Two women sleeping in a box? India is a teacher in China? Strange photo

I.. Photo taken in 1905. The image of a student from the University of Madras in India tying his hair to a nail in a wall to prevent himself from dozing off while studying late at night is familiar in ancient China.

II. Photo taken in 1929. A device for self-defense has been developed that allows a person wearing an armored vest to quietly pull the rope on his fingers and activate the barrel of a revolver located in the chest to shoot a bullet to kill the opponent when the person wearing the armored vest raises his hands to signal surrender. Resembles "Iron Man".

III. Photo taken in 1960. An Englishman demonstrated a great invention, the "mass shaving machine", which according to the demonstration advertised that it could shave many people at the same time, saving a lot of time.

IV. Photograph taken in 1916. A London woman rides a "balance bike" given to her by her husband on the streets of London. It is made in the USA and can be powered by both gasoline and electricity.

V: Photo taken before the 19th century. A traditional piece of furniture known as a "closed bed" or "box bed" is widely used in Europe. In winter, such a closed bed can also play a better warmth effect.

VI. Photo taken in 1929. In 700 BC, more than 1300 years ago, the earliest dental prosthesis unearthed in Egypt.

VII. Photo taken in 1940. Soviet soldiers used captured 17 German MG-34 machine guns against the Germans. The sound of these machine guns firing was deafening and often caused a psychological breakdown of the German army.

VIII: photograph taken in 1939. Low-drag aerodynamic car designed by German engineers.

IX: Photo taken in 1950. A child seat designed by a car company. In order not to bore the children in the car, they even designed a steering wheel for them that can turn freely.

X: Photo taken in the late 19th century. Shepherds in the steppes of the Landes region of France have developed this unique ability to walk on soft and dangerous swamps - sheep on stilts. In addition, stilts also provide shepherds with a wider view to observe the flock and protect them from thorns.

ⅩⅠ. Photo taken in 1950. A New York Tunnel police officer patrols the tunnel walls in a narrow-body track trolley with only two wheels. The rail trolley relies on upper and lower rails as support, has small balance wheels on the side near the wall to stabilize the body, and it is equipped with a gasoline engine as power.

XII: Photograph taken in 1925. A scientist has invented a strange helmet to help increase focus and concentration. According to the study, inside a closed helmet filled with oxygen, 95% of the noise is isolated, and the small diameter glass of the eye is meant to limit the wearer's gaze to a small range so that he is not disturbed by the surrounding things.