Why does Obama use different pens when signing a bill?
http://www.youtube.com/watch?v=ur3guvUobWY
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M$2 Answers
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
You beat me to it :)
Thank you for posting this video. It means a lot to the world scientific community.
Sorry! You can answer too. See if you can find a better reference than mine and I guarantee that you will win the tip.
@nushka I don't think you're referring to me or toofat2serve. For clarity in the future when making comments, place the @ sign followed by the person's name.
