Ocean Wave Energy
Ocean Wave Energy Ocean waves have both kinetic and potential energy. There are various devices for converting wave energy into other forms of energy - such as mechanical motion or fluid pressure. The devices are classified into large-scale offshore devices and small-scale shoreline devices. Most of the development is on large-scale offshore devices, such as the oscillating water column (OWC). China has constructed a 3 kW OWC shoreline device, which has an artificial gully and a Wells turbine. India has built a 150 kW OWC caisson breakwater device and a Wells turbine. The technology is still under development in several countries. The inherent characteristics of wave power are that the energy is diffuse; wave forces are enormous during storms; waves vary in size, wavelength and direction depending upon wind conditions; the mean sea water level changes with the tide; and the available energy varies over a wide range. Therefore, the design of such a device is extremely difficult, and each solution will require intensive testing. Generally, a large number of devices will be required to generate an appropriate amount of electricity. The latitudes between 40-60 deg are suitable for siting these devices, where the highest concentration of wave energy occurs. The west coasts of Europe and the US, and the coasts of New Zealand and Japan are particularly suitable for wave energy
An ecosystem is localized group of interdependent organisms together with the environment that they inhabit and depe
An ecosystem is localized group of interdependent organisms together with the environment that they inhabit and depend on. The natural world is in a constant state of flux. Changes can be seen at all time-scales, from the shortest to the longest. Short-term changes, which are observable by people, are often cyclical and predictable: night and day, the monthly cycle of the tides, the annual change of the seasons, and the growth, reproduction, and death of individuals. Viewed at this level many ecosystems, when not disturbed by humans, appear superficially to be stable and unchanging, maintained in equilibrium by the "balance of nature". The sun is the original source of energy in an ecosystem. Producers (plants) convert the light energy into chemical energy, storing it in their cells. When primary consumers (herbivores) eat the producers, the energy changes into a form that can be stored in animal cells. Secondary consumers (carnivores) transform the energy once again. Decomposers may occupy several positions in the pyramid, both receiving energy from decaying plants and animals and supplying it to detrivores and fungus-eaters. Since energy is lost in each step, populations are necessarily smaller at each higher level of the
Shooters strategy: The sectors we are planning to invest in are:
Shooters strategy: The sectors we are planning to invest in are: Mining: there are changes taking place that would see to the rise in prices from the many mergers and take-over taking place in the industry, which normally leads to potential growth in the industry and perfect for investments. Energy: since the effects of the hurricanes in the US there are changes taking place in this industry for alternatives to the prominent Oil industry. As such, we believe this will result in increase in alternative energy sources such as coal, natural gas, and the like and would be the prefect time to invest in these industries. However, we will continue to monitor the oil sector despite its volatility there still seems to be opportunity for growth in this industry. We feel diversification is important and thus we plan on using many investment types to balance our portfolio by investing in the following types of markets: bond, mutual funds, derivatives, forward markets, and international
What affects how much respiration yeast does?
Brief: What affects how much respiration yeast does? Background knowledge: The temperature affects how much respiration yeast does. The higher the temperature the more respiration will occur, which will produce co2 which will make more bubbles .The heavier the weight or the more water you have, more respiration will occur. Input Variables: I would change the amount of sugar, yeast, temperature, water and oxygen. Prediction: The higher the temperature the more respiration will occur. Explanation: When you up the temperature the molecules are getting close together and more energy is produced. Apparatus: test tube Delivery tube Stopwatch Kettle Thermometer Yeast Sugar Water Mixing tool Weighing scale
Is It worth Composting?
IS IT WORTH COMPOSTING? Figure 1 Steaming Compost Heap Figure 2 An example of home
