Questions

VOIP is an acronym for Voice Over Internet Protocol, or in more common terms phone service over the Internet.

Voice over Internet Protocol is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN.

Here in the given options, Skype is the only voice service that enables us to talk over internet.

Benjamin Franklin has long been credited with the invention of bifocal lenses and he was the first to wear bifocal lenses. He did not produce them himself but instead had some optician in London or France make them for him to overcome Presbyopia, a condition that Franklin suffered. He was tired switching between lenses for far and near sightedness. And that resulted in inventing Bifocal Lenses.

David Grossman has become the first Israeli author to win the 2017 Man Booker International prize for his novel “A Horse Walks Into a Bar”. The novel was translated by Jessica Cohen and is published in Britain by Jonathan Cape. The book is an ambitious high-wire act of a novel that shines a spotlight on the effects of grief, without any hint of sentimentality. Since 2016, the Man Booker International Prize awards both the winning author and translator £25,000. To be considered for the prize, books had to be translated into English and published in the UK between May 1, 2016 and April 30, 2017.

In the form of vinegar, acetic acid is known from very early times. It is got by oxidation of fermented liquors (10-15%, alcohol) by air under the influence of a bacteria called 'mycoderma acetic'