physics teaching resources

Energy Resources - The supply of energy to the mankind in the present day world is from many different sources. The different sources of energy are as follow..

The supply of energy to the mankind in the present day world is from many different source..

Water, being a vital resource for all living beings, is also an important source of energy. Hydropower supplies 6% of the world's energy needs. Moving water is highly energized. A hand held into a fast flowing stream can feel the pressure of water trying to push the hand alon..

In order to live and enable ourselves to do everyday work we need energy. The prosperity of a country depends upon the availability of energy. Huge amount of electrical energy is used to run the air conditioners, cold storage and other domestic appliances. A large share of energy is needed for tran..

Today most of our energy needs are supplied by the fossil fuels. In one hundred years coal will be the only one left as petroleum products may remain only for 3 to 4 decades. Little of stored energy will be left if we continue to use energy at the same rate. Fossil fuels are non-renewable. The ener..

Water, being a vital resource for all living beings, is also an important source of energy. Hydropower supplies 6% of the world's energy needs. Moving water is highly energized. A hand held into a fast flowing stream can feel the pressure of water trying to push the hand along. Overshot W..

. They are useful in showing areas of diseased and healthy vegetation. Healthy plants appear red. Young plants show bright red while those ready for harvesting appear dark red. Plants affected by drought and disease can be identified by the different color of their images compared with the dark red..

Hydro Energy - Water, being a vital resource for all living beings, is also an important source of energy. Hydropower supplies 6% of the world's energy needs. Moving water is highly energized. A hand held into a fast flowing stream can feel the pressure of water trying to push the hand al..

) Low transmission losses, as low as 0.1 db/km. (iii) Immunity to electromagnetic interference, which is an inherent characteristic of an optical fiber viewed as a dielectric wave guide. (iv) Small size and weight, characterized by a diameter, which is no greater than that of a human hair. (v) Rugg..