Sabtu, 28 September 2019

Who Invented Sticky Notes

Instead he accidentally created a low tack reusable pressure sensitive adhesive. Paul minnesota 3m is one of the biggest companies in the united states.

Vector Post It Logo

The adhesive side of a post it note magnified 555x on an sem in 1968 dr.

Who invented sticky notes. A post it note or sticky note is a small piece of paper with a re adherable strip of glue on its back made for temporarily attaching notes to documents and other surfaces. Post it notes started out as three inch squares that were canary yellow in color. Originally small yellow squares post it notes.

It is used colloquially for all brands of sticky notes. Today sticky notes can be found in a wide variety of sizes shapes and colors. Arthur fry born 19 august 1931 is a retired american inventor and scientist.

Who invented sticky notes. The sticky note was invented in 1974 but not sold in stores until 1977. They are well known for being the manufacturer of post it notes however theyre definitely not a one trick pony.

A low tack pressure sensitive adhesive allows the notes to be easily attached removed and even re posted elsewhere without leaving a residue. People all around the world use sticky notes every day. The word post it has become a genericized trademark.

The 3m company was initially skeptical about the products profitability but in 1980 the product was introduced around the world. Spencer silver a scientist at 3m in the united states was attempting to develop a super strong adhesive. Sticky notes are generally one of the most frequently purchased office products in the us with post it continuing to dominate the market.

Today post it notes are sold in more than 100 countries. Art fry didnt invent the sticky adhesive used on post it notes his partner spencer silver invented it but didnt know what to do with it. The post it note may have been a godsend literally.

In school at work and at home everywhere you go people have and use sticky notes all the time. The companys other brands like scotch and nexcare are just as famous and continue to fly off shelves around the world. No application for the lightly sticky stuff was apparent until frys idea.

He is credited as the co creator of the post it note an item of office stationery manufactured by 3m. Why it was not sold in stores until 3 years after is because the invention had flaws that needed a fix. In the early 1970s art fry was in search of a bookmark for his church hymnal that would neither fall out nor damage the hymnal.

As of 2006 post it products are sold in more than 100 countries.

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Senin, 23 September 2019

Why Are Chinchillas Endangered

One coat can take use up to 500 or more chinchilla pelts. As a result of active fishing their numbers declined and for a long time the chinchillas were listed in the red book.

Nature Picture Library Chinchilla Chinchilla Lanigera Portrait

Why chinchillas are endangered wild chinchilla populations have been threatened for centuries by human activity.

Why are chinchillas endangered. Owning a pet chinchilla was a luxury that not many could afford but it was undeniably tough not to be charmed by this little creatures adorable features. Their fur is so dense that up to 60 hairs can grow out of one follicle. Chinchillas are either of two species chinchilla chinchilla and chinchilla lanigera of crepuscular rodents of the parvorder caviomorphathey are slightly larger and more robust than ground squirrels and are native to the andes mountains in south america.

They live in colonies called herds at high elevations of up to 4270 m 14000 ft. All about the endangered and inexplicably adorable pet brewing a huge storm more than a decade ago in sunny singapore this small pet type came at a cost that seemed a tad indulgent for its size. One coat can take use up to 500 or more chinchilla pelts.

But long tailed chinchillas are mostly preserved in nature and they often become domestic pets. Historically chinchillas lived in an area that. Are chinchillas endangered.

The reason why chinchillas are endangered is because people kill them for their beautiful fur their pelts. The domestication of these cute animals saved them from. That leads to almost 20000 hairs per square cm 10 times more than an average adult person.

The endangered darwins fox. It is a social matriarchal animal native to the andes mountain range. Said to be a challenge for an.

This particularly affected short tailed representatives. The species original population was nearly exterminated due to poaching hunting habitat destruction competition from cattle and goats strip mining activities and deforestation for firewood extraction. Chinchillas have the thickest fur of an animal on land counting for around 60 hairs in one follicle.

Chiles most endangered mammals darwins foxes short tailed chinchillas long tailed chinchillas and pacific degus are critically endangered in chile. If you buy chinchilla fur you are not contributing to the endangerment of the species. The reason why chinchillas are endangered is because people kill them for their beautiful fur their pelts.

Chinchillas teeth are dark orange. Do not buy them. Why are chinchillas endangered.

The endangered long tailed chinchilla is a medium sized rodent with famously thick beautiful fur. However most environmentalists agree that the fur industry is inherently unsustainable and inhumane. Almost all chinchilla furs are now collected from captive bred chinchillas so the fur industry no longer play a major role in the decline of wild chinchilla populations.

However some poachers do continue to hunt chinchillas and this does affect the species ability to recover from being endangered. Do not buy them.

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