Plastic Recycling Code

Do you use a lot of plastic packaging for your food or drinks?  Be careful.! Plastics are made with specific goals tailored to their usage. Let say packaging for detergents, food, oil, chemicals, water, and so forth. Characteristics of each plastic materials also vary.

Code of plastic materials are usually placed at the bottom of the plastic containers. Basically  this code states the level of their recycle rate because each plastic materials have a different recycling rate. This code also states the resin content of plastic materials and in terms of application, we can find the guidance in using plastic materials. Some are suitable for high temperature application and some aren't. Some plastic are allowed  for one use only, and some even poisonous. For the food grade plastic, we can use as our food container. That is why you need very careful in using those kind of plastic, especially for your food and drink container.  Find the summary:

Einstein's Puzzle -Try Your Logical Skill

For those of you, who like adventure with puzzles, may have come across this puzzle. However, this game will remain interesting to solve.

There is one riddle, known as the Einstein’s Puzzle. The idea is that we are asked to solve the problem with identifying who lives where, what citizen he is, what brand of his drink, what brand of his cigarette, and what pet he has?

This is the clue: There are five houses of different colors next to each other on the same road. In each house lives a man of a different nationality. Every man has his favorite drink, his favorite brand of cigarettes, and keeps pets of a particular kind.

What is Octane Number?

Octane number of gasoline indicates the content of carbon chain of C8 (octane) contained therein, similar to the Cetane number for diesel fuel as a measure of fuel quality despite having a different understanding. In the case of combustion, octane rating will determine the fuel ability to not ignite spontaneously in the combustion chamber. Spontaneous ignition means with the compression process without any sparks from spark plugs air and fuel mixture burn by itself. The occurrence of spontaneous combustion is characterized by the occurrence of knocking in the engine and can cause engine damage. Fuel does not burn completely but explode.

The octane number is determined by comparing the characteristics of a gasoline to isooctane (2,2,4-trimethylpentane) and heptane. Isooctane is assigned an octane number of 100. It is a highly branched compound that burns smoothly, with little knock. On the other hand, heptane, chain a straight, unbranched molecule is given an octane rating of zero because of its bad knocking properties.

Why did the Earth getting hotter?

When we noticed, from time to time the earth's temperature was getting hotter and hotter. Why did this happen? That is what we called global warming.  Global warming is the increase in temperature of the earth because of the influence of greenhouse gases in the atmosphere such as water vapor, carbon dioxide, nitrous oxide, and methane. In the normal amount, these gases are useful to maintain the temperature of the earth keep warm. In excessive amounts, these gases will cause the greenhouse effect.

The greenhouse effect can be explained as follows: The sun's rays penetrate the earth's atmosphere, in which greenhouse gases are also located, toward the surface of the earth. Most of the solar energy is absorbed by the earth and causing the Earth's surface temperature increases. Some is reflected back into the atmosphere in the form of infrared rays. 

Place on Earth First Experienced the Turn of the Year

A few hours ago, people around the world prepared to celebrate the New Year 2010. Did you know where new year celebrations will occur the first time in the world? The answer is Kiritimati. Kiritimati or Christmas Island is a Pacific Ocean atoll in the northern Line Islands and part of the Republic of Kiribati.

New year celebration in Kiritimati recorded as the first in the world. Kiritimati is in the world's furthest forward time zone, UTC +14 or +6 hours earlier than Jakarta-Indonesia. Kiritimati is the first inhabited place on Earth to experience the New Year each year.

For the category of major cities, Auckland in New Zealand is the first city in the world to celebrate the turn of the year. The next shift occurred in Australia, Asia, Africa, Europe and eventually America.

Please zoom the map out  if you can't see the location. It is very small atoll [coral island] eastern of Papua Indonesia in North Pacific Ocean, north east of Sydney.

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