Schlieren Optics: Making The Invisible Visible

Harvard Natural Sciences Lecture Demonstrations conducted a demonstration of an optical technique that allows us to see small changes in the index of refraction in air, which made visible by Schlieren Optics. A point source of light is reflected from a concave mirror and focused onto the edge of a razor blade, which is mounted… Continue reading Schlieren Optics: Making The Invisible Visible

Researchers Discovered Oldest Copy Of The Holly Quran

Researchers at the University of TĂĽbingen have discovered a manuscript of the Holly Quran, beautifully written in Kufic sometime between 649 and 675 AD. It was donated to the university in the 19th century, and was written about 20 to 40 years after the death of the prophet Muhammad. This makes the manuscript one of… Continue reading Researchers Discovered Oldest Copy Of The Holly Quran

A Jetpack That Helps Soldiers Run Faster

Engineer Jason Kerestes from Arizona State University have created a working prototype jetpack that attaches to a soldier’s back and helps them run faster. The 4MM project’s aim is to enhance the speed of the wearer and to break the four minute barrier with ease. Watch the video below.