Wednesday 26 September 2018

Fuzzy nebulous object


Nebula is a latin word that means cloud or fog. It includes dust, fog, cloud or other astronomical object. Nebulae is any astronomical objects including galaxy beyond the milky way.

Andromeda galaxy is reffered as andromeda nebulae and spiral galaxy is reffered as spiral nebulae.

Nebulae are very big in size. Some may be hundred of light year diameter. From earth any nebulae may look very big, but not brighter. The brighter nebulae near earth is orion nebulae.

Nebulae produces by stars. Some of the nebulae is found to form by gas that is in interstelar medium.

Supernovae plays an important role in producing nebulae. supernovae explosion of stars throw some massive cloudy objects that forms nebulae.

Most of the nebulae found are diffusion nebulae. Diffussion nebulae have no exact boundary. Emission nebulae and reflection nebulae is such types of example of diffusion nebulae.

When lower mass stars undergo into stellar evolution, the final stage of steller evolution of lower mass stars forms planetary nebulae.



Monday 3 September 2018

Lorentz transformation


In physics Lorentz transformation is a transformation of co-ordinates between two co-ordinate frames that moves at constant velocity relatively each other.

Dutch scientist Hendrik Lorentz develops such types of co-ordinate transformation. For that reason such types of co-ordinate transformation is named Lorentz transformation with his name.

In co-ordinate transformation frame of reference is highly considerable. Frame of reference is divided into two groups. Inertial group and non-inertial group. Inertial frame of reference focusses on the  relative motion with constant velocity.




Grapes

Grapes Grapes are abundant of Vitamin C, antioxidant, menerals like calcium, magnessium, potassium. These abundance of nitrients provides a ...