Author: admin

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Speed of Sound

Visualization showing the speed of sound at different scales. Done in Adobe AfterEffects. [OC] Speed of Sound from dataisbeautiful

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Compiling Berkeley DB 4.8.30 in Ubuntu 19

I’ve been following guides like this one, to run a bitcoin node, but upon compiling Berkeley DB 4.8.30 on my Ubuntu virtual machine, I kept getting the error:   ln -s libdb-4.8.a libdb.a ./libtool...

Bay Area concentration of different ethnicities per census block. 0

San Francisco Geo-Ethnicities

I had been wanting to better understand the geographical characteristics of race and ethnicity in the San Francisco/Bay Area region where I reside. The US Census has plenty of updated information on this topic,...

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Alexa is (probably) not spying on you

Motivation I constantly come across people that claim Alexa (Amazon Echo) is spying on you. They argue that Alexa is either transcribing everything you say and sending the resulting plaintext to Amazon; or even...

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DD-WRT – 10 reasons to get it

I’ve been an avid DD-WRT user for about two years now, and I’ve decided to compile a list of the top 10 reasons for me to love it. If you want to get started...

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Average Chinese Character

Using Python’s Numpy is easy to draw how an average Chinese character would look like. I took the 2000 most common characters hanzidb.org, drew them onto images using `PIL` and calculated it’s average with...

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Simulating and Visualizing Blackjack

Introduction I am sure you are familiar with the basic strategy of Blackjack. A diagram with the dealers face up card on the x-axis and the player cards on the y-axis. In each cell,...