The magic of reality / how we know reality?

How do we know that things exist? , Here you play five senses, sight, smell, touch, hearing, taste, ingenious job in convincing us on realistic things, rocks and mountains, waterfalls and sugar and salt, but can we just we could, to call something an expression of fact, so long as we can test this fact in one of our senses? , What about galaxies distant cosmic? What types of micro-organisms, like bacteria, can we say here, that this stuff doesn't exist.

Well what can we say about radio waves, infrared, and what about the cell in the human body, what about thinking and emotions and happiness and love, are these things? , Yes it exists in reality, but that stuff first existence depends on human brains.

* Than made up stuff?

Suppose you took a piece of something, for example, a piece of meat, and you cut this thing into two pieces, then took the two pieces, and you divide those pieces into smaller pieces, continue this process, you will eventually reach the small pieces too.

In ancient civilizations, in Greece, China and India, all these civilizations had reached the same idea, and anything that consists of four elements, namely air, water, fire, Earth, and Socrates has come to this idea, and are chopping things into small pieces, and cut up in Greek (Tomos), and to place trades (a) before any Word gives meaning of negation, and that the word (a-tomic) , mean something very small, and hence the word (atom) , And is the smallest possible part of things, and the iron Atom, the smallest possible portion of iron, but most material around us are not elements, but are compounds, and any group of atoms join together to form a compound called (molecule), like a water molecule.

But vary the nature of these things, on the one hand it's solid objects, or liquid, or gaseous things things, and all elements have privacy, but there is a single component and is carbon, is a very special, where he specializes in carbon material chemistry, nothing distinguishes this item from other items, And it's organic chemistry, while all other components fall under the category of inorganic chemistry.

* Day and night, winter and summer.

Subject human vitality, two types of tunes, I fast rhythm, and is daily interchange of night and day, and the second a slow rhythm, and is the annual exchange of winter and summer, and when you look into the Sun you see it moving from East to West, but the fact that the Sun is stationary and the Earth is moving.

* Rainbow

At first we need to understand how to make light, I deliver (Isaac Newton) led to the discovery of gravity, but he also came to discover the spectrum, and Newton discovered that white light is actually a mixture of different colors, where Newton in an experiment, where in the painting room in black, You cannot enter the light into the room, then Newton in making a small opening in the guise of a window, so that a ray of sunlight from passing into the glass surround cone shape, but that surround passing beam Cone, making multicolored beam, and here launched Newton on these rays, lines of the spectrum.

* When and how it all began

The scientists are working through examples, how about what could be the real world, where model (steady state) and form (the big bang), where he was a very stable situation model elegance, but in the end it turns out that the model was wrong, and the big bang model was proposed, And is that the universe began in a specific moment in time, in the image of a strange explosion, and studies on this model was validated this form consistently, and this model had at generally accepted by most scientists.

* What is an earthquake?

Imagine you sit quietly in your room, maybe read a book or watch tv, and suddenly you hear a deep voice is terrifying, and start the room shaking, and just minutes after tranquility and deep silence, when you start writing the book, a devastating earthquake hit the Caribbean island of Haiti, And DC (port Prince) very large destruction, and that about 230,000 people died, and a large number now living in makeshift tents, and the quake caused cracks in the crustal plates, or as a result of sliding plates place floor plates.

* Harmful things

Diseases, such as plague and malaria and diabetes, fever, are harmful things, but in fact exist, where old people believe in the four types of disease, and it's blood, phlegm, yellow, black, and it was the belief that good health is the result of a balance of these four types, and parasites, for example, pose the greatest threat to us, they include bacteria and viruses, and when Chen virus attacks in large numbers on our bodies, we are suffering from a severe infection of the flu virus, tuberculosis and cholera, and where in the body of a great natural defence decentralisation system, It is the immune system, but at the end of the conversation can say that reality is a couple of things are interconnected with each other, so that the earthquake causing epidemics and diseases, and day and night engaged in the movement of the Earth, and a linked rainbow light, human and here is the center of the circle, and is linked in all things, and these things are indeed.

The Magic of Reality

Richard Dawkins

#Reality