As a part of human history and culture, tattoo has lasted for more than 2000 years. Tattoos in life are mostly incredible. Now many people have tattoos. Do you know about tattoos? As a chemical student, what tattoos do you know about chemistry? Today, let’s go to see the tattoos related to chemistry and put the chemical tattoos on our bodies.

The most chemical tattoo is the structural formula of various chemical substances. The geometric shape formed by the regular lines of the structural formula is full of certain aesthetic feeling, and the chemical substance represented by it has a deeper meaning, which is very suitable for people to express some specific symbols or implied meanings.

Serotonin, often with dopamine tattoos. Serotonin molecular formula c10h12n2o, chemical name 5-hydroxytryptamine, is also a neurotransmitter, improve the content of serotonin can improve sleep, calm people, reduce irritability, bring pleasure and happiness, bring more happiness. The tattoos of dopamine and serotonin mostly mean love and happiness.

Source: @aarontylertattoos

The original meaning of the word “Valkyrie” was “corpse eater”. Later, it gradually evolved into “woman who selects the war dead”. In addition, the so-called “dream lover who appears in front of heroes” image was given by later generations.

Valkyrie is the daughter of a king on earth, or Odin’s own daughter, or a virgin warrior chosen by the gods to serve the gods. They give the dead a wonderful kiss on the battlefield and lead them to Valhalla. The purpose of this is to expand the forces of the gods before the twilight of the gods to meet the needs of the battlefield.

Valkyrie is usually depicted as a woman on a winged horse, wearing a charred helmet. All the different forms of wing tattoos can be used to grasp the meaning of protection. The use of wings can also leave some amazing details on the tattoo. Today I’m going to show you Valkyrie Wings tattoos. Hope to inspire you.

Source: @amandaclemes

SPQR, as the acronym of Roman Republic, was still used as a symbol of Rome after Augustus established the system of head of state. It appeared in various forms on the coinage of Rome from the 12th century, and finally gradually fixed as SPQR or S.P.Q.R in the late Middle Ages. In addition, the emblem of the contemporary Roman city is still inlaid with the word “SPQR”.

The city of Rome has used the word “SPQR” on its emblem and other city signs for a long time. As early as the beginning of the 14th century, it has been recorded as a symbol of the city of Rome. In the 16th century, today’s shield shaped insignia began to take shape. In the middle of the 18th century, there were documents showing that the Roman residents at that time were proud and proud of the use of “SPQR” decoration in the city of Rome.

Source: @_pineyard_

Leonidas is a descendant of Hercules. It is said that Leonidas came from the Archean family. Leonidas may have won the Spartan throne after a series of struggles between 490 and 488 BC. Leonidas was a brave man all his life, and he would take the lead in every battle. In the second Bosnian war, because of being outnumbered, Leonidas and other 300 Spartan elite soldiers all died. Leonidas’ heroic performance in the second Bosch war made him a hero of ancient Greece.

The birth of the king of Sparta is not hereditary. It can only be obtained from thousands of competitors through their efforts to prove their strength and never give up spirit. Leonidas received harsh hellish training when he was young. At the age of 10, he began to learn how to be beaten passively, and then he learned how to fight back. After years of continuous training, he not only developed his strong strength, but also acquired super martial arts and strong teamwork skills. Leonidas experienced the test of celibacy and inhuman survival in the wild, and the severe challenge of confronting the wolf and killing him. Finally, he won and became the king of Sparta.

Source: @108tattoo

Willy Wagtail is a unique kind of fantail flycatcher. It is like a mixture of white Wagtail and fantail flycatcher. It is different from other fantail flycatchers. Willy Wagtail is a black-and-white fan tailed flycatcher, which is larger than other fan tailed flycatchers.

Willy Wagtail likes to move on the open ground rather than in the forest like other fan tailed flycatchers. When it stops, its tail swings like a Wagtail, but the way of swinging is different from that of a Wagtail. Willy Wagtail, a black-and-white flycatcher, is found all over Australia and is very common in cities and wilderness.

Source: @avalontattoo