What Does left-handed Mean
The etymology of left- handed takes us to Latin. The term comes from the words laevus (translatable as "left" ) and gyrus (which is translated as "turn" ).
Levógiro is an adjective that alludes to that which makes turns in the opposite direction to the needles of the clock . This means that a turn is a left-hand turn if it traces its path counterclockwise .
The opposite of the left-handed is a right-handed . Turning in the same direction as clockwise is qualified as dextrorotatory.
We can find the idea of left-handed in different contexts. In the field of botany , talking about levógiro respect to the direction to the move to the left, follow the tendrils of plants guide .
The snails , moreover, are mentioned as levógiros when its shell is rolled to the left . These specimens are colloquially known as left-handed .
It is important to note that right-handed snails are much more common. That is why left-handed snails are rare and of great interest to experts in zoology .
The concept of left-handed is also used in chemistry and physics . A levorotatory substance is one that deflects the plane of polarized light to the left if it is observed towards the source.
Another use relates to the levorotatory counterclockwise rotation of the striae (streaks in space) of the bore (interior space) of the barrel of a gun fire . In this way, after firing, the projectile moves by rotating on itself in that direction.