# Econometrics

These tutorials are fantastic for econometrics, at all levels:

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# Factor analysis

Great places for Exploratory Factor Analysis (conceptual):

# Gravitational waves. Reproduce yourself LIGO results.

Gravitational Waves

The LIGO Scientific Collaboration recently made the first direct detection of gravitational waves and the first observation of two black holes merging

This iPyhon notebook tutorial shows you how to recreate the results, spectrograms, and sound files. It includes code and data.

Good to learn signal processing and python….

https://losc.ligo.org/s/events/GW150914/GW150914_tutorial.html

# The Lindy effect

If the probability distribution for the lifetime of something, follows a power law distribution (fat tails, then the expected value for additional life time after having lived for a time value $T_b$ will be an additional $T_b$.

The intellectual works life time follow a power law distribution that implies that an idea will have an additional survival time equal to the time it has been with us. Older ideas, music, books will survive longer as they get older.

The Lindy effect