People have long guessed that substances consist of individual tiny particles. They are called atoms. In the overwhelming majority of cases, atoms do not exist alone but are grouped into molecules. Atoms and molecules are extremely small: any tiny piece of substance that we can see (e.g. dust) contains more atoms than stars in our entire galaxy. Compared to the variety of substances, the number of atoms is very limited. Atoms can combine with each other in different ways. Just as the letters...

Sihanoukville is rapidly growing until these days, still one of the major tourist destinations in Cambodia for those who seek for beach break, snorkeling, island hopping, scuba-diving, fresh seafood, gambles, casinos and nightlife entertainment. From low, mid to high ranged, accommodating at beautiful resorts, bungalows, lodges or standard hotels at the mainland is a basic relaxing experience while Koh Rong Samloem Island and Koh Rong Island provide ideals for a better beach experience beyond. The...