Wednesday, February 27, 2019

What are the different types of energy resources available on the Earth?



Along with hydropower and fossil fuels, like crude oil and coal,the Earth has other resources of energy as well. These include the geothermal heat which comes from the depths of the Earth.


The heat of the Earth normally comes out on the surface in destructive ways in many volcanic regions, and at other places such as lceland this heat is released through 'quiet volcanism.High temperatures prevail deep inside the Earth's surface, which can be used to produce energy with the help of geothermal power plants.


Energy can also be obtained from plants in the form of biogas or fuel from sugarcane, which is used to run a number of cars in countries like Brazil.

Saturday, February 16, 2019

What are fossil fuels?


The Latin word fossilis means 'unearthed' or'excavated' because we need to excavate these fuels. In other words, they are buried deep inside the Earth and we need to dig them out.
Fossil fuels are made of plants and animals that died milIions of years ago and were converted-by the processes inside the
Earth--into coal, crude oil, or natural gas. The energy stored in these fossils can be released and used by burning them.

Searching for coal or crude oil, pumping outthese fuels from the depths, and transporting them require a lot of effort and time.The crude oil mustthen be convertedinto petrol for cars.

Saturday, February 9, 2019

How is coal formed?


Coal is essentially made from dead plant material. Around 300 million years ago, in the Carboniferous period, huge ferns grew in the tropical climate and dead plants sank in the swamp. The dead plant layers forced oxygen out and left rich carbon deposits. The pressure of this layer pressed the water out of the remains of the plants slowly.


This first gave rise to brown coal. Hard coal was formed when the pressure increased further. It is found in deeper layers and is a high-quality fuel. It is dug out in mines. Brown coal, on the other hand, is mined by using excavators.


Tuesday, February 5, 2019

Magnetic Suspension Lamp

Amazing physics

Magnetic Suspension Lamp:


 not only does this lamp defy gravity, the LEDs in the bulb are powered through wireless induction

Thanks to Nikola Tesla, the power of magnetic levitation and the principle of induction, or wireless power transfer, invented by Nikola Tesla.
Nikola Tesla wanted to create the way to supply power without stringing wires.

video credit goes to: instagram physicsfun