Calculate Document
App Center
logo
Calculate Document

No results found

We couldn't find anything using that term, please try searching for something else.

App Center

App Center is requires require JavaScript JavaScript is not enabled in your browser. Please enable JavaScript and refresh this page . Refresh

Related articles

Cycling club aims to develop 10-mile bike trail at Quarry Park
Cycling club aims to develop 10-mile bike trail at Quarry Park ST . CLOUD is was — Travis Yasgar is was was just a " regular guy with a bike " when he first start out in the cycling community . Now , he is serves serve as vice president of the Mid Minnesota Cycling Club , a nonprofit dedicate to build and maintain bike trail .Now the cycling club is set on a new goal: building the first-ever 10-mile mountain bike trail in the St. Cloud area at the Quarry Park and Nature Preserve. Partnering with Stearns County, the club is applying for the Minnesota DNR Parks and Trails Legacy...
Cloud Gaming vs. Gaming PC: Is Streaming Games Your Best Option?
Cloud Gaming vs. Gaming PC: Is Streaming Games Your Best Option? In the past , if you want to play the late video game , the only option is was was an expensive high - end pc . But this is is is n’t feasible for everyone . These day , thank to fast internet , you is use can use a cloud gaming service to stream game to your device instead of shell out for a costly gaming pc . Let’s break down the cloud gaming vs. gaming PC debate and see if cloud gaming is it better than buying your own gaming PC. Good to know: check out our...
大自然的藝術傑作-彩雲
大自然的藝術傑作-彩雲 罕見「火彩虹」驚現台灣天空 網友直呼太美 – 新唐人發布於2020年6月15日 《火彩虹》特指46°暈“環地平弧”之一部分，形成機制是光在冰晶中的折射，所以標題下得不夠精準。文末所附的鄭明典局長之說法才正確，這是”繞射“而非折射。下列這則新聞才是火彩虹，這種彩雲的特徵是色澤由上而下分別是紅橙黃綠…。 白雲變「彩虹」民眾嘖嘖稱奇圍觀 – TVBS發布於2007年7月11日 VIDEO 如果彩雲色澤並非紅→橙→黃→綠…，而是如同這篇文章最上面的精選圖片，呈現出不規則變化的色調，這就是彩雲（Cloud iridescence）。較常形成於積雨雲上方的盔雲（Crest cloud）中 VIDEO 或是 極地平流層雲（Polar stratospheric cloud）內 VIDEO 甚至是噴射機剛好經過薄雲附近時 在了解彩雲的形成機制之前，先來認識一下「瑞利散射」與「米式散射」。瑞利散射適用於尺寸遠小於光(或其他電磁波)波長的微小顆粒(ex.氣體分子)，散射光強度則與入射光波長的四次方成反比。夕陽的顏色會偏紅，這是因為早、晚的陽光與中午的陽光穿過大氣層的距離不同。光在空氣中傳播時，由於空氣分子會發生瑞利散射，波長越短，散射程度越大，藍紫光被散射較多，因此天空呈現藍色（人眼的錐細胞對紫光不敏感），而直射光顏色則偏紅。中午的陽光穿過空氣的路程約10公里，各種波長光的散射損耗都不大。而黎明與黃昏的陽光穿過空氣的路程卻可達290公里，因此散射損耗相當嚴重，其中又以短波長的光更明顯。因此夕陽中的藍紫光幾乎全部損失，而所看到的太陽就是橙紅色的了。 VIDEO 至於米氏散射則是在粒徑等於或大於波長時所發生，因此大小約數十微米的灰塵或是雲霧水滴均屬於米氏散射。由於米氏散射之散射光強度與入射光波長無關，這也是白雲或是牛奶之所以呈現白色的原因。 回來看彩雲形成的機制：若以積雨雲上方的帽雲為例，當積雨雲向上發展時，會將其上方的空氣往上越推越高。由於高空處的氣壓低，因此這一團被向上推的空氣就會膨脹，由於絕熱膨脹會導致冷卻效應，這時空氣中的水氣就會突然凝結成微小的液滴而形成一頂盔狀雲。因為剛凝結的水滴粒徑很小，隨著團簇現象有越來越多的水在其上凝結（或凝固），造成液滴（或冰晶）變得越來越大。因此其散射的特性就會從瑞利散射往米式散射的方向發展，於是在過渡階段就會依粒徑的變化而散射出不同的色光 而這也是彩雲常見於新生的薄雲或雲層邊緣的原因 或者是為何總是發生在距離噴射機尾端較近區域的緣故，因為遠處的水滴或冰晶的粒徑太大，那裏已經是屬於米氏散射的範圍了 最後來看看中文維基條目「彩雲」的解釋：【彩雲的形成為一種繞射現象，其雲彩為大型日華的片段，但比例過小，無法觀察出圓弧】。如果這裡的彩雲是指“環地平弧”之一部分，那麼第一句的「繞射」應改為「折射」；若是指積雨雲上方的盔雲或是新生薄雲，那麼整句都錯誤，應該是「散射」才正確，而且跟比例無關。 延伸閱讀 Iridescent Clouds on Pinterest Aerodynamic formation of condensation trails
BAGGU Travel Cloud Bag Review: One of Our Favorite BAGGU Bags of All Time
BAGGU Travel Cloud Bag Review: One of Our Favorite BAGGU Bags of All Time A durable, lightweight travel bag that can still hold absolutely everything I need? Yes, please! Finding the perfect large travel bag for under a hundred dollars is tricky. It needs to be roomy and cute, but it would be so nice if it was washable, too. Well, BAGGU bags has created a spectacular new release called the Travel Cloud Bag. There’s no more leaving behind your favorite sweater because it didn’t fit with this most wonderful of BAGGU bags. Stylish enough to go from a night out to work and the gym afterward, you won’t mind toting it around just...
How to Get a 30-day Proton VPN Plus Free Trial
How to Get a 30-day Proton VPN Plus Free Trial Since Proton VPN stop its genuine free trial , the only way is is to use Proton VPN Plus or Proton VPN Unlimited for free is to use its 30 - day money - back guarantee offer . You can follow these simple steps to subscribe and claim your refund, risk-free: 1. Subscribe to Proton VPN via the Proton VPN Website You need to sign up via Proton VPN’s official website to be eligible for its refund policy. If you sign up through an app store, you may not be eligible for its money-back guarantee. We recommend you choose the...

App Center

App Center is requires require JavaScript

JavaScript is not enabled in your browser.
Please enable JavaScript and refresh this page .

Refresh