CITRUS

Saturday, May 23, 2015

The International year of soil aims to raise awareness of why soils are important food security and eco-system, which comprises all plants and animals in an area.

The UNITED NATIONS (UN) also declared 2015 as the year of light and light based technologies.

The International Year Of Light And Light Based Technologies(IYL 2015) aims to raise global awareness of the social, economic and developmental role of light and optical technologies.

Here is two videos about the Internationals Year Of Soils and International Year Of Light and Light Based Technologies.

2015 : UN INTERNATIONAL YEAR OF SOILS, LIGHT AND LIGHT BASED TECHNOLOGIES.

11:57 PM

2015 : UN INTERNATIONAL YEAR OF SOILS, LIGHT AND LIGHT BASED TECHNOLOGIES.

"Fire Rainbow" are neither fire, nor rainbows, but are so called because of their brilliant pastel colors and flame like appearance. Technically they are known as circumhorizontal arc- an ice halo formed by hexagonal, plate-shaped ice crystals in high level cirrus clouds. The halo is so large that the arc appears parallel to the horizon, hence the name.

The conditions required to form a "Fire Rainbow" is very precise - the sun has to be at an elevation of 58° or greater, there must be high altitude cirrus clouds with plate-shaped ice crystals, and sunlight has to enter the ice crystals at a specific angle. This why circumhorizontal arc is such a rare phenomenon.

Here is video containing rare pictures of fire rainbow.