If you're looking for out of the box ideas for proposing to your girlfriend, you might want to take a leaf out of this guy's book.
When physicist Brendan McMonigal from Sydney, Australia, proposed to his partner of seven years, Christie Nelan, it was with a physics paper and not a ring.
His paper, Two Body Interactions: A Longitudinal Study, is full of science geek speak and even includes a graph of the couple's relationship ("happiness over time") together with the all important question.
Fellow physics major and geek Ms Nelan - who said yes - published a link to a digital copy of the proposal on social news site Reddit this week and it went viral overnight.
It has been viewed over 1.7 million times and has tens of thousands of Facebook shares.
Speaking to Sydney Morning Herald, Ms Nelan said: "I guess we won the internet."
While the proposal actually happened on their seventh anniversary on March 23 last year, she decided to publish it online this week ahead of their March 23 wedding this year.
Ms Nelan said the couple, both 26, could not have imagined the reaction the proposal has received.
She said: "The reaction has been overwhelmingly positive. Lots of comments telling us to go make smart babies, to 'enjoy your entanglement', and lots of congratulations."
Mr McMonigal brought Ms Nelan to the spot where they had met at the University of Sydney, where they both studied advanced maths and physics, saying he needed to show her a paper he was having trouble understanding.
He told Sydney Morning Herald: "I subtly got down on one knee to get the paper from my bag and hand it to her, then stood up to wait for her reaction."
"She hadn't noticed what was happening at all, but as a typical physics grad, she read the abstract and then skipped straight to the conclusion and quickly cottoned on."
Ms Nelan said she that although she had a feeling he was planning something, she was still "blown away".
Theirs is not the only geeky marriage proposal to have gone viral. One gamer previously proposed by spelling out "Lisa Will You Marry Me" in coins in Super Mario World.
And in 2010, Chad Clay proposed to his partner via a mock iPhone TV commercial that he created and arranged to be played at their local cinema, where the pair had their first date.
(Source: Sydney Morning Herald)