A masterly use of chemistry and physics A little amount of appropriately prepared powder is poured in water polluted with phenol and cellulose. A bit of the sun and after fifteen minutes har... Read more
New techniques magnify images without requiring bulky zoom lenses Imagine giving a presentation to a roomful of important customers when suddenly the projector fails. You whip out your smart... Read more
Steganography: Speaking with silence SKYPE, a computer program that allows its users to have telephone-style conversations over the internet, is extremely popular. The service, owned... Read more