With 3D movie being the latest craze in entertainment many people are interested in understanding how 3D movies work. To understand this you need to have a basic understanding of how your eyes process what they see and allow you to see in 3 dimensions. When you look at an object your left and right eye see slightly different perspectives of the same object. Your left eye will see more of the left side of the object and your right eye will see more of the right side of the object. This information is then combined by your brain to allow you to see the object in 3D. The same principle is used to create 3D movies.
A volcano is a fissure or crack in a planet’s surface through which molten lave, gases and ash erupt from below the planet’s surface. The word volcano comes from the name of the roman god of fire Vulcan. The cone that surrounds the fissure in the planet’s surface is built up of lava. A volcano is considered active if it vents lava, gas, or generates seismic activity (earth tremors). Dormant volcanoes are ones which have not erupted for many years but still have the potential to do so. Extinct volcanoes are those which have lay dormant for 100,000 years or more. There are at least 3 different types of volcano these are; the shield volcano, the Strato volcano and the Caldrea volcano.
A hurricane is a large slow moving storm that is characterized by strong wind gusts and heavy rain. They develop in areas that are close to the equator where monsoonal lows commonly develop. In the northern hemisphere hurricanes spin in a counter clockwise direction. In the southern hemisphere a hurricane is known as a cyclone and spins in a clockwise direction. They are also called typhoons when they develop in the area around Japan and Asia. Hurricanes activity peaks in the late summer when the weather and water temperatures are perfect for hurricane formation.
A tornado is a naturally occurring severe weather condition. It is characterized by a funnel shaped cloud extending from a cumulus cloud or cloud band towards the ground. The base of a tornado is often encircled by a cloud of dust and debris. Most tornadoes do not last very long and are not very strong. There wind speeds can range from less than 100 miles per hour (177 km/h) to more than 300 mph (480 km/h). Tornadoes also range in size from small tornadoes that are approximately 250 feet (80 meters) across to extremely large storms that can be more than 2 miles (3 km) across. Larger tornadoes are more likely to have contact with the ground for longer periods of time and are thus more destructive than smaller storms. Tornadoes have been sighted on every continent of the world except for Antarctica. Tornado alley in the U.S.A hosts the most tornadoes each year.
It is amazing to watch a plant grow from a tiny little seed into a full grown tomato bush, daffodil, wheat crop or hedge. But how exactly do plants grow? What do they need to blossom from that little seed you planted to a mature plant? Read on to find out.
Solar power is becoming a fast growing industry with many everyday people choosing to install solar paneling on their roofs. It a clean and efficient way to harness energy that does not require the burning of a fossil fuel such as coal, oil or gas. Solar power is also used to light streets, power satellites and in small electronic items such as calculators. Have you ever wondered how solar panels work? Read on to find out.