Happy Chap Goh Meh 2012

What is the most interesting on Chap Goh Meh is the orange throwing event by the sea. Long time ago, as in 60 years ago maybe, the girls were not allowed out of their homes to mix with boys. However, on Chap Goh Meh, they were let out of the home and they would throw oranges and make wishes. In Hokkien, it goes something like “Tim kam, chua ho ang” or “Throw Mandarin orange, marry good husband. This festival is also regarded as the Chinese version of Valentine's Day.

Penangite usually will cook bubur cha cha on 15th day of Chinese New Year calender 

Chinese New Year is going to end soon. So, I wish you all  ‘天天好天’

Life in 5 Bottles

1. Milk bottle when we are in infant stage
2. Soft drink bottle when we are in teen days. We like to partying while we still can.
3. Liquor bottle when we enter working's life. 
4. Mineral water bottle when are getting older.
5. Lastly, we are getting sick and it is time to end our life with this terrified bottle.

It does not matter how we started our life. How we end our life is the most concern.

Chemistry Form 4: Chapter 2 - Rutherford Atomic Model

The Gold Foil Experiment

Rutherford bombarded a very thin leaf of element gold with a stream of high speed positively charged particles. These positively charged particles are alpha radiation from helium nuclei. 

As expected, most alpha particles went right through the gold foil but to his amazement, a few alpha particles rebounded almost directly backwards due to same positive charge repulsion force.

Click on the diagram to play!

This proved that:

1. the atom had a dense but very small positive nucleus
2. the electrons were far away from the nucleus
3. the electrons were separated from the nucleus by a lot of empty space

Talented Malaysian

Physics Form 4: Chapter 5 - Refraction of Light

• Refraction is the phenomenon of light bending when it travels from one medium to another medium.
• Refraction occurs because the velocity of light changes when it travels from a medium into another medium.

The law of refraction states that:

1. The incident and refracted rays are on opposite sides of the normal at the point of incidence and all three are in the same plane.
2. The ration of sin i / sin r is a constant. This constant is called refractive index.

Click on the diagram below to play!

Physics Form 5: Chapter 1 - Shape of the Coastline due to Wave Refraction

• In the centre of the ocean, the wavefronts are straight and parallel to each other. This is because the water waves travel at uniform speed as the depth of the sea water is uniform.
• When the waves reach the coast, the water is shallower.
• Wave speed is reduced and refraction occurs. The wavefronts are refracted and become closer to each other. Wavelength decreases.  
• Refraction causes the wavefronts to be bent towards the normal.

• Wave refraction causes wavefronts to parallel the shape of the coastline as they approach shore.
• Wave refraction also causes wave energy to converge at cape and resulting erosion.
• Wave energy diverges at bay and spreads out to a wider region, resulting deposition of sand. Therefore, amplitude of waves at the bay is smaller than at the cape.

Penang Science Council Holds ‘2012 Energy Saving Competition’.

SECONDARY school students can bring their imagination to life by designing and constructing a race car model that uses solar energy for the ‘2012 Energy Saving Competition’.The competition, organised by Penang Science Council Malaysia and assisted by Ming Dao University in Taiwan, aims to promote energy and environment conservation among secondary school students in Malaysia.

The council’s Mentoring Young Scientific Entrepreneurs Pillar chairman Datuk Seri Kelvin Kiew said there would be two categories — Solar Model Car Racing Contest and Solar Energy Application Design Competition — which are open to all secondary school students in the country.

He said both events were open to teams of three, and the registration fee is RM100 per person (RM300 per team) per competition.“For the Solar Model Car Racing Contest, each team will be given materials to design and construct their own model,” Kiew told a press conference on Thursday.

“As for the Solar Energy Application Design Competition, participants need to design a model of a product, system or facility that uses solar energy.“Ming Dao University will be sending their experts to educate the students about renewable energy applications throughout their participation in the event.”

Teams can register online at http://www.tiger2u.com/solar2011/ and the closing date is Jan 15 for the Solar Energy Application Design Competition, and Jan 28 for the Solar Model Car Racing Contest.

Kiew said for the design competition, the teams have to submit their design proposal before the closing date.The events will be held at SMJK Heng Ee from Feb 4 to 6. First, second and third placed teams will walk away with RM1,500, RM900 and RM600 respectively, medals and certificates.

Welcome Back To School

Today is the first day of schooling in the year of 2012. I have heard many comments from students regarding their first day at school. Even my children also gave the same comment. So boring to come to school ..... ..................bored.............holiday so short................

From these comments, our school perception is a BORED PLACE. Sadly to say, sekolah ku rumah ku that used to be a motto in my time is no longer relevant in today student mind.