27 November

Selamat hari lahir kakakku,

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Du

I received a hand-written letter.Judging from the writing, I thought I was able to tell who sent it to me very easily. It was from someone. Someone I have known before. I was certain, 100% sure it was from her. 
Excited I tore the envelope and immediately threw it away. Took out the letter and began to read it. " It took you years to write this to me"  I murmured. Had not started reading the content yet.  That delighted I was. A bit frustrated as well.  Had she sent it a bit earlier, I would have felt better. A lot better. 
I read every sentence with a smile on my face.  It was like I took a trip down memory lane. 
"Ngah, ngah"  I could hear Mama calling for me. I immediately stopped reading so that I could hide her letter, as she neared my room. 
Mama's voice echoed and became slightly louder than it was before. 
I squinted as the light went on, was not able to open my eyes completely. 'It's time for Sahur' said Mama.
It was that moment I realised it was a dream.  My…
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Teori relativiti Einstein

Image
Einstein postulated bahawa 
1)Kelajuan cahaya itu malar atau constant.
Tak kiralah sama ada punca cahaya atau pemerhati tu statik ataupun bergerak.

Contohnya,

Cahaya bergerak dgn kelajuan 3x10^8 meter dalam masa sesaat
Sama ada kita tengah berlari atau dalam keadaan statik,cahaya punya kelajuan masih lg sama.

2)Tapi berlainan pula dengan jarak,masa dan jisim.
Kesemuanya adalah relatif kepada pemerhati.

Contohnya,
Kalau si A pegang sebiji bola di dalam kereta yang bergerak dgn kelajuan 50 km/h,
berapa kelajuan bola tersebut?

Di sini ada dua cara untuk jawab soalan tu,
Pertama,
Bola tu tak bergerak RELATIF kepada si A,

Kedua,
Bola tu bergerak dengan kelajuan 50 km/h RELATIF kepada orang yang berada kat luar kereta.

Contoh kedua;

bayangkan ada dua buah kereta,
kereta A bergerak dgn kelajuan 40km/h
dan kereta B bergerak dgn kelajuan 30km/h,

Kelajuan kereta A relatif kepada kereta B cuma 10 km/h,
tapi kalau orang kat sebelah jalan ukur kelajuan kereta A,
Dia akan dapat kelajuan kereta A tu 4…
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Weihnachtsmarkt / Christmas Market

One of the things that I really miss about Germany is its christmas markets.German, usually go there to drink Glühwein.  But we, Malaysian just strolled through its beatifully decorated market stalls. We bought 3/4€-worth of sugar roasted almonds. I took some pictures too, whenever I had my DSLR with me.
Christmas market has another special meaning for me.  It usually reminded me of her. The first christmas market that I went to was the one in the city of Göttingen. About one hour before my arrival, I received a picture from her via Whatsapp. It was a picture of her holding a piece of paper, on which you-know-what-it-is was written.  That was so random. But who cares?  It was super cute. 
She was an undemonstrative girl.  She did not really express her feelings well.  But she was good at venting her anger and frustration. She was still loveable when she was 'mad'. I, for some reasons kept asking myself whether or not our roles were somehow switched.  So, whenever she expressed her emotions, …
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