Dry ice makes graphene cheaper, greener, and by the (relative) boatload

Amartya Chakrabarti and Graphene

Dry ice isn’t just great for keeping steaks cold and filling your bathtub with fog, it may also play a major role in producing the miracle metal material graphene. Researchers at Northern Illinois University have discovered that burning magnesium in frozen carbon dioxide produces a thin layer of the hyped-to-the-lattices carbon nanostructure. The so-called dry-ice method has several advantages over previous techniques, not the least of which is the ability to pump out the relative of pencil lead on a much larger scale. It also happens to be faster, cheaper, and more environmentally friendly compared with the lengthy processes involving hazardous chemicals used in most graphene production. It’s pretty great news but, honestly, all we want to know is when the stuff is going to start powering super-fast internet connections — that complete Flying Circus collection isn’t going to download itself.

Dry ice makes graphene cheaper, greener, and by the (relative) boatload originally appeared on Engadget on Tue, 21 Jun 2011 11:55:00 EDT. Please see our terms for use of feeds.

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Most common iPhone unlock codes

This chart shows the 10 most common iPhone numeric lock-codes, as anonymously gathered by the Big Brother Security Camera app (now removed from the App Store). They represent 15% of all 204,508 passcodes sampled. I wonder how strongly they correlate with other numeric PINs, such as ATM/Chip-and-PIN codes.

Interestingly, 1990-2000 are all in the top 50, and 1980-1989 are all in the top 100. I would interpret this occurrence as a subset of users that set their passcodes to the year of their birth or graduation.

Most Common iPhone Passcodes

(via Smagdali)


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Most common iPhone unlock codes

Firefox 5 is officially released, how are you liking it?

Why it seems like only yesterday that our little Firefox had its last major upgrade. As expected, the browser turned 5.0 today, and you can celebrate by downloading it now from Mozilla’s site. We’d like to know how your test drive of the update is going so far. Let us know in the poll and the comments below.

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Firefox 5 is officially released, how are you liking it? originally appeared on Engadget on Tue, 21 Jun 2011 14:23:00 EDT. Please see our terms for use of feeds.

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