Showing posts with label tugas. Show all posts
Showing posts with label tugas. Show all posts

12 Feb 2013

Energi Ramah Lingkungan

            Saat ini listrik nampaknya sudah menjadi kebutuhan primer bagi masyarakat, terutama yang hidup di daerah perkotaan. Bisa dilihat ketika terjadi pemadaman listrik di berbagai daerah, banyak industri yang terpaksa gulung tikar karenanya. Indonesia mungkin masih menilai listrik dari segi ekonomi daripada segi ekologinya. Padahal banyak dari energi yang selain murah juga ramah terhadap lingkungan. Energi ramah lingkungan adalah segala macam energi yang dihasilkan dengan menggunakan sumber daya alam yang lebih rendah dan menghasilkan emisi atau limbah yang lebih rendah pula. Berikut adalah beberapa contoh penghasil energi yang ramah lingkungan :
 

1. Sel Surya

          Energi matahari merupakan energi yang paling murah dan terbaharukan (renewable). Sel surya atau solar cell merupakan alat yang dapat menghasilkan energi listrik menggunakan cahaya matahari. Karena menggunakan cahaya matahari, alat ini tentu saja bebas emisi. Sel surya juga sangat cocok untuk daerah terpencil yang belum terjangkau listrik PLN.
 

 2. Kincir Angin
 
 
          Kincir angin atau windmill pertama kali digunakan untuk penggilingan padi. Kalau di Indonesia kincir angin juga biasa digunakan pada tambak garam untuk memompa air laut. Di negara maju kincir angin telah lama digunakan sebagai pembangkit listrik yang hasilnya dapat digunakan untuk memenuhi kebutuhan listrik negara tersebut. Kincir angin merupakan salah satu alternatif sumber energi yang ramah lingkungan. Seperti sel surya, kincir angin sama sekali tidak menghasilkan gas buang. Bedanya, kincir angin menggunakan turbin, dan tenaga yang digunakan untuk menggerakan turbin tersebut tidak stabil, karena arah dan kecepatan angin yang berubah-ubah.
3. Pembangkit Listrik Tenaga Panas Bumi

 
 
           Indonesia dikabarkan merupakan negara dengan cadangan panas bumi terbesar di dunia. Indonesia memiliki sekitar 40% dari total cadangan panas bumi dunia, tapi yang saat ini dimanfaatkan baru sekitar 4%-nya. Listrik yang dihasilkan berasal dari uap air yang dimampatkan dan digunakan untuk menggerakan turbin. Sisa yang dihasilkan dari pembangkit listrik ini adalah uap air yang sama sekali tidak membahayakan lingkungan.

Beberapa contoh di atas diambil karena bukan cuma ramah lingkungan, tapi karena buangan yang dihasilkan oleh alat-alat tersebut tidak berbahaya bagi lingkungan, bahkan beberapa sama sekali tidak menghasilkan gas buang.

8 Jan 2013

Indonesian Story - Damar Wulan

Damar Wulan was born in the village of Paluh Amba, not far from the capital city of Majapahit. He was the son of Udara, the former prime minister of Majapahit. Since his father had retired his family live in a quiet and prosperous village outside the capital. Damar was a smart boy so he could easily learned the lessons his father taught him. He learned martial art, religion, politics, and literature. He was very good at all those subjects. When his father thought that he is mature enough, he asked Damar to find job in Majapahit. He told Damar to apply for a job at the Prime Minister's office. He hoped that his close relation with the new prime minister would help him get the prime minister's attention. Furthermore Damar was a smart boy so his father was sure Damar was capable to do any job.

Damar was very confident he would get a good position at the prime minister's office. Early morning he left his village. At midday he got to Majapahit and he directly went to the prime minister's house. Prime Minister Logender was his name. The guards sarcastically questioned him when he told them he would see the prime minister.
 
'Who do you think you are?'
 
'I am Damar Wulan. I am the son of the former prime minister Udara. My father told me to see the prime minister here'
 
'If you think you can impress us by telling us about your father, you are completely wrong poor boy. The son of a prime minister would never go anywhere on foot'
 
'But, that's true. My father told me to find job here'
 
'Listen poor boy, the prime minister is a very busy person. He does not have time for job seeker like you. But if you need a job, there is a vacant position here. Let me report my chief'
 
Then the soldier reported to his superior. After that someone called Damar to get into the commander's chamber. He told Damar that the prime minister's office needed several boys to take care of the horses. Damar was surprised because he expected clerical job but then he accepted the offer. Since that day he lived in a simple hut behind the prime minister's house.
 
Damar did a good job so his superior was satisfied with him. He was also very sociable. Soon he had a good relationship with the prime minister and his family. The prime minister had two sons - Layang Seto and Layang Kumitir and a daughter - Anjasmoro. His sons were very arrogant and lazy. They treated Damar cruelly. They wanted Damar to do whatever they want. Every body hated them but nobody dare to express their feeling. Anjasmoro, on the other hand, liked Damar very much. Gradually she fell in love to Damar. So did Damar. They had a secret love. When Layang Seto and Layang Kumitir knew what happened to Damar and Anjasmoro, they were very angry. They treated Damar more and more cruelly.
 
At the time the kingdom of Majapahit faced a very serious problem because of the rebellion of Menak Jinggo. He was a half brother of the Queen Kecono Wungu. He was a prince of Majapahit and a highly respected general of the Majapahit army. For his great achievement for his country his father appointed him as the ruler for the kingdom of Blambangan, a vassal state under Majapahit. When his father passed away he was sure that he would become the successor. But he was very disappointed when his father appointed his sister instead. He thought that he was more capable than Kencono Wungu so he rebelled.
 
Menak Jinggo proved to be a good general. Under his leadership the Blambangan army could win several battles with Majapahit army. The territory of Majapahit one by one fell to Blambangan. At the time the morale of the Majapahit army was already down. They were not sure that they could win the war. So the queen and the prime minister met everyday to discuss the worsening situation. Some weeks went by but still they did not have any ideas to solve the problem. Every report they received about the war was only about the defeat of the Majapahit army.
 
Prime Minister Logender was shocked when his wife reported to him about the affair of Anjasmoro and Damar Wulan. For a highly respected person like him, it was a very serious blow to his ego. He was a very respectable person while his daughter dated with a poor boy. It was a serious humiliation. He could not accept it. This fact made him very angry. He thought very hard to find a solution. Suddenly an idea struck his sharp mind when he was meditating at midnight.
 
Early in the morning he went to the palace and asked the queen for an audience. Then he explained his plan.
 
'Your Majesty, last night I had an idea'
 
'Tell me about it'
 
'Our army could not win because we apply a wrong strategy. The Blambangan army is very good at a frontal open warfare like that. Furthermore our army's morale is now down. So we have to avoid open warfare. Since now on we have to launch a new tactics of secret operation. We must send a small army unit to kill Menak Jinggo secretly'
 
'Who will do that?'
 
'I have a body guard. His skill in martial art is excellent. He is very capable at individual fight. So he is ready for this duty. I am sure he is the right person'
 
'OK, I think you are right. Send him as soon as possible to Blambangan. If he can do his job well I will give him great reward'
 
When Logender got home he called Damar Wulan immediately. He asked him about his martial art skill. Damar said he had mastered some fighting skill. His father had trained him Pencak Silat, the Indonesian martial art. As a result, he was very skillful at using sword, lance, as well as empty hand fighting technique. Then Logender asked him to fight both Layang Seto and Layang Kumitir. Both of them fought emotionally since they hated Damar very much. But Damar was smart, skillful, strong and tough. In just several minutes he could beat both of them without difficulty. Logender was angry but also satisfied since he found a way to get rid of both problems - his home and his country.
 
'Damar, you are a great fighter. I am very proud of you. And that's why you will receive a great honor to fight for your country. Now there is a rebellion in Majapahit. The king of Blambangan has done a crime. His name is Menak Jinggo. Find him in his palace and Blambangan and kill him. Are you ready?'
 
'I am ready any time Sir'
 
'Good. Today you have to prepare everything and tomorrow you must leave for Blambangan secretly. Do not tell any one about this duty. Not even Anjasmoro. Don't be afraid because the Majapahit army will fully support you. They will back you and provide all your needs. When you can kill Menak Jinggo behead him and bring his head here. If you can do this job well you will be promoted to a high position as the commander of Majapahit army'
 
'Yes, Sir. I am very glad to receive this order. I will do my best'
 
The next day, very early in the morning Damar Wulan left Majapahit alone. Meanwhile Prime Minister Logender had implemented his own plan. He prepared a small army unit under the leadership of his two sons. They went behind Damar in a distant so that Damar did not notice them. They went secretly so no one knew it. Their task was not to protect Damar but to kill him and seize the head of Menak Jinggo if he could kill Menak Jinggo. But if Damar was killed then they had nothing to do.
 
Several days later Damar Wulan arrived in Blambangan. The Majapahit army kept on spying on him. They were surprised to see Damar did not directly attack the palace. He applied for a job instead. Once again he was accepted to work in the palace to take care of the horses. Everybody including the king Menak Jinggo liked him because he was very polite and he did his job well. He was also very handsome that two of the king's wife fell in love with him. Waito and Puyengan were the wives of King Menak Jinggo.
 
As everybody trusted him, it was easy for Damar to search the palace. He knew where Menak Jinggo lived. One night he secretly jumped the palace wall to kill the king. Finally he was inside the king's bedroom. But unfortunately the king was ready to welcome him. A small army unit was there to arrest him. He was no match for Menak Jinggo. But Menak Jinggo was a smart person. He did not kill Damar instantly. He wanted to gather information from him. So he ordered his guards.
 
'Don't kill him. Let him alive, treat him well. I will question him tomorrow'.
'Yes, Your Majesty'
 
He ordered his men to treat him well. He even let Waito and Puyengan to see Damar. By doing so he hoped that Damar would give him valuable information. But Damar was also a smart person. He dated Waito and Puyengan and he asked them the way to kill Menak Jinggo. Since the two women loved Damar they revealed a secret.
 
'Nobody can hurt him. He is a tough guy and he is protected by god. God gave him a secret weapon called Wesi Kuning'
'What is that?'
 
'That's a golden amulet. It is just a small amulet, as small as a thumb but it is very powerful. Its shape is like a stick. It is stored in his bedroom'
'He is a dangerous man. We have to stop him. Could you help me find his amulet?
 
'I will help you if you marry me'
 
'Sure I will marry both of you as soon as I can arrest him'
When their turn to amuse the king arrived Waito and Puyengan could get into the kings chamber. They used that opportunity to steal the amulet. Then they gave it to Damar Wulan. Menak Jinggo did not realize their conspiracy. When the night was very quiet they opened the door for Damar Wulan. There was a fight but it was too late for Menak Jinggo. The sudden attack did not give him much chance to survive. Consequently Damar could beat his enemy and Menak Jinggo was beheaded.
 
Damar Wulan immediately left Blambangan palace that night while promising Waito and Puyengan to be back after he received the rewa.

written in English by: Bbudoyono

Indonesian Story - Timun Mas

Long time ago in the island of Java, Indonesia, lived a couple of farmer.  They had married for some years but they had no children.  So they prayed to a monster called Buta Ijo to give them children.  Buta Ijo was a ferocious and powerful monster.  He granted their wish on one condition.  When their children had grown up, they had to sacrifice them to Buta Ijo.  He liked eating fresh meat of human being.  The farmers agreed to his condition.  Several months later the wife was pregnant.

She gave birth to a beautiful baby girl.  They named her Timun Emas.  The farmers were happy.  Timun Emas was very healthy and a very smart girl.  She was also very diligent. When she was a teenager Buta Ijo came to their house.  Timun Emas was frightened so she ran away to hide.  The farmers then told Buta Ijo that Timun Emas was still a child.  They asked him to postpone.  Buta Ijo agreed.  He promised to come again.  The following year Buta Ijo came again.  But again and again their parents said that Timun Emas was still a child. 

When the third time Buta Ijo came their parents had prepared something for him.  They gave Timun Emas several bamboo needles, seeds of cucumber, dressing and salt. 

‘Timun, take these things’

‘What are these things?’

‘These are your weapons.  Buta Ijo will chase you.  He will eat you alive.  So run as fast as you can.  And if he will catch you spread this to the ground.  Now go!’

Timun Emas was scared so she ran as quickly as she could.  When Buta Ijo arrived she was far from home.  He was very angry when he realized that his prey had left.  So he ran to chase her.  He had a sharp nose so he knew what direction his prey ran. 

Timun Emas was just a girl while Buta Ijo was a monster so he could easily catch her up.  When he was just several steps behind Timun Emas quickly spread the seeds of cucumber.  In seconds they turned into many vines of cucumber.  The exhausted Buta Ijo was very thirsty so he grabbed and ate them.  When Buta Ijo was busy eating cucumber Timun Emas could run away.

But soon Buta Ijo realized and started running again.  When he was just several steps behind Timun Emas threw her bamboo needles.   Soon they turned into dense bamboo trees. Buta Ijo found it hard to pass.  It took him some time to break the dense bamboo forest.  Meanwhile Timun Emas could run farther.

Buta Ijo chased her again.  When he almost catch her again and again Timun Emas threw her dressing.  This time it turned into a lake.  Buta Ijo was busy to save himself so Timun Emas ran way.  But Buta Ijo could overcome it and continued chasing her.

Finally when Timun Emas was almost caught she threw her salt.  Soon the land where Buta Ijo stood turned into ocean.  Buta Ijo was drowned and died instantly. 

Timun Emas was thankful to god and came back to her home.

written by : Bbudoyono

Indonesian Story - Roro Jonggrang

Inside the northern chamber Shiva temple in Prambanan temple in Central Java, Indonesia, there is a stone statue of a beautiful woman.  She stands on a bull.  She wears a crown and jewelry.  Her body is slim.  Who is she?  There is no doubt that she is Durga Mahisasuramardini, a Hindu goddess.  But the Javanese people have their own story about her. Here is the story.

A long long time ago in central Java lived a wise king.  His name was Prabu Boko.  He had a beautiful daughter whose name was Roro Jonggrang.  They lived in a palace on top of a hill.  At present we can visit the ruins of the palace that is located about two miles south of Prambanan temple.  The palace is called kraton Boko. His country was so prosperous that another king was jealous. 

There was a neighboring kingdom under king Bandung Bondowoso.  One day king Bandung attacked Prabu Boko.  In a fierce fight King Boko was killed and his kingdom was conquered.  The young Bandung Bondowoso fell in love with Roro Jonggrang when he saw her beauty.  He wanted to marry her so he proposed her.  But Roro Jonggrang definitely did not want to marry someone who had murdered her father.  So she gave a difficult condition.

She told Bandung that she would marry him if he could build one thousand temples in one night.  Bandung was surprised but he was optimistic he could meet the condition.  He was a powerful king and he had many friends among the genie and spirits.  So he asked them for help.  With the help of those invisible beings Bandung built the temples.

Meanwhile Roro Jonggrang and her people kept an eye on Bandung.  When it was almost dawn Bandung and the genie had built nine hundred ninety nine temples.  Roro Jonggrang was very worried.   If Bandung could meet her condition, she had to marry him.  Then she had a bright idea.  She ordered her people to make noise and lights.  Women were ordered to cook and make noise by hitting kitchen utensils.  Men were also ordered to make noise around the temples.  Then the genie thought that daylight had come.  They were afraid of the sunlight so they left immediately.  Without their help Bandung was unable to finish the temple.

Bandung was very angry.  He knew that it was a dirty trick from Roro Jonggrang.  Then he cursed Roro Jonggrang into a statue.  The statue of Roro Jonggrang is now inside the northern chamber of the main temple which was dedicated to Shiva in Prambanan temple.
written by: Bbudoyono

Indonesian Story - Jaka Tarub dan 7 Bidadari

Once upon a time there was a widow who lived in the village of Dadapan.  She had a son whose name was Joko Tarup.  Dadapan village was close to a wood so Joko Tarup liked to go to the wood.  He liked hunting for animals with his blowpipe.

One day when he was in the wood he saw a beautiful rainbow and he saw seven angels went down through it.  He came closer and searched for them.  The seven angels were swimming and taking a bath in a lake.  Joko Tarup looked at them while hiding behind trees.  When they had finished taking a bath, they flew through the rainbow to heaven. 

The next day he saw the same thing again.  This time Joko Tarup had an idea.  He searched for their dress and when he found them he took one of them.  As they had finished swimming and taking a bath, they looked for their dress.  One of them could not find her dress.  Her friends had to come back to heaven so they left her.  She was crying while staying in the water.  Joko Tarup approached her.

‘Why are you crying lady?’

‘I lose my dress so I cannot go home’

‘Where is your home?’

‘I live in heaven.  I’m an angel.  My name is Nawang Wulan.  But I lose my dress so I cannot fly anymore’

‘I you don’t mind I will take my mother’s dress for you’

‘OK, please do’

‘Wait for me here, I’ll be back’

Then Joko Tarup went home to take her mother’s dress and gave it to Nawang Wulan.  He asked her to stay at her house with his mother.  Not long after that Joko Tarup married Nawang Wulan. 

As an angel Nawang Wulan had spiritual power.  She had ability which far above human being.  She could cook rice with just a bar of rice and when it had done the bowl will be full of rice.  But there was one condition.  The bowl must not be opened before it has done.  Joko Tarup was very surprised with her wife’s ability. He was very curious about it.  So when Nawang Wulan was away he opened the bowl.  Consequently Nawang’s spiritual power disappeared.  She had to cook as ordinary human being.   

Several months later Nawang Wulan gave birth to a beautiful baby girl.  Her name was Nawang Sih.  The birth of Nawang Sih added happiness to Joko Tarup and Nawang Wulan.

Since Nawang Wulan could not cook efficiently anymore, she needed more rice than usual.  The stock of rice in their store room diminished rapidly.  Then one day when she took rice there she was very surprised.  Nawang Wulan found her angel dress.  It was hidden there under piles of rice.  She immediately wore it and talked to Joko Tarup. 

‘My dear husband, now I know what you did to me’

‘Forgive me, my dear.  I admit that I did this because I love you’

‘I love you too.  But now I find my dress.  I must come back to heaven.  I am an angel.  My place is not here.  I have to go now’.

‘How about Nawang Sih?  She needs you’

‘I will leave her but don’t worry.  I will take care of her.  Anytime she needs me I will be here.  For that purpose please build a tower. When Nawang Sih cries put her there then call my name. I will come immediately.  But I will be invisible to you.  Good bye dear’

Then Joko Tarup built a tower behind his house.  Every time Nawang Sih cried he would put her there.  Nawang Wulan would come and take care of Nawang Sih.

Written by : bbudiyono

Indonesian Story - Danau Toba

Once upon a time there was a prosperous village in a far away island called Sumatra. In northern part of the island, lived a farmer whose name was Toba. He lived alone in a hut by a small forest. He worked on his farmland to grow rice and vegetables that he sells to local market. Once day he wanted to catch some fish so he went to a river and fished there. He was very surprised when he got a big fish. The fish was as big as human being. Soon he went home and put the fish in his kitchen. He planned to cook the fish for his dinner that night. When he got to his house that afternoon he took a bath. Then as he walked into his bedroom after taking a bath Toba was very shocked. Do you want to know what happened?

There stood in his living room a very beautiful girl. The girl greeted him nicely. For a moment Toba was speechless. When he could control his emotion he asked her.

‘Who are you? What’s your name? Why suddenly you are here in my house?’

‘Pardon me if I surprised you Mr. Toba, but you took me here. I was the fish that you caught in the river. Now that I become a human being again, I would like to thank you and I will be your servant to express my thankfulness’

‘Were you the fish?’

‘Yes, I was the fish. Look at your kitchen’.

Toba immediately rushed to his kitchen and the fish was nowhere to be seen. He saw some gold coins instead.

‘Whose coins are these? Why there are some coins here?’
‘Those coins are mine. As I changed into human being my scales changed into gold coins’

‘Ok you can live here and work for me. Your room is over there’

‘Thank you very much Mr. Toba’

Since that day the beautiful girl lived in Toba’s house. Since she was very beautiful Toba fell in love with her and not long after that they got married. The girl married to Toba on one condition that he would never tell anybody about her past. Toba agreed to the condition. Several months later Toba’s wife delivered to a baby boy. Their son was healthy. Soon he grew up into a handsome boy. Toba named him Samosir. Unfortunately Samosir was a lazy boy. He did not want to work at all. When his father worked hard in his rice field and farm, Samosir just slept. When he was awake he talked a lot and he ate a lot. Toba was very disappointed with his son’s nature. He hoped that one day Samosir would change into a diligent boy. Day in and day out but Samosir never changed.

Toba used to go to his farm and rice field early in the morning. Then at midday his wife would bring him food. They used to eat lunch at their farm. As he was a teenager Toba and his wife tried to change his behavior. They ordered Samosir to bring food for his father for lunch while her mother stayed at home to do household chores. But Samosir never did his duty well. He always woke up very late. He woke up after midday. Then one day his mother forced him to bring the food.

‘Sam, wake up. Go to the farm and bring the food for your father. He must be very tired and hungry now’.
But Mom, I am tired and hungry too’

‘What makes you tired? You just wake up. Go now. You father needs the food’

Toba reluctantly went to the farm. But he did not go to the farm immediately. He stopped somewhere in the street and ate the food. It was already late afternoon when he got to the farm. His father was disappointed. Then he was angry as he realized that his son had eaten his food. He said sarcastically.

‘O, you are stupid lazy boy. You are son of a fish!’

Samosir was hurt. He went home right away and as he got home he told his mother about his father’s words. Samosir’s mother was shocked. She was also deeply hurt.

‘O Toba. You break your promise so I cannot live with you here anymore. Now you have to accept to consequence of what you did. Samosir, now go to the hill, find the tallest tree and climb it’

‘Why mom? What will happen?’

‘Just do it, never ask any question. Good bye’

As soon as she finished saying that suddenly the weather changed. Sunny day suddenly turned into cloudy day. Not long after that the rain poured heavily. The rain last for several days. Consequently the area was flooded. The whole area became a big lake. Then it was called Lake Toba and in the middle of the lake there is an island called Samosir Island. Meanwhile Toba’s wife disappeared.

Lake Toba is located in the province of North Sumatra, Indonesia. Today it becomes a tourist destination.

Written by : Bbudoyono

28 Jul 2012

Translate