Posts Tagged ‘Come’
Arcade Games Have Come a Long Way
Arcades have come a long way since their inception as simple coin operated games long ago.
The earliest coin operated games showed up in the 1930′s as pinball machines. In the early 70′s the world was mesmerized by the video game called pong. Then Atari came into the picture as the first major player in the industry.
New arcade games were developed and seemingly overnight they appeared in restaurants, grocery stores, bars and movie theaters all over the United States and other countries. Games such as Space Invaders, Galaxian, Pac-Man, and Donkey Kong were especially popular.
The simplest arcade games are still fun to play but the most advanced games challenge you more, and generally provide a more gratifying user experience. Arcade games are products of someone’s imagination. Someone who took a simple idea created an interactive product that appeals to the masses of gamers out there. Some games become extremely popular, others do not.
At one time the only place you could play an arcade game was at a public establishment such as movie theaters and bowling alleys. They started out being the size of small refrigerators. Then we had home gaming systems which over the years were developed and got smaller, and much more powerful with better graphics. There are home gaming systems, handheld games, games on cell phones and about any other electronic media with a screen.
What fascinates me about the games is the endless variety. There are free games available all over the internet and they are all fun to play. If you find yourself sitting in front of a computer waiting on a download you can play a free arcade game.
You won’t have any trouble finding an arcade site, there are literally thousands of them on the internet today.
A lot of the game sites allow you to keep score and challenge others to beat your score at a particular game. Some have a link you can embed into your social networking page which will allow other users to play the game. Most of these web arcade sites have upwards of 3000 games or more.
Arcades are indeed a lot of fun. They have come a long way from years ago and I expect that the popularity of arcade games will not diminish anytime soon. They are sure to be developed further as time goes on with more advances in the next few years than we have seen in the last 20 years.
Anyone young and old can play arcade games. It is great exercise for the brain and is fun and challenging at the same time.
Check out some of the great arcade sites out there and play away.
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Where Do Animals Come From?
Animals are usually easy to distinguish from other forms of life because most of them have the ability to move. This rule works very well for most of the animals that live on the land but it is not always the case for those that live in water. Here they live in water and in some cases have trailing arms or tentacles that make them look like plants. A reliable way of identifying animals is by their basic biological features. Their bodies are composed of many cells and they have nerves and muscles that enable them to respond to the world around them. They get the energy that they need by taking in food.
Animals are highly complex and responsive compared to other forms of life. Even the most simplest of animals react quickly to changes around them, shrinking away from potential danger or reaching out for food. The animals that are able to learn from experience and are unique to the animal world, are those animals with well developed nervous systems. The worlds largest living animals, baleen whales can live up to 25 metres long and weigh 120 tons. At the other end of the scale are microscopic organisms and sub microscopic flies and beetles. These animals are so tiny that their weight is negligible but they still possess the body systems that are needed for survival.
The different body sizes allow animals to live in different ways. Whales have few natural predators and the same is true of elephants, which is the largest land animal. They are able to process food on a very large scale because of the massive size of their bodies. However they take a long time to reach maturity, which means that they are slow to reproduce. Insects on the other hand are easy prey for many animals and their small size means that their bodies are not as energy efficient as large animals. But because they can breed very quickly when the conditions are in their favour, their numbers can rise at a very fast rate.
Almost all of the world’s largest and most familiar animals are vertebrates; these are animals that have backbones. They include the fastest animals on land, sea and air and also the world’s most intelligent species (homo sapiens). Vertebrates are all related to each other, sharing a common ancestry that goes back millions of years. However despite the fact that vertebrates lead the animal kingdom in many fields, they only make up a small minority of the animal species known today. The vast majority of species are invertebrates – animals without backbones.
Invertebrates often have very little in common with each other (unlike vertebrates), apart from their lack of a backbone. The giant squid which is the largest invertebrate, can measure over 16 metres long but it is very much an exception. Most of the invertebrates are very small and live in inaccessible habitats.
Most animals are cold blooded (ectothermic), which means that their body temperature is determined by that of their surroundings. The ability to generate their own heat and to maintain a constant internal temperature, regardles of the conditions outside, is particular to warm blooded (endothermic) birds and mammals. This difference in body temperature has some far reaching effects on the ways that animals lead their lives; this is because animal bodies work best when they are warm. Reptiles, amphibians and insects are cold blooded animals. They can exist very easily when the conditions are warm but if the temperature drops, there work rate and energy slows down. They are able to absorb some heat by being out in the sunshine but if the temperature falls below about 50 degrees fahrenheit, their muscles work so slowly that they find it difficult to move. Mammals and birds are hardly affected by this kind of temperature change. When the temperature falls below freezing, their internal heat and good insulation helps them to remain active.
In a physical way vertebrates function as separate units even though they may live together in families or in larger groups. In the invertebrate world it is not unusual for animals to be permanently linked to together, forming clusters that are known as colonies. These colonies often look and behave like single animals. Most are static but some, particularly those that live in the sea, are able to move around. Colonial species include some of the world’s most amazing invertebrates. Pyrosomes, for example, form colonies that are shaped like test tubes which are large enough for a diver to swim enter. However in ecological terms the most important colonial animals are reef building corals, which create complex structures that provide havens for a range of other animals. In reef building corals, the members of each colony are usually identical. But in some colonial species, the members have different shapes that are designed for different tasks. An example of this is the Portuguese man o’ war which looks like separate animals, called polyps that capture food, digest it, or reproduce. They use a giant filled polyp as the colony’s float and dangle beneath it.
Animals obtain their energy from organic matter or food. They are able to break food up by digesting it and then absorb the substances that are released. These substances go into the animals cells where they are combined with oxygen to release energy. This process is called cellular respiration and is a controlled form of burning, with food acting as the fuel.
The majority of animals are either herbivores who eat only plants, omnivores which eat both plants and other animals and carnivores which eat other animals. There are also scavengers that feed on dead matter. All animals, regardless of their lifestyle ultimately provide food for other animals. All are connected by food chains which pass food and energy to one another. 90 per cent of an animal’s energy is used to make its own body work and therefore food chains are rarely more than six links long.
