science is limited

The installation and maintenance of an OTEC power plant is very high and efficient commercial exploitation is difficul..

Even though wind energy is available in plenty, wind is not available at all times. It is unpredictable and not dependable. Hence to produce maximum amount of energy from wind, wind energy maps are prepared, which give us an idea of the average wind speed throughout the year at different places. ..

Resources which are in limited amounts and cannot be renewed are called non-renewable energy resources. Fossil fuels like coal and petroleum are some examples. Petroleum products are energy-rich components of carbon which have undergone anaerobic degradation with the help of sun's energy..

The effect of temperature has already been discussed earlier under limitations of ohm's law. In general for metallic conductors higher the temperature larger is the resistanc..

Consider a block of wood lying on a plane horizontal table. There is no force of friction as the block of wood is stationary. Push the block lightly with the hand. The block does not move because the force applied by the hand is exactly balanced by the force of friction acting horizontally in the o..

Suspensions consist of particles of a solid suspended in a liquid medium. Suspensions are systems with two distinct phases. The particles in suspensions are bigger than 100 nm to 200 nm across. The particles of a suspension may not be visible to the naked eye but are visible under a microscope. Sus..

Interferon injection may be administered by the physician to control the disease Adequate rest is required for the patient to recover fast Sugarcane juice, radish with jaggery are recommended Fats should be avoided and protein taken within limits..

Water is an essential factor in photosynthesis. The effect of water can be understood by studying the yield of crops which is the direct result of photosynthetic activity. It is found that even slight deficiency of water results in significant reduction in the crop yield. The lack of water not onl..

Selection of crops for rotation depends on soil condition, moisture condition, length of rainy season, type of inputs available (irrigation, fertiliser, pesticide, labour and machine power), risk involved, duration of crop (annual, biennial or perennial) and marketing and processing facilities. In..