科学家将污染物变成打印机墨水_时事

科学家将污染物变成打印机墨水

“在酷热的夏日，如果你拿手帕擦皮肤，手帕就会变得乌黑，麻省理工学院(MIT)媒体实验室的科学家夏尔马说，“所以我们就想‘能不能把这种我们天天抱怨的东西变成日常用品呢?’

For the device to work, it first needs to be exposed to exhaust. In his demo, Sharma uses the flame of a candle.

要让这个设置运行，得先把它放在废气中。做实验时，夏尔马用的是蜡烛燃烧产生的废气。

While the candle burns, a suction pump pulls in the surrounding air to a simple mechanism that separates the carbon black — a byproduct of combustion — from the rest of the air. It then traps the soot in a small chamber to be mixed with alcohol — in this case, vodka — and a drop of olive oil.

蜡烛燃烧时，用真空泵吸走周围的空气，令黑色的炭物质——即燃烧产物——与其余空气分开。接下来，黑灰聚焦到一个小隔间，加入酒精——此例中用伏特加——和一滴橄榄油。

Lastly, the newly formed liquid can be injected into an ordinary ink cartridge for everyday use.

最后，混合而成的液体就能放到普通墨盒中每日使用了。

Sharma admits the black could still be blacker. Since it was designed as a research project, Kaala would also need to hold up against formal toxicity standards before it can hit the market.