No cell signal, no Wi-Fi, no problem
Viral ( ) dance memes ( ) and dance challenges on TikTok largely bypass ( ) Green Bank, West Virginia. So do viral sensations like augmented reality filters ( ) on Snapchat and Instagram.
And when a Facebook fad had people all over the globe dumping ice water on their heads a few summers ago, Charity Warder, now a senior at Pocahontas County High School, was late to the game.
Sure, Charity has an iPhone, but she uses it mostly as a clock and a calculator. She makes phone calls from a landline, and she rarely texts her friends. Texting and driving? “It’s not a thing here,” she said.
When Charity wants to get online at home, she sits at her family’s desktop computer, which has a broadband connection that is so sluggish ( ), it takes minutes to load a YouTube video.
Welcome to Green Bank, population 143, where Wi-Fi is both unavailable and banned and where cellphone signals are nonexistent.
The near radio silence is a requirement for those living close to the town’s most prominent ( ) and demanding resident, the Green Bank Observatory, home to the world’s largest fully steerable ( ) radio telescope. To protect the sensitive equipment from interference ( ), the federal government in 1958 established the National Radio Quiet Zone, a 13,000-square-mile area near the state’s border with Virginia.
The observatory’s telescope “could detect your phone on Saturn in airplane mode,” states a sign outside its science center building, but is rendered ( ) much weaker if anyone uses electronics that emit radio waves. For those who live within 10 miles of the observatory, the limitations also include a ban on Bluetooth devices and microwaves, unless they are contained in a metal box, known as a Faraday cage, which blocks electromagnetic fields.
Nearly 15 million Americans live in sparsely ( ) populated communities where there is no broadband internet service at all, a stark ( ) digital divide across America between those with access to uber-fast connections and those with none.
But in Green Bank, where the restrictions are mandatory, the quiet zone has in many ways created a time warp ( ) in the mountainous region. Phone booths loom ( ) near barns and stand guard on rural roads. Paper maps are still common. Here, people are less distracted by the technologies that have come to dominate 21st-century American life.
At a time when nearly 60% of American teens say they have been bullied or harassed ( ) online, and studies have found links between social media use and teen mental health problems, the digital limitations around Green Bank have created a unique kind of modern childhood, providing a glimpse into what it means to grow up without the constant buzz ( ) of texting and social media.
沒手機訊號、沒無線網路的無憂
在美國西維吉尼亞州綠岸鎮,人們看不到短影音應用程式「抖音」大多數的網路爆紅舞步和改編舞步挑戰。這個地方的人也看不到擴增實境濾鏡等在社群軟體Snapchat和Instagram上爆紅的事物。
而在幾年前夏天,臉書掀起一陣風潮,使全球各地網友紛紛朝自己頭上傾倒冰塊和水時,目前已是波卡洪塔絲縣高中畢業班學生的Charity Warder,很晚才加入這行列。
查瑞蒂是有支iPhone,但她多半用來當鬧鐘和計算機。她只打固網電話,很少傳簡訊給朋友。邊傳簡訊邊開車?她說:「這裡沒這種事。」
查瑞蒂想在家上網時,就坐在全家共用的桌上型電腦前,電腦連接的寬頻網路非常慢,要花上好幾分鐘才能載入一支YouTube影片。
歡迎來到綠岸這個僅143人的小鎮,這裡既沒無線網路也不准使用,更沒有手機訊號。
綠岸天文台是鎮裡最出名且要求最多的「住戶」,世界最大的全可動射電望遠鏡即設置於此,而幾乎禁絕無線電則為其附近居民必須接受的要求。為了保護這裡的精密設備不受干擾,聯邦政府1958年將西維吉尼亞州靠近維吉尼亞州、約3萬4000平方公里的區域劃為「國家無線電寂靜特區」。
綠岸天文台科學中心大樓外的告示牌寫道,這個天文台的望遠鏡很敏銳,「即使手機開飛航模式放在土星上,望遠鏡都偵測得到」,不過若有人使用會發射無線電波的電子產品,望遠鏡偵測能力就會大為減弱。天文台方圓16公里內的居民甚至連藍牙裝置和微波爐都不准使用,除非把這些裝置放在名為「法拉第籠」的金屬籠裡,這種籠子能阻隔電磁場。
近1500萬美國人住在全無寬頻網路的人煙稀少地帶,與美國各地得以使用超快網路的人形成強烈對比。
不過,在強制執行這些限制的綠岸,寂靜特區使這多山地帶在許多方面出現時間錯位現象。電話亭赫然出現在穀倉附近,並佇立在鄉間道路旁。紙本地圖仍盛行。這裡的人比較不會為主導21世紀美國人生活的科技而分心。
近六成美國青少年表示曾遭受網路霸凌和騷擾,而且研究顯示使用社群媒體和青少年出現心理健康問題有關,在這當口,綠岸對數位技術的限制創造出一種獨特的現代童年生活,讓人一窺不在簡訊和社群媒體持續的訊息轟炸下長大,會是什麼樣貌。
#高雄人 #學習英文 請找 #多益達人林立英文
#高中英文 #成人英文
#多益家教班 #商用英文
#國立大學外國語文學系講師
同時也有209部Youtube影片,追蹤數超過6萬的網紅Herman Yeung,也在其Youtube影片中提到,電子書 (手稿e-book) (共261頁) (HK$199) https://play.google.com/store/books/details?id=Fw_6DwAAQBAJ Calculus 微積分系列︰ https://www.youtube.com/playlist?list=PLz...
「area calculator」的推薦目錄:
area calculator 在 Ernie Diana Facebook 的精選貼文
Im almost forgot n im suppose post it in Fb las week..im helping my fren to collect recycle items for donation which stil in gud condition such as
1. Boy school uniform(primary 1-6)
2. Girl school uniform(primary 1-6)
3. White school shoes & stockins
4. Belts
5. School Beg
6. Any book stories in English or Bm
7. Calculator
8. Pencil case
9. Simple Tshirt prefer plain colour
10.Tracksuit & sport shoes
These items wil b collected started this week until 11 Jan 2020..either send to me via post( PM for my house address) or can send directly to my house which im staying housing across Vivacity Mall,Tabuan Kuching..or i can go to ur place to collect if ure not staying not far frm Tabuan,BDC,Pending n Kenyalang Park area..u also can help me collecting those needed items frm ur frens & family then pass it to me on behalf them..or we can meet somewhere in town or shopping mall to pass me the items..for uolls information..me & my frens collecting these items for donate to the poor family area Padawan that some childrens r still schooling but so sad to see their condition in poverty..im not doin these as intention seeker nor publicity..or saying that im gud person but nevertherless..at least i could help them those who really needed help especially among the poor students..they r our future in 20 years to come..our Future enginneer..future doctors..future Lawyer..future Architect..at least wit these simple kind of help, can put smile on their face n wont feel down if they lack of something such as using old school uniform..torn school shoes..trouser wit patching here & there..using plastic bag to bring excersice books..etc..at least we give them items that we don use anymore but stil in gud condition to them rather than we throw it away or burn it..n one more thing..im not goin to receive donation in cash..but u can donate by buying some stationery like pencil,ruller,rubber,pens etc within cost frm rm5-rm10..
Make them feel equal like others n they deserved to b happy too in school.
area calculator 在 Herman Yeung Facebook 的精選貼文
Calculus 微積分系列,拍左5日,共110條片,約7小時15分鐘
有讀 M1, M2、想讀 M1, M2、無讀 M1, M2 都啱睇
由最 basic (中三的 level) 教到 pure maths 的 level,
現大致已有以下內容︰
(1) Concept of Differentiation 微分概念
(2) First Principle 基本原理
(3) Rule development 法則證明
(4) Trigonometric skills 三角學技術
(5) Limit 極限
(6) Sandwiches Theorem 迫近定理
(7) Leibniz Theorem 萊布尼茲定理
(8) Logarithmic differentiation 對數求導法
(9) Implicit differentiation 隱函數微分
(10) Differentiation of more than 2 variables 超過2個變數之微分
(11) Differentiation by Calculator 微分計數機功能
(12) Meaning of Integration 積分意義
(13) Rule of Integration 積分法則
(14) Trigonometric rule of Integration 三角積分法則
(15) Exponential, Logarithmic rule of integration 指數、對數積分法則
(16) Integration by Substitution 代換積分法
(17) Integration by Part 分部積分法
(18) Integration Skill : Partial Fraction 積分技術︰部分分式
(19) Integration by Trigonometric Substitution 三角代換積分法
(20) t-formula
(21) Limit + Summation = Integration 極限 + 連加 = 積分
(22) Application of Integration – Length of curve 積分應用之求曲線長度
(23) Application of Integration – Surface area 積分應用之求表面積
(24) L’ Hospital rule 洛必達定理
之後不斷 updated,大家密切留意
https://www.youtube.com/playlist…
area calculator 在 Herman Yeung Youtube 的精選貼文
電子書 (手稿e-book) (共261頁) (HK$199)
https://play.google.com/store/books/details?id=Fw_6DwAAQBAJ
Calculus 微積分系列︰ https://www.youtube.com/playlist?list=PLzDe9mOi1K8o2lveHTSM04WAhaGEZE7xB
適合 DSE 無讀 M1, M2,
但上左 U 之後要讀 Calculus 的同學收睇
由最 basic (中三的 level) 教到 pure maths 的 level,
現大致已有以下內容︰
(1) Concept of Differentiation 微分概念
(2) First Principle 基本原理
(3) Rule development 法則證明
(4) Trigonometric skills 三角學技術
(5) Limit 極限
(6) Sandwiches Theorem 迫近定理
(7) Leibniz Theorem 萊布尼茲定理
(8) Logarithmic differentiation 對數求導法
(9) Implicit differentiation 隱函數微分
(10) Differentiation of more than 2 variables 超過2個變數之微分
(11) Differentiation by Calculator 微分計數機功能
(12) Application of Differentiation - curve sketching 微分應用之曲線描繪
(13) Meaning of Integration 積分意義
(14) Rule of Integration 積分法則
(15) Trigonometric rule of Integration 三角積分法則
(16) Exponential, Logarithmic rule of integration 指數、對數積分法則
(17) Integration by Substitution 代換積分法
(18) Integration by Part 分部積分法
(19) Integration Skill : Partial Fraction 積分技術︰部分分式
(20) Integration by Trigonometric Substitution 三角代換積分法
(21) t-formula
(22) Reduction formula 歸約公式
(23) Limit + Summation = Integration 極限 + 連加 = 積分
(24) Application of Integration – Area 積分應用之求面積
(25) Application of Integration – Volume 積分應用之求體積
(26) Application of Integration – Length of curve 積分應用之求曲線長度
(27) Application of Integration – Surface area 積分應用之求表面積
(28) L’ Hospital rule 洛必達定理
(29) Fundamental Theorem of Integral Calculus 微積分基礎原理
(30) Calculus on Physics 微積分於物理上的應用
(31) Calculus on Economics 微積分於經濟上的應用
(32) Calculus on Archeology 微積分於考古學上的應用
之後不斷 updated,大家密切留意
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Please subscribe 請訂閱︰
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HKDSE Mathematics 數學天書 訂購表格及方法︰
http://goo.gl/forms/NgqVAfMVB9
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area calculator 在 Herman Yeung Youtube 的精選貼文
電子書 (手稿e-book) (共261頁) (HK$199)
https://play.google.com/store/books/details?id=Fw_6DwAAQBAJ
Calculus 微積分系列︰ https://www.youtube.com/playlist?list=PLzDe9mOi1K8o2lveHTSM04WAhaGEZE7xB
適合 DSE 無讀 M1, M2,
但上左 U 之後要讀 Calculus 的同學收睇
由最 basic (中三的 level) 教到 pure maths 的 level,
現大致已有以下內容︰
(1) Concept of Differentiation 微分概念
(2) First Principle 基本原理
(3) Rule development 法則證明
(4) Trigonometric skills 三角學技術
(5) Limit 極限
(6) Sandwiches Theorem 迫近定理
(7) Leibniz Theorem 萊布尼茲定理
(8) Logarithmic differentiation 對數求導法
(9) Implicit differentiation 隱函數微分
(10) Differentiation of more than 2 variables 超過2個變數之微分
(11) Differentiation by Calculator 微分計數機功能
(12) Application of Differentiation - curve sketching 微分應用之曲線描繪
(13) Meaning of Integration 積分意義
(14) Rule of Integration 積分法則
(15) Trigonometric rule of Integration 三角積分法則
(16) Exponential, Logarithmic rule of integration 指數、對數積分法則
(17) Integration by Substitution 代換積分法
(18) Integration by Part 分部積分法
(19) Integration Skill : Partial Fraction 積分技術︰部分分式
(20) Integration by Trigonometric Substitution 三角代換積分法
(21) t-formula
(22) Reduction formula 歸約公式
(23) Limit + Summation = Integration 極限 + 連加 = 積分
(24) Application of Integration – Area 積分應用之求面積
(25) Application of Integration – Volume 積分應用之求體積
(26) Application of Integration – Length of curve 積分應用之求曲線長度
(27) Application of Integration – Surface area 積分應用之求表面積
(28) L’ Hospital rule 洛必達定理
(29) Fundamental Theorem of Integral Calculus 微積分基礎原理
(30) Calculus on Physics 微積分於物理上的應用
(31) Calculus on Economics 微積分於經濟上的應用
(32) Calculus on Archeology 微積分於考古學上的應用
之後不斷 updated,大家密切留意
------------------------------------------------------------------------------
Pure Maths 再現系列 Playlist: https://www.youtube.com/playlist?list=PLzDe9mOi1K8os36AdSf64ouFT_iKbQfSZ
------------------------------------------------------------------------------
Please subscribe 請訂閱︰
https://www.youtube.com/hermanyeung?sub_confirmation=1
------------------------------------------------------------------------------
HKDSE Mathematics 數學天書 訂購表格及方法︰
http://goo.gl/forms/NgqVAfMVB9
------------------------------------------------------------------------------
Blogger︰ https://goo.gl/SBmVOO
Facebook︰ https://www.facebook.com/hy.page
YouTube︰ https://www.youtube.com/HermanYeung
------------------------------------------------------------------------------
area calculator 在 Herman Yeung Youtube 的最讚貼文
電子書 (手稿e-book) (共261頁) (HK$199)
https://play.google.com/store/books/details?id=Fw_6DwAAQBAJ
Calculus 微積分系列︰ https://www.youtube.com/playlist?list=PLzDe9mOi1K8o2lveHTSM04WAhaGEZE7xB
適合 DSE 無讀 M1, M2,
但上左 U 之後要讀 Calculus 的同學收睇
由最 basic (中三的 level) 教到 pure maths 的 level,
現大致已有以下內容︰
(1) Concept of Differentiation 微分概念
(2) First Principle 基本原理
(3) Rule development 法則證明
(4) Trigonometric skills 三角學技術
(5) Limit 極限
(6) Sandwiches Theorem 迫近定理
(7) Leibniz Theorem 萊布尼茲定理
(8) Logarithmic differentiation 對數求導法
(9) Implicit differentiation 隱函數微分
(10) Differentiation of more than 2 variables 超過2個變數之微分
(11) Differentiation by Calculator 微分計數機功能
(12) Application of Differentiation - curve sketching 微分應用之曲線描繪
(13) Meaning of Integration 積分意義
(14) Rule of Integration 積分法則
(15) Trigonometric rule of Integration 三角積分法則
(16) Exponential, Logarithmic rule of integration 指數、對數積分法則
(17) Integration by Substitution 代換積分法
(18) Integration by Part 分部積分法
(19) Integration Skill : Partial Fraction 積分技術︰部分分式
(20) Integration by Trigonometric Substitution 三角代換積分法
(21) t-formula
(22) Reduction formula 歸約公式
(23) Limit + Summation = Integration 極限 + 連加 = 積分
(24) Application of Integration – Area 積分應用之求面積
(25) Application of Integration – Volume 積分應用之求體積
(26) Application of Integration – Length of curve 積分應用之求曲線長度
(27) Application of Integration – Surface area 積分應用之求表面積
(28) L’ Hospital rule 洛必達定理
(29) Fundamental Theorem of Integral Calculus 微積分基礎原理
(30) Calculus on Physics 微積分於物理上的應用
(31) Calculus on Economics 微積分於經濟上的應用
(32) Calculus on Archeology 微積分於考古學上的應用
之後不斷 updated,大家密切留意
------------------------------------------------------------------------------
Pure Maths 再現系列 Playlist: https://www.youtube.com/playlist?list=PLzDe9mOi1K8os36AdSf64ouFT_iKbQfSZ
------------------------------------------------------------------------------
Please subscribe 請訂閱︰
https://www.youtube.com/hermanyeung?sub_confirmation=1
------------------------------------------------------------------------------
HKDSE Mathematics 數學天書 訂購表格及方法︰
http://goo.gl/forms/NgqVAfMVB9
------------------------------------------------------------------------------
Blogger︰ https://goo.gl/SBmVOO
Facebook︰ https://www.facebook.com/hy.page
YouTube︰ https://www.youtube.com/HermanYeung
------------------------------------------------------------------------------
area calculator 在 Area Calculator. Find the Area of 16 Popular Shapes! 的相關結果
How to calculate area? · Square area formula: A = a² · Rectangle area formula: A = a * b · Triangle area formulas: A = b * h / 2 or · Circle area ... ... <看更多>
area calculator 在 Square Footage Calculator - Calculator Soup 的相關結果
How to calculate square footage for rectangular, round and bordered areas. Calculate project cost based on ... rectangle area for cubic yard calculation ... ... <看更多>
area calculator 在 Area Calculator 的相關結果
This free area calculator determines the area of a number of common shapes using both metric units and US customary units of length, including rectangle, ... ... <看更多>