Kids Questions & Answers

The Schwarzschild Radius is a characteristic radius associated with every quantity of mass. It is a radius of a sphere in space, that if containing a corresponding sufficient amount of mass, the force of gravity from the contained mass would be so great that no known force or pressure could stop the mass from continuing to collapse in volume into …

The Saros Cycle is an eclipse cycle with a period of nearly 18 years, 11 days and 8 hours. The earliest discovered historical record of the Saros Cycle is by the Chaldeans (ancient Babylonian astronomers). It is very useful for predicting the times at which nearly identical eclipses of the sun and moon will occur. A complication with the Saros …

New research shows that hair turns grey as a result of a chemical chain reaction that causes hair to bleach itself from the inside out. The process starts when there is a dip in levels of an enzyme called catalase. Catalase shortfall means that the hydrogen peroxide that naturally occurs in hair can’t be broken down. So hydrogen peroxide builds …

Albert Einstein considered the idea of quantum entanglement, like much of quantum physics, to be ridiculous. The phenomenon asserts that two particles can be connected so that changes in one are instantly reflected in the other, even if those two particles are light-years apart. Despite its strangeness, reports of entanglement have been well-documented. Known as ‘the God effect’, entanglement is …

A voltage stabilizer is an electrical appliance used to feed constant voltage current to electrical gadgets like ACs and computers, and protects them from damage due to voltage fluctuations. It works on the principle of a transformer, where the input current is connected to primary windings and output is received from secondary windings. When there is a drop in incoming …

The PackBot Tactical Robot is deployed by the US in wars. It was first used by US ground troops in Afghanistan in 2002 to help clear caves and bunkers, search buildings and cross live minefields. They were also used in 2003 in Iraq in urban warfare and to search vehicles. By 2007, more than 800 PackBot robots were in operation …

The Marathon is a long, gruelling race which traditionally closes the Olympic events. It is taken from the amazing achievement of the Greek runner Pheidippides, who ran over twenty-six miles in four hours, taking news to Athens of the Persians’ defeat at the Battle of Marathon in 490 BC.

Formula One, also known as Formula 1 or F1, and currently officially referred to as the FIA Formula One World Championship, is the highest class of auto racing sanctioned by the Fidiration Internationale de l’Automobile (FIA). The ‘formula’ in the name refers to a set of rules that all participants and cars must comply with. The F1 season consists of …

These are robots that look like Volkswagen Beetle cars, only they have legs instead of wheels. They can scuttle across spaces and have the potential to help put out forest fires. They can be used in areas which can be quite dangerous for humans. These robotic Beetles were developed by the University of Magdeburg-Stendal in Germany.

It is piece of cartilage and its protective coating that separates the two nostrils in the nose. In some people it can get bent and thus irritate the nose linings. It can be removed by simple surgery.