The invention of wartime service was extremely prevalent when peace

You will be surprised to know the story behind these very familiar everyday items.

People often say: "In the hard to see the wisdom". In the miserable hardship of World War I, people created simple items to solve the urgent needs of the time. But it turns out, they are still used until now.

Here are a few stories about the origins of unexpectedly invented items - which are familiar to us.

1. Sunlight lamp

Thanks to this invention, it is important to understand the importance of Vitamin D in the Sun.

In wartime, Germany's economic conditions were extremely difficult, food was scarce. For poor families, many children suffer from malnutrition and rickets due to lack of vitamin D.

To address this situation, Dr. Kurt Huldschinsky decided to use ultraviolet phototherapy for his young patients. After a while, their bones became stronger.

The experiment was successful and was circulated widely throughout Germany and throughout Europe. Also, thanks to this invention, it is important to understand the importance of Vitamin D in the Sun.

2. Vegetarian sausage

Friedenswurst - vegetarian sausages.

As mentioned above, in wartime, food is an extremely scarce item of food in Germany. At that time, Konrad Adenauer, Cologne's mayor had devised a kind of bread made from flour, barley and cornstarch.

After a few tests, he found that soybeans could replace meat in some dishes. And so the "Friedenswurst" (called vegetarian sausage) is born.

The Germans do not require a patent for this invention because in fact it is not a sausage. However, in June 1918, King George V of England gave a patent to Adenauer for creating a great food.

3. Tea bag filter

Tea bag filter comes from the idea of ​​containing tea in small bags.

At the beginning of the 20th century, tea was still shipped in heavy wooden boxes. In order to reduce costs, in 1908 an American merchant named Thomas Sullivan came up with an idea to put tea in small cloth bags.

People at that time did not understand what cloth bags were used for, so they even included tea and filter bags into the cup and realized that it was more convenient.

Also from this idea, today tea is wrapped in paper filters.

4. Zipper (zipper)

The US military has paid attention to this invention and used it in their uniforms and shoes.

The idea of ​​creating a kind of scissors could have been around since the 1860s, but it wasn't until the early 20th century that it was sewn into clothes.

Gideon Sundback, head of design for Universal Fastener, created something he called "hookless".

The US military has paid attention to this invention and used it in their uniforms and shoes. Later, the designers also started using zippers in casual clothes.

5. Stainless steel

During wartime, stainless steel was used in aircraft engines because of its lighter weight than regular steel.

During World War I, British troops went to the metallurgical house Harry Brearley to create a metal that could withstand the heat when fired.

Brearley began experimenting by adding several different elements to steel, but all attempts failed.

However, during the study, he noticed that to cope with the British wet climate, it was necessary to add chromium to the mixture, and stainless steel was born there.

During wartime, it was used in aircraft engines because of its lighter weight than regular steel. When the war ended, stainless steel was used in kitchen utensils, medical supplies or even jewelry.

6. Sanitary pads

War-era sanitary napkins.

When Ernst Mahler and James Kimberly visited paper companies in Australia and Germany in 1914, they found a good absorbent material and were cheaper than cotton. Both brought them back to the United States and filed a patent with the name Cellucotton.

When US troops entered combat in 1917, they were used to bandage soldiers in the front lines. When nurses got used to Cellucotton, they also realized they could be used for another "purpose" (which women still use today).

About two years after the war ended, Kimberly - Clark noticed how the nurse used tampons, and then created a "cult" product called Kotex.

Since then, sanitary napkins have been "upgraded", developed with many designs, shapes and used by women to this day.