Before the invention of jet aircraft, aircraft were powered by fuel piston engines. When the engine works, the propeller in front rotates at high speed, which gives the power for the arrival and advance of the aircraft. However, this kind of piston aircraft has a disadvantage, that is, it is difficult to improve the speed of the aircraft.

The invention of the real jet aircraft was inseparable from Frank whittle. In the late 1920s, whittle found the limitations of the piston engine, so he came up with the idea of using the jet generated by the engine to drive the aircraft. Today we collected some jet tattoos. I hope these tattoos can inspire you.

Source: @a978lin

For their favorite car brands, most car lovers have at least one T-shirt, pen or hat with their brand logo. But some unusual car lovers choose to commemorate their favorite brands in a more lasting way. For example, leave patterns related to these car brands on the skin in the form of tattoos.

The price of the models made by Volkswagen is easier to accept and popularize, so it is easiest to produce a popular culture among the public. At the same time, the design of Volkswagen has both classical and modern colors, which is convenient for these car lovers to tattoo on their bodies. Today, we collected some Volkswagen tattoos. Come and have a look with me.

Source: @alexsunflowertattoo

The chevron consists of an upward arrow. Up to four arrows can be seen in a row, but not all chevron tattoos have the same number of chevron patterns. Today we have collected some unique chevron tattoos. I hope these tattoos can inspire you.

In tattoos, the chevron symbol is one of the most popular patterns. The chevron and its number in most cases represent the rank of a particular member of the army or other armed forces. A chevron sign indicates that the person is a soldier or corporal. Two chevron signs indicate that this person is a corporal. Three chevrons indicate that they are a sergeant, and four chevrons indicate that they are a higher-level sergeant.

Source: @23chun_li_23

Referring to one of the most versatile scientists in the world, he is neither Newton nor Einstein, but Leonardo da Vinci, who has been mistaken by many people for only painting. To sum up, Leonardo Da Vinci’s life is “the magical life of genius”. He is not only one of the greatest painters in the Renaissance, but also the greatest scientist and inventor in human history.

Leonardo da Vinci’s academic research involves various disciplines and fields. There are more than 6000 pages of manuscripts preserved in future generations, and there are still many advanced ideas even today.

Source: @aikortiz

Venus flytrap is a perennial herb native to North America. It is a very interesting insectivorous plant. Its stem is very short. There is an insect trap similar to “shell” at the top of the leaf, and it can secrete honey. When a small insect breaks in, it can clamp it at a very fast speed, digest and absorb it. It is said that because there are regular bristles on the edge of the leaf, it feels like Venus’ eyelashes, which means “Venus’s fly trap”.

Venus flytrap is a kind of vascular plant. It is a very popular insectivorous plant with complete roots, stems, leaves, flowers and seeds. Its leaf is the most important and obvious part. It has the function of catching insects. It has obvious thorn hair and red sessile gland parts. It looks like a big mouth with open teeth and claws.

Source: @5thlayerstudios