World science

Simple science and experiments

Indonesian Culture – indonesiaculture.net. Night since last arrived, the night market should have been crowded with visitors, passing of this wide land. Tumult of visitors tends to slightly reduce the loud roar of the engine generator – power has been since the afternoon pushing nonstop merry-go-round, although no one riding. Unsaturated spins, to continue to attract people to come and ride around.
“Lestaria” carrousel, are certainly “The Ordinary Night Market”. It will remain everlasting into ordinary night market – Entertain marginalized peoples, peoples who could not reach the pass ticket Ala “Disneyland” style or video games. Not able shop at the Mall, even the corners posters flirting with the large write “Jakarta Great sale.”
People’s night market has become one part of the history of our nation journey. In 1920, thousands of youth gathered on Monas region. Gambir Night Market became a medium of the fusion of different layers of the society from all corners of Jakarta (Batavia). Not only become a place of goods transactions, but rather a space for the exchange of information, even when the freedom fighters prepare for against the invaders.
For Ujang, lucky Mas Jangkung had to understand the conditions of the night market which increasingly empty. For him the most important operational needs 10 liters of diesel fuel to operate 3 diesel engines and some money left for his servants. Workers are paid based on the entering of visitors every night. 25% revenue share for his 10 workers, remaining for other operating expenses, such as legal fees, diesel fuel and rental trucks.
Indonesian Culture – indonesiaculture.net. Night since last arrived, the night market should have been crowded with visitors, passing of this wide land. Tumult of visitors tends to slightly reduce the loud roar of the engine generator – power has been since the afternoon pushing nonstop merry-go-round, although no one riding. Unsaturated spins, to continue to attract people to come and ride around.

Monday, February 21, 2011

Non inflammable material

Posted by worldscience at 2/21/2011 01:45:00 AM

Place a coin under a cotton handkerchief and ask someone to press a burning cigarette on the cloth stretched over the coin.

You need not be afraid of scorching the material, because only a harmless speck of ash will be left.

The experiment shows that the metal of the coin is a much better conductor of heat than the cotton fabric.

On rapid pressure the heat of the burning cigarette is immediately conducted away by the coin. There is only enough heat to cause a small rise in temperature in the coin, and the cotton does not reach a high enough temperature to burn.

Saturday, February 19, 2011

A clear case

Posted by worldscience at 2/19/2011 12:08:00 AM

Put spoons made of steel, silver, and plastic and a glass rod into a glass. Fix a dry pea at the same height on each handle with a dab of butter.

In which order will the peas fall if you pour boiling water into the glass?

The butter on the silver spoon melts very quickly and releases its pea first.

The peas from the steel spoon and the glass rod fall later, while that on the plastic spoon does not move. Silver is by far the best conductor of heat, while plastic is a very poor conductor, which is why saucepans, for example, often have plastic handles.