Wednesday, January 28, 2009

Plastic Flow


The ability for plastic to change shape and absorb impact without shattering is described as plastic flow. Plastics absorb energy instead of shattering. Plastics therefore are used instead of glass to make bulletproof “glass,” windshields, and eyeglass lenses. This property, although very useful, is also not well understood, or, at least, the characteristics of plastics which make this possible are not well understood. Currently research is being conducted to explore this property of plastics at the University of Wisconsin, Madison by chemistry professor Mark Ediger.


Professor Ediger is using nanotechnologies to examine the processes that plastics undergo at high impacts. Nanotechnology has made it possible to understand so much more about the world around us. Nanotechnology has provided new ways of understanding why computer technology works, new ways of visualizing bacteria, and new ways of creating models of behavior. At the nano-level behavior is less easily understood than at a macro level. At the high levels of impact, Ediger has reported that the movement plastics’ constituent molecules “increases dramatically…with molecular rearrangements occurring up to 1,000 times faster than without the stress.” Only recently, have scientists been able to examine molecular behavior on a grand scale and the rearrangements can actually be observed.


It is important to be able to observe the behavior in order to understand the behavior. And it is important to understand the behavior in order to know how the material will react under certain circumstances so that it can be used appropriately. More observation also can lead scientists to understand how a material will react later in its life after undergoing stresses. Ediger hopes to create models of stress on plastics, so that plastics can be better used in the future and so that the life of plastic parts can be extended.




References: http://www.nano.org.uk/news/nov2008/latest1706.htm
Stumble Upon Toolbar

38 comments:

tiktok said...

I love readding, and thanks for your artical.........................................

Anonymous said...

成人色圖片免費成人影騙免費成人電影觀看曼雪兒情色文學成人小說杜雷斯成人貼圖區一葉情成人影片區一葉情成人論壇一葉情貼貼片區一葉情貼圖片區,一葉情圖片區一葉情語音一葉情語音聊天一葉情語音聊天網一葉成人網一業晴成人一業情貼圖ㄧ葉晴貼片ㄧ葉晴貼片區ㄧ葉晴貼圖區一本道影片一本道線上觀看一夜情天室一夜情無碼影片一夜情貼圖區一夜晴貼片一夜晴貼圖片區一夜晴貼圖區一情夜一貼片一葉情論壇蜜雪兒免費小說 色ˋ情小說 玩美女人嘟嘟成人

Anonymous said...

thank for share, it is very important . ̄︿ ̄..................................................

Anonymous said...

世間是非,要如水泥地般水過則乾。......................................................

Anonymous said...

He that travels far knows much.......................................................

Anonymous said...

以簡單的行為愉悅他人的心靈,勝過千人低頭禱告。........................................

Anonymous said...

As a man sows, so he shall reap. ........................................

Anonymous said...

good~ keep sharing with us, please....I will waiting your up date everyday!! Have a nice day........................................

致念 said...

Thanks ~ ~ I will come back yo~................................................................

Anonymous said...

Necessity is the mother of invention...................................................

Anonymous said...

文章不求沽名釣譽,率性就是真的..................................................

于呈均名 said...

your english is incredible............................................................

Anonymous said...

傻氣的人喜歡給心 雖然每次都被笑了卻得到了別人的心 ..................................................

Anonymous said...

你不能改變容貌~~但你可以展現笑容..................................................................

萱祥 said...

好文章給我好心情,謝謝分享~~ .................................................................

Anonymous said...

在莫非定律中有項笨蛋定律:「一個組織中的笨蛋,恆大於等於三分之二。」.................................................................                           

Anonymous said...

生存乃是不斷地在內心與靈魂交戰;寫作是坐著審判自己。......................................................................

Anonymous said...

所有的資產,在不被諒解時,都成了負債............................................................

Anonymous said...

It takes all kinds to make a world.............................................................

Anonymous said...

安安!剛開始玩這個,來這裡逛一下^^............................................................

Anonymous said...

要拼才會贏,生活就像戰爭…什麼時候才有和平啊…>"<..................................................

Anonymous said...

唯有用熱情、用智慧去觀察事物,這事物才會把他的秘密,洩漏給我們............................................................

Anonymous said...

人生最可憐的是半途而廢,最可悲的是喪失信心,最遺憾的是浪費時間,最可怕的是沒有恆心。..................................................

Anonymous said...

良好的開端,已是成功的一半。.......................................................

Anonymous said...

Of two evils choose the least...................................................

Anonymous said...

來問個安,誰不支持這個部落格,我咬他.................................................................

Anonymous said...

甘巴嗲!祝你愈來愈好!............................................................

Anonymous said...

耐心是一株很苦的植物,但果實卻很甜美。.......................................................

家唐銘 said...

很有趣~~感覺很好的blog,祝您人氣長虹..................................................................

Anonymous said...

人生是一連串的課程,必須活過才能明白。.......................................................

Anonymous said...

感謝分享 功德無量............................................................

Anonymous said...

Necessity is the mother of invention.......................................................................

Anonymous said...

人類的聰明,並非以經驗為依歸,而是以接受經驗的行程為依歸。..................................................

Anonymous said...

Joy often comes after sorrow, like morning after night.. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Anonymous said...

生活總是起起伏伏,心情要保持快樂才好哦!!............................................................

江仁趙雲虹昆 said...

有夢最美啦~~加油!元氣滿點!...............................................................

Anonymous said...

時間就是塑造生命的材料。..................................................... ............

Teena Seguin said...

Read all the related Posts:


How to do Website Compatibility Testing (Made Simple)

7 steps to select Automated Software Testing Tools

64 Software Manual Testing Interview Questions

Why need Software Testing Tools?

Overview of Manual Software Testing

Embedded Software Testing - Overview

Automation vs Manual Software Testing

Standard definition of software testing

What parameters to consider for Performance Testing?