Water locks move ships between different water levels. The density of water is the driving force behind these mechanisms. The systems work via valves and gates that control density currents in the water and subsequent movement of vessels.
Words: 435 Downloads: 0 Category: Environmental By: WonderwandarocksThis article discusses the sheathbill, and Antarctic bird with interesting habits. It covers the natural history both species black- and white-faced species. This article is of interest to anyone who enjoys nature and bird watching.
Words: 550 Downloads: 0 Category: Environmental By: Jackie CarrollThe sun generates enormous amounts of heat on a continuous basis. Some of this heat reaches Earth and influences the climate. This is evident through an examination of how the atmosphere traps radiation (heat energy) and an understanding of the water cycle.
Words: 419 Downloads: 0 Category: Environmental By: WonderwandarocksMagnetism is a property within substances that causes the substances to either repel or come together. Dissecting magnetism requires looking at what is going on within the substances at the atomic level. In fact, magnetism happens because of the subatomic particle, the electron.
Words: 425 Downloads: 0 Category: Environmental By: WonderwandarocksOctopuses are intelligent creatures which can learn, memorise, think, adapt to different situations and solve problems creatively. They can differentiate between patterns, shapes, sizes and colours. They can also mimic and play.
Words: 320 Downloads: 0 Category: Science By: Anahat Khehra SacharThis article briefly describes evidence of intelligence in octopuses. It draws upon recent research on the octopus´s ability to create memories and learn by observation. The article also explains how the octopus intelligently uses its physical attributes to evade its predators and capture its prey.
Words: 300 Downloads: 0 Category: Science By: Vivian Atwell