Physics in Daily Life

Physicists found the amazing detail of the universe, from the black hole radius to the subatomic particles that are all visible. What about on the outward appearance?

You may be surprised to discover the lack of explanation for many phenomena that occur in your daily life. Some of the most mysterious things may appear normal even in your eyes.

Bean

In the bowl of mixed nuts, Brazil nuts always seem to be at the top. This is known as the 'Brazil nut effect'. This phenomenon does seem unusual, but became one of the greatest mysteries of physics that has not been solved. Among the various items and ignoring gravity, the larger objects always on top.

Convection currents believed to play a role in the condensation of smaller particles. All of these possibilities contribute to the Brazil nut effect. But until now, no one and none of the computer simulations successfully explain it. In fact, physicists, astronomers and geologists to this day can not understand this phenomenon.

Foam

Washing, shaving, or drink soda or beer? When doing that, sometimes you can find the foam and we often get it. According to Douglas Durian professor of physics at UCLA, the foam is 95% air and 5% liquid. Gas in foam separating the liquid to form a matrix of tiny bubbles.

Unfortunately, until now there is no formula that can explain the nature of the foam. "Physics of foam have not been well understood," he said at the NASA Science.

Ice

Century and a half investigation could not determine why ice can make you fall. Scientists agree, a thin layer of liquid water on ice kelicinannya solid lead. However, until now there was no consensus on why it has a layer of ice.

Theorists argue, it arises as a result of contact with the surface which makes ice melt. You might expect there are those who blame, but until now, scientists have raised their hands for this.

Cereals

Cereals tend to congregate together or get out on the edge of the bowl. Scientists dubbed 'Cheerios effect'. This phenomenon also applies to anything that floats. Dominic Vella of Cambridge University and from Harvard University Laksminarayanan Mahadewan be the first to explain this.

According to them, this effect is the result of the geometry of the liquid surface. The surface tension makes the surface of the milk collected in the bowl because the water molecules are interested in milk glass, milk hollowed surface on the end of the bowl. The result, if it does not accumulate in the center, will be on the edge of the cereal bowl.

Magnet

Jearl Walker professor of physics from Cleveland State University explains, naturally magnetic field emanating from the electrical particles that make up atoms, mainly electrons. To understand the simple magnetism can still be done but not to the deeper.

Although physicists have 'quantum mechanic' who can accurately describe the behavior of particles, including magnetism, but intuitively, it is impossible to understand the true meaning of that theory. "It's just a feature of the universe and the mathematical explanations as an effort to complete the" homework "of nature and look for the answer," said Walker.

Static Electricity

Static shocks very mysterious. It is known, this happens when there is excessive negative or positive currents appear in the body and the shock when you touch something. Alternatively, static electricity can occur when the static electricity build up in something that you later touch. The cause is still unclear.

General explanation stated, the two objects hit bergesekkan electron in one atom of an object and make it an object to be too positive or negative. Both objects then electrocute each other. But why electrons flow from one object to another? It can never be explained.

Rainbow

Rainbow is formed from sunlight in drops of water in the atmosphere. These water drops act as a prism that separates light into component light and sends it to the 40-42 degree angle opposite the sun.

Scientifically, no longer a mysterious rainbow as an explanation of the rainbow has appeared since the advent of the 17th century physicist Isaac Newton. However, imagine how mystical rainbow before. In ancient Greece, for example, the rainbow is considered as a way to bridge the messenger of God created the Earth and sky.