The Big Bang Theory (2007– )
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The Geology Methodology 

Bert asks Sheldon to collaborate on a project with him, Sheldon becomes dubious others finding out because he thinks geology is beneath him. Rai seeks advice after reconnecting with Ruchi.


Mark Cendrowski


Chuck Lorre (created by), Bill Prady (created by) | 7 more credits »

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Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny Hofstadter
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Mayim Bialik ... Amy Farrah Fowler
Melissa Rauch ... Bernadette Rostenkowski
Kevin Sussman ... Stuart Bloom
Brian Posehn ... Bert Kibbler
Swati Kapila ... Ruchi
Elka Rodriguez Elka Rodriguez ... Rose Lady


Bert asks Sheldon to collaborate on a project on dark matter where Bert requires some math expertise. Sheldon neither wants to admit to anyone that he is interested in Bert's offer or that he has accepted that offer. As such, Sheldon has to hide his activities from his friends, meaning working late hours. In the process, Sheldon has mixed emotions as even though he enjoys the work and the project, he still doesn't respect the field of Geology and so feels ashamed of collaborating in such work. He has to reconcile his feelings before it affects his work on the project. Meanwhile, Raj, out at a bar one evening with Howard, runs into Ruchi. Unlike their last awkward encounter, Raj and Ruchi have a good time together, so much so that Ruchi wants to have a casual relationship with him. If he agrees, Raj will have to see if he really can do so as he has never had a casual relationship with a woman in his life, he always having seen in the back of his mind whatever woman he's been with as ... Written by Huggo

Plot Summary | Add Synopsis


Comedy | Romance


TV-PG | See all certifications »





English | Hindi

Release Date:

9 November 2017 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
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Did You Know?


This episode was taped on October 10, 2017. See more »


Ruchi: Are you sure you're okay with this?
Raj Koothrappali: Honestly, Ruchi, I don't have a lot of experience with casual relationships. I have some experience with serious relationships and a ton of experience with no relationships.
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References The Bachelor (2002) See more »


History of Everything (Instrumental version)
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Instrumental version of series theme song played over the closing credits]
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User Reviews

What an Excellent Episode, A Complete Laughter Riot, Loved it!
10 November 2017 | by amanpathak-123See all my reviews

This is what Big bang theory does best. Keeps on hammering excellent jokes back to back to the point its a laughter riot non stop. Loved the Episode and Loved all the Cricket References in it. I know, not many Americans will get it, but I'm glad they included it. Hilarious as always, Keep up the great work guys!!

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