A Google-a-Day Puzzle for Sunday, Oct. 30

Geek Culture

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Our good friends at Google run a daily puzzle challenge and asked us to help get them out to the geeky masses. Each day’s puzzle will task your googling skills a little more, leading you to Google mastery. Each morning at 12:01 a.m. Eastern time you’ll see a new puzzle, and the previous day’s answer (in invisitext) posted here.

SPOILER WARNING:
As a test, we’re going to leave the comments on so people can work together to find the answer. As such, if you want to figure it out all by yourself, DON’T READ THE COMMENTS!

Also, with the knowledge that because others may publish their answers before you do, if you want to be able to search for information without accidentally seeing the answer somewhere, you can use the Google-a-Day site’s search tool, which will automatically filter out published answers, to give you a spoiler-free experience.

And now, without further ado, we give you…

TODAY’S PUZZLE:

You’re a detective at a crime scene with no visible evidence. On a hunch, you spray the carpet with a light-emitting solution and it glows, revealing blood. What component of hemoglobin catalyzed the reaction?

YESTERDAY’S ANSWER (mouseover to see):

Use the Google Translate tool to learn that “κρασί” is known in English as “wine.”

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