My official website

Meanwhile, here is my official website, http://science.utm.my/norainhusein/

It will be update from time to time.

Psssttt... I enjoy reading my students writing. They inspires me in many ways. How? I will share more next time.

For now, HAPPY NEW YEAR!!!


Wednesday 30 November 2016

DETECTIVE CONAN : THE LEGENDARY OF A MYSTERIOUS BIRD



                  This movies is about The Legendary of a Mysterious Bird. It takes place 100 days before Kudo Shinichi became Edogawa Conan. Kudo Shinichi, a high school detective, arrives in Jugoya Town with Mouri Ran and others. In this town, a legend exists. It claiming that a gigantic bull-headed shrike attacks the towns people and kills them. The town was about to hold a festival in 3 days to put the giant bird's spirit to rest. While being led on a tour of the bull-headed shrike shrine by Sonoko's parent's friend, Mr. Wakura, a crime related to the legend occurs. Starting with Kosaka and then member of the Wakura family are slowly murdered in the same way.

                   This movies have a concept of physic. It is pressure. In this movie, the hydraulic pump was filled by the air. When the outward of large piston is filled by the water and the door of the piston is opened, the direction of air will flowed opposite and it will lifted up someone or something on it. It means the large piston have high pressure and the small piston have small pressure. That is why when someone or something have low pressure, it can lift up or go away when the pressure is high.


                 

Titanic dan fizik

Filem titanic sememangnya terkenal bagi yang menggemari filem cinta.Tetapi sebenarnya terdapat unsur fizik dalam filem tersebut.Antaranya ialah kapal itu sendiri telah menggunakan konsep apungan untuk terapung di lautan.Tanpa menggunakan konsep itu,mustahil kapal tersebut akan terapung dan belayar di lautan.Selain itu,kapal tersebut menggunakan enjin untuk menggerakan kapal.Sekiranya kapal tersebut menggunakan angin,ada kemungkinan yang kapal itu sampai ke destinasi agak lewat kalau nak dibandingkan dengan kuasa enjin.Konsep fizik yang seterusnya ialah inertia yang berlaku semasa kapten kapal cuba menggelak daripada melanggar bongkah ais.Semasa situasi tersebut,para penumpang terumbang-ambing sehinggakan ada yang terjatuh kerana momentum yang kuat.Akhir sekali,konsep fizik yang digunakan ialah semasa kapal tersebut terbelah dua.Ini berlaku kerana daya tarikan graviti yang dikenakan ditambah pula dengan berat kapal tersebut yang membolehkan kapal tersebut terbelah dua.

Tuesday 29 November 2016

Coming Soon ( 2008 )



       Coming Soon ( 2008 ) is a movie about a young projectionist named Shane, who works at a cinema in Thailand and had promised to bootleg an upcoming Thai horror movie that has not been released yet to his friend , Chen . The horror film that he were to let his friend , Chen illegally record is about a crazy village woman who was hanged after she had been discovered for abducting and blinding children violently. After falling asleep during the screening in which his friend , Chen was recording , he woke up to find that his friend Chen had disappeared and left his DV-cam behind. He recovers Chen's DV-cam and sees a footage of Chen cowering in fright at something he had seen . Shane then becomes extra curious about what had happened and decides to run the horror movie for himself at the theatre again and was shocked to see Chen inside the movie laying dead with his eyes gouged out . The next day , Shane begins to encounter unusual paranormal events as he starts to encounter  Shomba who is the evil spirit from the movie in several places . Eventually, he finds out the terrible secret behind the haunted movie in which the actor who acts as Shomba in the movie was really killed during the shooting of the hanging scene . Shane also finds out that all individuals who was involved in the making of the movie was also dead . Shane then starts to think deeply and comes out with an idea in which why Shomba haunts the viewers of this movie . This is for her revenge on why would they publish the movie despite of her being dead . Shomba then continues hunting for Shane till the point where Shane ends up being dead similarly as his friend Chen . The movie is then released and all viewers who viewed Shomba's death will experience the same fate as Shane . 

     One of the physics concept that i see present in this movie is when Shomba was hanged to her death . The hanging of Shomba obeys Newton's First Law in which all the forces acted upon Shomba are balanced . I can say that the hanging of Shomba was a success because the upward force which is the tension of the rope which connects her neck with the ceiling is equal to the downward force which is her weight ( W=mg ) . If the upward and downward force is equal , then Shomba is said to be in equilibrium which is at a certain height from the ground . Thus , the net force towards Shomba is zero and the acceleration is also zero .Objects at equilibrium must have an acceleration of zero . However , zero acceleration does not mean the object is at rest , it may also mean that the object is moving at a constant speed and direction . But for this case , we take it as the object is at rest as Shomba hangs perfectly at a certain place . 

     In conclusion , i can say that this movie applies and the physics concept really well without disobeying it . I must say that there are a lot more physics concept in this movie , some may be simple and some may be a lot more complex than the hanging of Shomba . But in my opinion , i only see and understand this concept the most . Thank you for reading 

 

      


     ICE PRINCESS 

       I am delighted to share my watching movie experience  which I found it was interesting yet inspiring. This movie inspire me in the journey to reach dream .Ice Princess was the movie that had steel my heart and force my eye to  keep on  watching it.
       Ice Princess movie start with Casey Carlyle, a very smart and talented science student ,plans to pursue a scholarship to Harvard University. Casey must present a personal summer project about physics for the scholarship. While she was watching a figure skating competition with her friend , Ann she realizes that ice skating , would make a perfect project.
      She improve her skating by applying physics and watching it from other skaters.Later she becomes proficient and skips two levels to become a junior skater. She helps a junior skater named Gen and other friends improving their skating. Torn between her Harvard dream and her growing love of skating, Casey has difficulty juggling schoolwork, skating and a part-time job. Casey’s mother attempts to prevent Casey from skating due to her declining academic performance.At the same time, a tension occurs between Casey’s coach and Gen’s mother.
     The climax of the story was when during a competition ,Casey’s coach, Tina Harwood sees that Casey may outrank Gen,and she attempts to sabotage Casey’s performance by switching her skates.I would like to suggest you watch this movie because I may not going to proceed writing the synopsis and my intention here is to share my discoveries from the movie.To be honest, the movie had strengthen my physic knowledge on the law of conservation of angular momentum.
1)How many of us understand the properties of physics that allow skaters to glide over the ice, jump, and spin?
2)What is the reason that skaters can turn at full speed and not fly over the rink’s barrier when they come to the end of the rink?
This can easily be done by the skater if they have the ability to control their core body ,so they instinctive can balance over their skate.
“In an isolated system, with no external forces, the law of conservation of momentum states that the momentum is conserved. The law of conservation of angular momentum states that the angular momentum in an isolated system, with no external torques, will be conserved.”
First,we measures the amount of spinning motion using angular momentum.
  • The higher the amount of angular momentum of a spinning object, the faster it is spinning.
  • The amount of mass and the distance of the mass from the axis of rotation influence the number of rotations per second or known as the rate of speed.
  • The length of time a skater can hold a spin depends on the skater’s ability to centre the spin.

If they lose their centre of balance, the spin will start to wobble and her centre will shift.
Then, we use the moment of inertia as the rotational analogy to mass.
  • The moment of inertia is calculated by the mass and the distance of the mass is from the axis of rotation.
  • By increasing the mass or the distance of the mass is from the rotational axis ,the moment of inertia also increases.

Next, figure skater change her moment of inertia by controlling how close her centre of mass is to the axis of rotation.
  • By extending the arms and one leg, the figure skater can increase the moment of inertia in a spin.In contrast, by pulling the arms and legs to body, a decrease in the moment of inertia happens.
  • To slow a spin, a skater need to extend both arms away from the core body.The moment  of inertia increases, and so the angular velocity correspondingly decreases.

 Lastly, in performing a jump,
  • A skater make an adjustment in the distance of the arms from the center of the body axis, so the skater can fine the tune of the moment of inertia and the angular velocity.This principle allows the figure skater to theoretically adjust the number of turns that will be precisely made in the air prior to landing the jump

      What value I get  from this movie is we must always practice in order to get a perfect result.In order to reach our goals , we need to keep on trying even life is getting harder and tougher. Always bear in mind that nothing is really over until the moment we stop trying. We need to have a positive mind and see the problems as the way to improve ourselves and later become the best of all, just what Thomas Edition says, “I have not failed. I’ve just found 10,000 ways that won’t work”.
Thank you for your time reading my posts.
Written by,
Khaliesa amira mohd Nadzir

Monday 28 November 2016

Physics Concept In Movie

TRACER



                    Tracer is an action movie from America and the main actor is Taylor Lautner as Sam. So, from the movie i can catch up physics concept that had been used by the actors. 

                    First, in this movie, there are many of parkour activity. Parkour is defined as the activity or sports of moving rapidly through an area, which typically in an urban environment, negotiating obstacles by running, jumping, and climbing.
                  
                    So, my point of view about physics in this movie are most related to parkour activity by Sam who are zero knowledge about parkour and only know riding his bicycle as a bike messenger in New York. He started to feel excitement in parkour when a woman, Marie Avgeropoulus as Nikki suddenly lands on him when they bumped each other. So, Nikki suddenly walk, jump and run throughout the obstacles and climb from one floor to another floor and missing. So, Sam eager to find Nikki and at last he saw Nikki and her gang were practicing parkour. So, Sam asked to joined, but his willing to joined had been rejected.

                    So, Sam started learn Parkour. First thing he learned was balancing of his body start from lower brick to the higher brick. So, this is the first physics concept. It is easy to balance ourself at a lower brick, but when at a point of higher brick, hard to us including Nikki to balance his body. This is due to the center of gravity. If the center of gravity is low, the body more stable while if the center of gravity is high, the body balance is low and the body less stable.

                   Then, Sam learned jumping. So before he jumped, he bend his legs and jump. So, this is a second physics concept. While Sam bended his legs, actually he experienced potential energy at his legs to make sure he can jump as high as he want. The more he bended his legs, the higher potential energy.
                   
                   Next, the extreme part that Sam learned in parkour were running and jumping from one building to another building. So, before he jumped to another building, he takes a few step backwards to manage the timed before he jump to another side of building. So, this is to measure the time before the flight time. This is because when Sam jumped from building to another building, he experienced projectile motion. Then, when he succeed to jumped to another building, Sam will rolled his body to reduce the impact from the jumping and avoid injuries. So, this is a physics concept where when we increase the time of collision, the impact will be decrease.

               So, at last Sam be the one of the team with Nikki due to his succeed in learned parkour. Then, the other gang teached him more tricks while do parkour, the safety, and the harm things can happen while do a parkour. 


“The Universe is not only queerer than we suppose, but queerer than we can suppose.” 
- J.B.S  Haldane -

                    

Physics Concepts in Movie

GRAVITY

            Every year there always many genre of movie coming into the cinema. Most of the  movie coming into the cinema has a good quality of movie but, some have a bad quality of movie. The purpose that I write in this blog is I want to share one of my favourite movie that I watch many times which is Gravity in 2013. The actor of this movie is Sandra Bullock and George Clooney. Why I love so much about this movie is about there are many physics concept that is apply in this movie which I can watch while learning. The most unforgettable scene which is when Ryan Stoned that is acted by Sandra Bullock had an hallucination in the ship when she left alone because all of their friend already lost in the space. She saw her friend Matt Kowalski acted by George Clooney fly in the space. She open the spaceship door, when she open it there is nothing sound that is heard. This scene contains physics concept why there is no sound on the space because sound travels in waves like light or heat does, but unlike them, sound travels by making molecules vibrate. So, in order for sound to travel, there has to be something with molecules for it to travel through. On Earth, sound travels to your ears by vibrating air molecules. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there. The other scene that contains physics concept is when Sandra Bullock using her jetpack to travel in the space to repaired the spaceship. The physics concept involve in this scene is when she using the jetpack. Jetpack using conservation of momentum to make the person using it to move. The expelling gas from a pressurized container still results in a force, and according to Newton's Third Law, there is an opposite force pushing the astronaut away. This can also theoretically be accomplished by throwing an object to propel yourself away from the direction of the thrown object. There are many others physics concept that involve in this movie but that only I can explain from this movie.