I don't have a mask, but i have a lot of mask knowledge。
For example, the n95 mask, n, is a measure (made by niosh in the united states) and 95 is not a model but 95 per cent. Lines such as “yy” on mask overpacks are standard numbers。
I not only wear masks, but also recognize false masks, which i may have to learn to make。

But in fact, an n95 mask, which attracts you most, is this: 3m。
What the hell is 3m
Some kind of abbreviation for quality control
Something like the national mask society
Neither. That's the name of a company。
The company acts in a low-key manner, yet its innovative spirit and contribution to people's daily lives is sufficient to be recorded in history。

No, it's written in history。
For example, when we were teenagers, we often read a story about chicken soup。
A scientist wants to invent a sticky glue, but after several attempts, he invents a sticky glue。
He had no idea what the glue was for. His invention seems to have failed. At this point, one of his colleagues saw his invention。
The colleague often went to church to worship, and he saw the choir's people putting a memoir piece of paper in the bible, but it was often down and was not convenient. So he's moving, thinking about this sticky glue, and if he puts it behind a piece of paper, can't he fix it
So the convenience sticker was born。

According to the chicken soup, this invention tells us that success is not instantaneous, and that a change of mind tends to be wasted。
But the story is better followed by this little, less sticky, yellow piece of paper, which not only sells lucha but also transforms the office culture。
Other effects, such as the siding that gave birth to the epoch-making modern poem, "penta":
"i ate the plums in the fridge, and they were probably you, keeping breakfast. Excuse me. They're so delicious, so sweet, so cold."

Even today, in the internet age, its impact is even greater。
A few years ago, the hammer was signed, and then it was customised for the androids, and now it's a lot of use
Signing or notte is already part of our thinking。
Back to this invention story itself. This scientist, and his poetic colleague, is an employee of 3m。
Yes, 3m is not a mask company, and the full name of 3m is indeed minnesota mining and manufacturing (minnesota mining and manufacturing company), and the mask cannot be hit with a pole。
It all started with the 1902 american gold rush. At that time, five young people came together and partnered in a mining company. Soon, the company proved to be a failure。

However, as in the case of 3m inventions decades later, they discovered the dawn of their own failure. They started producing sandpapers in response to the needs of workers。

Sandpaper is the 3m anchor, while its first transformation of the world product is transparent tape。
Transparent tape is based on a 3m-created segregation tape used in cars to help car mechanics better paint (previously without tape, it is easy to spray elsewhere)。
However, this product, introduced in 1925, offers an opportunity to change the world in response to the exact needs of workers。
That was the economic crisis between 1929 and 1933。
Against the backdrop of a depressed economy, low-cost and efficient tools for the repair of household goods have become an urgent need for every household. The 3m-modified car paints filled this gap with segregation tape。

Since then, transparent tape has become a household necessity。
A pair of scissors, accompanied by a tape, not only binds people to boxes that were broken during the great depression, broken furniture, but also serves as a tide-proof seal for autumn and winter holidays。
With a focus on the small details of life and a strong capacity for innovation, today, 3m has a market value of almost $100 billion, and its products permeate every corner of modern human life。
From convenience to sandpaper, to transparent tape, to subsequent carbon-free duplicate paper, audio tapes, projection systems, reflecting panels on highways 3m has developed almost 70,000 products with 118,000 patents。
As an american company, 3m entered china’s choice, selling masks, which is also related to the media’s “black china”。
With media such as cnn, the word “china” has been tied to “mog” for almost 10 years, and ordinary americans think of china first, then fog, as a reflection of conditions。
As a result, 3m seniors believed in the media and felt that selling masks to china would make a fortune. Thus, around 2013, 3m began selling fog masks to china。
Not to mention, your first fog mask must be 3m。

From selling fog-proof masks to this new coronary virus outbreak, the most popular n95, in the hearts of many chinese, the 3m company sells masks – an impression that is stereotyped。
3m has a well-known “15% rule”, which means that r & d can devote 15% of their working hours per week to studying anything they are interested in. As long as you have a good idea, you can apply to the company for funding without even considering the actual use of the product。
The company also provides that employees are not disturbed by superiors or managers during project research。
If he has the privilege of success, the company will give him success, and if, unfortunately, he fails after many attempts, he must also be assured that he is not subject to anyone's criticism。
On the basis of innovation, the inventor's 3m profoundly understood that a great invention never comes out of a strong mind, but from the inventor's love and imagination。
When amsterdam went to the moon, he was wearing boots inside the capsule, with 3m-made synthetic rubber on the soles。

A company that produces products for use in the world has finally made it to the moon in another way。
Today, on the 3m headquarters building in minnesota, the united states, it is clear:
Curiosity is just the beginning. It all starts with curiosity。
Yes, curiosity can really light the world。




