Why Snap-Together Cell Phones Will Never WorkPhoneBloks, cell phones, new, technology, cuttingedge, build your own, snapScientific American Contributors
Indigenous peoples in the Amazon are using modern technology to defend their land—and their way of life. “We want the world to see us so they can help us.”
Why All Cell Phone Batteries Could Disappear By 2015Tom Zoellner
“手机”有两个“学名”：移动电话（mobile phone）和“蜂窝式便携无线电话”（cellphone）。第一个学名不太通用，第二个学名cellphone却牢牢扎根。英文单词cellphone怎么会广布全球、世界通用呢？请注意其中的构造成分“cell”，它有三个意思：细胞、蜂窝、牢房。我们可以从这三个角度来描绘手机的功能，...
As a tech leader at PDS, Ostendorf says he has to be in the loop when decisions surrounding student devices and cell phones are made. “Leadership in each of our divisions makes decisions regarding cell phone use,” he says. “Our Academic Technology team and I play a key role in helping...
While it’s normal for your phone to heat up occasionally, the optimal internal temperature for cell phones ranges from 32°F to 95°F (0°C to 35°C), and temperatures between 96.8°F to 109.4°F (36°C to 43°C) are still considered normal. Anything above this is unsafe and you...
Around the world, humans are spending at least 40% of their waking hours looking at screens, whether it be cell phones, televisions, or computers. All that overconsumption is leading to a new series of psychological problems that many children, adolescents, and adults are starting to e...
The first section describes some physicochemical aspects of aqueous cyclodextrin solutions that are of crucial importance in relation to mechanistic studies. The next section analyses all types of information that can be obtained from different nitrosation reaction patterns either in...
The graph below shows the average cost of monthly contract for four different cell phones in a European country from January to September in 2002. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words. Task 1 曲线图...
A. How phone signals are delivered. B. How cellphones produce radiation. C. Features of radiation from cellphones. D. Differences between ionizing and non-ionizing radiation.4. What might be the theme of NTP scientists' further research? A. Why cellphone use causes cancer. B. Whether ...