Television

Nowadays, television has become the most popular media of human kind. It’s also the necessary device in our daily life. By watching TV, we can see many things happened in the surrounding us world, therefore it help us to catch and avoid being dropped back from the world of information.

There so many advantages of television, it can enlarge our knowledge, as an entertainment, enrich our experience  of life. And then if children and parents watch TV together, it can strengthening the child–parent bond. If we watch the positive programs, can result positive lifestyle and behavioral. Television also the fastest media to shows news and can promote positive social messages.

But we can find the disadvantages of television, such reduce the quality of performance of the brain. So the brain will gradually decrease in function then will cause a feeling like lazy to think and the brain get tired quickly. It make our eyes will get a disability to see clearly, spend so many time, decrease the thought effort logically and also decrease our body health.

From the arguments above, I can give some recommendation :

ü Accompany the child while watching TV and select movies to watch

ü Do not place televisions or computers in children's bedrooms

ü Limit the amount of time spent in front of a TV for the child

ü Know what they are watching and not allow to watch drama, violence and programs of a sexual nature if not age-appropriate;

ü Do not use screen time as a 'reward' for good behaviour or as a parenting tool.

Source : from my English presentation

How Snow is Made

This topic is about what nature does that prepares all of the elements for the making of snow.

High up in the sky clouds begin to form. Clouds are made of water vapour. The temperature is cooler up in the clouds than it is on the ground as a general rule. However, the temperature is not constant throughout the clouds. There are different layers or zones of temperature. These different temperature zones play an important role in the forming of a snow flake or crystal.

The water vapour in the clouds is being blown around by winds through the different temperature zones. Typically liquid water will freeze at approximately 0°C. However, for water to become solid (freeze) the water molecule (H2O) needs to slow down and to touch something solid. By touching something solid and slowing down the water molecule can, under normal circumstances transition from a vapour/gas to a liquid to a solid, or from a vapour to a solid directly. But up in the cloud there is mostly water vapour (very few solids) and lots of movement. So the water molecules continue to cool while still in a vapour form. This is called super-cooling.

When a water molecule is in a super-cooled state it can go from a vapour/gas to a solid quickly and directly. So what it mostly needs now is something solid. The "something solid" is called a nucleator. Most commonly the nucleators found in clouds are dust. The nucleators are very, very small. Small enough that the winds can lift them high into the sky. Small enough that you can't see one with the naked eye. The job of the nucleator is to start the snow crystal. Once the crystal is started then other water molecules can join onto this crystal.

Eventually after blowing around for a period of time a water molecule will join with a nucleator. The process of building a crystal has started. Other water vapour molecules in their super-cooled state will find this crystal. Some of these molecules will join the crystal and some will not. The process of building a crystal is slow.

How a crystal grows is determined mostly by the amount of water available (the super-saturation level of ice relative to water in air; we'll call this the "SSL(I)" for personal typing sanity) and the temperature with an influence by the atmospheric pressure and (it seems) possibly the electrical charge. Once the crystal starts it is still subjected to the same forces that the water vapour molecules are subjected to. The crystal is blown around throughout the cloud through a variety of different temperature zones. The crystal can continue to be blown about for tens of minutes to hours before falling to the ground. At different temperatures fresh water molecules will attach to the crystal at different locations. In other words the crystal will "grow" differently at different temperatures. Since the crystal is being subjected to a variety of temperatures and humidities as it is blown about, the crystal will grow differently at different times.

source : www.skiwax.ca/tp/snow.php

Annyeong ^^

Yaps, ini adalah MV Super Junior, lagu yang jadi salah satu OST-nya drama Haru : An Unforgettable Day in Korea. Dari OST-nya aja drama ini udah kelihatan keren :)

Haru : An Unforgettable Day in Korea.
Cast :
- U-Know Yunho as a romantic tough action actor
- Lee Dae Hae as a beautiful scenario writer
- Han Chae Young as a sexy stylist
- Park Shi Hoo as a cute mischievous cafe manager
- Kim Bum as a photographer
- Big Bang as an idol stars