How Tree Got Its Masses

Tress is one of the biggest thing that take place on our earth. Ever thinking how the tress in front of your house become so big and have a massive mass? Where are the mass come from? Put it in your mind and try to find it ! As Antoine Lavoisier said that mass in a closed system will be always has a same amount, so with the trees! In early 1960’s, a scientist Jan Baptist van Helmont try to figure out where the mass on tree is coming from. He make an experiment by measure a mass of soil and planted a plant over it. After take care the tree over 5 year, he pull it off and measure the soil’s mass. He found that the …

VA vs Watt

You may see power unit that written as KVA and KW. Can you guess which one is true? The answer lead to both of them are true. KW will have the same meaning as KVA when the KVAR component is 0. Thinking as a perpendicular triangle with KW and KVAR as its perpendicular side and KVA as its hypotenuse. So when the devices came into a motor, it will had KVAR unit and for simplifying it we can write it as KVAR with pF (power factor). KVA is more likely a sum of KVAR and KW. It also happened with generator or our electricity provider. They’re written in KVA that means whatever is our load, it can handle up to …

Program (Computer Program)

What is it ?  A computer program is a collection of instructions that performs a specific task when executed by a computer. A computer requires programs to function, and typically executes the program’s instructions in a central processing unit. – Wikipedia Confused? Alright, a program can simply said as a application in our computer, smartphone which has icon and can do something when we pressed on it. The world itself is very wide, don’t you mind how your television remote works? how your calculator works? how your chatting application works? and even how google works !? All of it is because of program inside the computer , wait,  what is computer, is calculator a computer ? In this case, AC/television’s remote also a …

Singapore on Holiday

Have any plan to get into Singapore on next holiday? Just prepare for it! As we know it has tropical climate therefore it will be very hot all days. As a suggestion, don’t bring any long pants or other clothes that will make you feels hotter :). It consist of 3 main ethnic, they are Chinese, Malaysia, India. But nothing to worry since most people can speak english there. For room you can choose either hotel, private condo, or guest house which is cheaper. Pick them using AirBnb, Alibaba, or another apps. Changi Airport We arrived! here you can find one of most great airport over the world. You can find many duty free store inside it, but leave it first, …

Car Free Day Dago

CFD atau kerap disebut Car Free Day adalah suatu acara rutin mingguan yang diadakan di beberapa Kota besar di Indonesia, salah satunya adalah kota yang saya tinggali, Bandung. Sesuai dengan namanya, CFD berarti membebaskan jalan raya dari kendaraan bermotor pada durasi tertentu (bukan seharian penuh lho!) dan biasanya diadakan rutin tiap hari Minggu pagi. Mungkin beberapa orang akan bertanya-tanya dan bersungut-sungut, buat apa sih ada CFD!? Mengutip dari [1], tujuan diadakan CFD adalah demi kebaikan warga bersama, yaitu : Pemulihan kualitas udara pada suatu kawasan dengan mengurangi pencemaran udara akibat penggunaan kendaraan bermotor. Dengan adanya penutupan jalan selama pelaksanaan HBKB, akan terjadi pemulihan ekosistem di kawasan tersebut. Edukasi dalam efisiensi penggunaan kendaraan pribadi sehingga beralih ke angkutan umum, atau bersepeda, atau berjalan kaki. Pasti …

Sendiri atau Bersama-sama

Pada saat sekolah dasar, saya ingat terdapat istilah yang sangat sering muncul di buku pelajaran kewarganegaraan, yaitu zoon politicon. Selain ditulis dalam buku, istilah ini pun sangat sering disebutkan dalam banyak pembicaraan di dunia sosial. Istilah tersebut merupakan salah satu karakteristik utama manusia, manusia adalah makhluk sosial yang hidup bermasyarakat. Karakter tersebut berarti bahwa manusia tidak dapat hidup sendiri saja tanpa adanya orang lain dalam melakukan berbagai hal. Sebagai contoh yang paling sering dijumpai adalah kebergantungan seorang bayi terhadap orang tuanya. Bayi tidak mungkin dapat survive tanpa adanya peran orang tua yang memberi makan, memberi pakaian, memberi kasih sayang. Pada kesempatan ini saya ingin menceritakan pengalaman saya dalam hidup bersosialisasi dalam masyarakat. Sekitar 4 tahun lalu yaitu pertengahan 2010, saya menyelesaikan pendidikan SMA dan …

Internship at Batam, June 2013

Like everybody did, I have to take internship as requirement to finish my study. In my school, the duration of internship should be at least 2 months. As electrical engineering student, it wasn’t easy to find one. There was hard to find company or industry which engaged in electronic field since Indonesia was still developing country. It would be a pity if i worked for something that I didn’t interested at. After did some search, I found a company which worked in semiconductor research. It was located at Batam Island. Batam Island is part of Kepulauan Riau State and located in west Indonesia. We able to reach this place by plane, there is international airport which is called Hang Nadim …

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