9 answers to things you wanted to know

Several unresolved questions!

Are things you wanted to know, but the answer was never presented in your way. Now you can review each and feel some doubts about your childhood or your present are resolved. Some are very interesting, others probably already could suppose them. In any case it is not nothing wrong a little information and curiosities about our bodies and our surroundings:

1. Why, if our blood is red, our veins are blue?

This answer is not as simple as expected: the light that passes our skin and reaches the vein, In this travel incoming light is both blue and red, but both have different wavelengths. Upon bounce, the loser is the blue light, that is why we see our veins at that tonality.

2. Why one can not distinguish the accent on certain songs?

This has to do with phonetics and rhythm, singers who are too thick accent are forced to speak as neutrally as possible. They do exercises to control the pronunciation of vowels and syllables adapt to the rhythm of music, which makes the issue even more and makes it harder to distinguish the accent.

3. Why still we do not really know whether tomatoes are a fruit or a vegetable?

Technically a fruit, because it carries the seeds inside. However, all treat it like a vegetable, because the tomato is usually served as a dessert. In 1887, en EE.UU, a tax was enacted to vegetables, but not fruits. Scientifically companies argued that the tomato is a fruit, because it comes from a flower ovary. But it judges them seemed too weird. The debate continues to this day ...

4. Why in the shower we have more creative thinking?

Somos más creativos en la ducha debido a que It is a space in which the mind relaxes, and it is in those moments when they arise novel ideas and thoughts. "Your brain is smarter when not command him to do - something that people occasionally discover showering" Nassim Nicholas Taleb.

5. Why is the sky blue?

The sky is blue because of the composition of gases, sunlight pierces the atmosphere and the ozone layer and they do a kind of filter that passes certain colors of light and others do not. The human eye captures those wavelengths and assimilates with blue, estas tonalidades van cambiando según cómo incidan los rayos de luz.

6. Why our fingers shrivel to bathe?

Contrary to what many may think, not wrinkle fingers absorb water. Los científicos han descubierto el motivo y es sorprendente: wrinkle our fingers being in contact with a liquid for ease of handling of the objects in that environment. The human body is able to adapt and that is why they become wrinkled fingers.

7. Why do we have eyebrows?

Before our face was covered in hair, Eyebrows have survived evolution for very specific reasons: They help us prevent obstacles disrupt our view, for example during rain or sweat, water is retained by the eyebrows and channeled towards the ends of the face. They are also an important detail in the way we express ourselves, uno puede inferir pensamientos o actitudes de otro mediante simples gestos faciales.

8. Why give us hiccups?

Hiccups are caused by a contraction of the diaphragm and intercostal muscles. There are several reasons that could give us hiccups, They may be both physical and psychological. Si uno modifica repentinamente el ritmo de inhalación y exhalación, that could be a cause, as for example when we eat too fast.

9. Why give us hangover?

Obviously, la primera respuesta tiene relación al consumo de alcohol. What happens in our bodies is the following: alcohol makes you urinate more, Consequently, we will deshidratando. The alcohol in the stomach also It stimulates the secretion of stomach acid, what makes us feel dizzy and nauseous. Another reason why we feel so bad is because drinking often makes dilate blood vessels, which can cause headache.

There are still many unanswered, but it is a first step ...

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