Full Information about Resistance

Definition of RESISTANCE:

It is the property of the material by virtue of which it oppose the flow of electric current.

The Electrical Resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor. in other word it is The inverse quantity is electrical conductance.

Metal, Acid and salt solutions are good conductors of electricity.  Pure Metals like Silver, Copper, Aluminium, Gold are very good conductors.

non metals like Bakelite, mica, glass, PVC, rubber,dry wood are poor conductor of electricity.

UNIT OF RESISTANCE:

Practical Unit of resistance is ohm ( as scientist George Simon Ohm discover this ). a conductor is said to have a resistance of 1 ohm if it permit 1 ampere current flow through it when 1 volt potential difference impressed across its terminal. symbol of ohm is- Ω, Symbol of resistance is- R

there are many bigger and lower quantity of resistance there units are given bellow:

Mega-ohm (MΩ)- 1000000ohm

Kilo-ohm(KΩ)- 1000ohm

Mili-ohm(mΩ)- 0.001ohm

Micro-ohm(μΩ)- 0.000001ohm

How Ant talk to each other?

As we know Ants do not talk like us. So, How they let others knows when they have found a sugar cube or food for them, or when there is some danger?
Answer:-  Ants do have a language to communicate to each others. They use a another type of language namely Chemical Language. Instead of sound ants use a chemical to talk, name of this chemical is Pheromone . Ant release this chemical while they move, the other ants can detect these pheromones with the help of the tiny think antennas on their forehead. They can follow these chemical to food or even protect their friends and relatives at danger.

Area 51

Area 51 is located in the southern portion of Nevada in the western United States, 134 Km of Las Vegas.
Generally US Government that Area 51 is their secret air force Military camp but this is not 100% truth.  It was one of the US government’s worst kept secrets, until it was officially acknowledged by the CIA in 2013 and its location revealed.
At first, US government denied the fact that their is nothing like Area 51 and non-sense but afterwards they accepted and said that yes that is a air-force camp.
Area 51 is one of the most securest place in the world and no civilian man is allowed to enter this area. If any man is seen roaming, the man will be caught and he will be questioned.
Many people talk about Area 51. Among them some people say that Aliens are there at that place and research go on about them. some of them also say that Aliens are helping the US Government in Science, technology, etc, that is why US has such a high and modern technology and the most powerful country in the world. Some people widely say that they have seen Aliens and their Space-ship(UFO) from their eyes near Area 51 and they strongly believe that Aliens persists in that Area.
Before some years or so one Space-ship was crashed in that area and US Government took that UFO and started researching on it and that Space-ship had Aliens too. From that time, US Government had made relation with Aliens.
Some people say that US Government makes Nuclear weapons and do testing and demonstrations at that area.
No people know everything about this area except American's president and seniors defense officers.
You can get many videos in YouTube as proof about this fact.
People are most interesting about the fact that why that area has such a high security, that even in Google Earth the area is marked  black and it is such a high secret and in this area dangerous chemical unsafely damped.