1.媒體來源:
IEEE Spectrum
（電機電子工程師學會縱覽）
2.完整新聞標題:
Solar-Powered Device Pulls Water Out of Thin (And Pretty Dry) Air
太陽能驅動的裝置從稀薄（且很乾燥）的空氣中汲取水分
3.完整新聞內文:
A new device draws liters of water out of air,
even in desert-like climates.
有一個新的裝置可以從即便是沙漠一般的環境也能從中汲取水分。
And unlike that electric dehumidifier you might have running in your basement,
it runs on the sun’s warmth.
而且不像你地下室可能有著的除濕機，這裝置可以純粹靠太陽能運作。
If it can be made at a low cost,
the system could be used to provide potable water for the millions
facing clean water shortages in developing countries and arid regions.
如果它接下來能被便宜的量產，
這樣的系統可以讓身處缺水問題嚴重的開發中國家、
乾旱地區的百萬人獲得方便攜帶的水資源。
One in 10 people today still lack access to safe drinking water,
according to the World Health Organization.
Almost half of the people getting water from unprotected sources
live in sub-Saharan Africa, and eight in 10 live in rural areas.
根據WHO統計，世界上至今仍有約十分之一地人依舊缺乏安全的飲用水。
將近半數地人在沙哈拉以南的非洲使用沒人保障的水源，
這其中十分之八則是在一般的小村落中。
Many of these countries can’t afford the cost of desalination
even if they are near large water bodies.
Systems that use meshes or canvas to harvest fog are used in some
developing regions, but they require relatively high humidity.
這些國家即便臨海或著靠近很大的潛在水資源，
多半仍無法負擔海水淡化的費用。
在一些國家中試圖使用織布、帆布來凝結霧氣，
但這樣的方式需要非常高的相對濕度。
The new device traps moisture at 20 percent relative humidity,
which is the level common in arid areas and deserts of the world.
現在現在這新的裝置在僅有20%相對濕度下依舊能捕捉水汽
而這樣的相對濕度在絕大多數的乾旱地區來說是很平常的
Researchers at the University of California, Berkeley and MIT
reported in the journal Science that their prototype was able
to pull 2.8 liters of water from the air over a 12-hour period
in experiments done at 20 percent humidity and simulated sunlight.
Rooftop tests confirmed that it works in real-world conditions.
加州大學柏克萊分校與麻省理工在Science期刊中揭露了他們的原形，
可以在20%相對濕度下、十二小時內收集2.8公升的水。
在露天環境下的測試證實了這能夠在現實世界運作。
"My vision for the future direction of this technology is to
have water off-grid where you have a device at home running on
ambient sunlight for delivering water that satisfies the
needs of a household, "
says Omar Yaghi, a professor of chemistry at UC Berkeley
who led the new work with MIT’s Evelyn Wang.
目前與麻省理工Evelyn Wang合作新計畫的加大柏克萊分校的教授，
Omar Yaghi表示：「
我對這項科技未來的發展是期待它能在非水利設施涵蓋處，
自主運作的裝置、靠著陽光驅動來提供一般家庭用的水。」
The system is based on highly porous materials known as
metal-organic framework, which were invented by Yaghi.
These compounds, containing metal clusters linked by organic molecules,
are being developed for applications such as storing hydrogen
and scrubbing carbon dioxide from exhaust gases.
這系統靠著Yaghi開發的多孔有機金屬(MOF)來運作。
MOF化合物是由有機分子連結的金屬所構成，
它是專為儲存開發氫氣、並從空氣中捕捉二氧化炭所開發出來的。
For the water-harvesting device, Yaghi and his team came up with a new MOF
that has just the right balance of water-attracting zirconium units
and water-repelling organic linkers. The zirconium units soak up moisture,
and the water droplets group together in the perfectly-sized
and shaped pores of the MOF.
為了創造這樣的水分汲取裝置，Yaghi跟他的團隊開發了新的MOF物質，
用以平衡親水的鋯金屬單元以及斥水的有機連結部份。
鋯金屬單元可以吸收濕氣，凝結的水滴則會在MOF那大小、形狀恰好的「毛細孔」中聚集。
Increasing the temperature slightly makes the material release the water.
“Water goes in at large quantities but at the same time
the material doesn’t hold on to it too tightly,” Yaghi says.
稍微提高溫度就會使這物質將水釋放出來。
「水可以以很大量地被聚合，但這物質也不會自己緊抓著水不放。」Yaghi如此說道。