Saturday 23 June 2018

How to check the credibility of a website

Fake news, fake products, fake application, every field is now having some fake things.
There are several sites which are fake over the web and peoples are using it unaware that it is safe to use or not.
let me tell you What is happing:-
Suppose you want to buy a product which is not available in the market and you really need the product, You Google the product name and find that it is available online but wait before check out Check the Credibility of the site


How to Check the Webpage is Genuine

1.Check the URL is correctly spelled or not


Sometimes what happens, Original Site has already registered their domain name with the company name in each possible extensions such as example.com, example.co.in, example.de, example.us etc so that no third-party able to register it and exploit its customer. so the Fake Webpage Owner uses a similar type of URL like exampl.com exmple.com etc.

Read full Article Here

Saturday 18 March 2017

"Anechoic chamber" at Orfield Laboratories in South Minneapolis

An anechoic chamber ("an-echoic" meaning non-reflective, non-echoing or echo-free) is a room designed to completely absorb reflections of either sound or electromagnetic waves


They are also insulated from exterior sources of noise. The combination of both aspects means they simulate a quiet open-space of infinite dimension, which is useful when exterior influences would otherwise give false results.


Anechoic chambers, a term coined by American acoustics expert Leo Beranek, were originally used in the context of acoustics (sound waves) to minimize the reflections of a room.

 More recently, rooms designed to reduce reflection and external noise in radio frequencies have been used to test antennae, radars, or electromagnetic interference.


Anechoic chambers range from small compartments the size of household microwave ovens to ones as large as aircraft hangars

The size of the chamber depends on the size of the objects to be tested and the frequency range of the signals used, although scale models can sometimes be used by testing at shorter wavelengths (higher frequencies).



The amazing fact about this chamber that you can hear you heart beat, blood flow in you brain.
and working of your internal organs.

The chamber is 99.99% sound absorbent

The longest time anyone could stand to be inside is just 45 minutes.

  


for more information vist wikipedia.

keep updated for more such information.