// Bad Behavior Start $txt['permissionname_badbehavior_goodgroup'] = 'Bad Behavior Whitelist Group'; $txt['permissionhelp_badbehavior_goodgroup'] = 'This option will make a member group exempt from all Bad Behavior tests.'; // Bad Behavior End // Begin Auto Embed Media Pro Text Strings $txt['mediapro_admin'] = 'Simple Audio Video Embedder'; $txt['mediapro_settings'] = 'Settings'; $txt['mediapro_save_settings'] = 'Save Settings'; $txt['mediapro_err_cache'] = 'Cache folder not writable must fix for performance!'; // END Auto Embed Media Pro Text Strings $txt['botscout_mail_subject'] = 'Bot Attempt Stopped'; $txt['botscout_mail_body'] = 'A bot tried to register, but was stopped from doing so.' . "\n\n" . 'Bot Name: %s' . "\n" . 'Bot Email: %s' . "\n" . 'IP Address: %s'; Recent Posts

Recent Posts

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21
Mathematics / The Sound of Pi
« Last post by Unbeliever on July 01, 2018, 05:02:50 PM »


Quote
Professor Philip Moriarty attributes some sounds to Pi in a discussion about its randomness and the Feynman Point.



https://www.youtube.com/watch?v=wPn4tgmU8ek

23
Mathematics / Recounting the Rationals
« Last post by Unbeliever on June 30, 2018, 03:29:58 PM »
Quote
It is well known (indeed, as Paul Erd˝os might have said, every child knows) that the rationals are
countable. However, the standard presentations of this fact do not give an explicit enumeration;
rather they show how to construct an enumeration. In this note we will explicitly describe a
sequence b(n) with the property that every positive rational appears exactly once as b(n)/b(n+1).
Moreover, b(n) is the solution of a quite natural counting problem.

https://www.math.upenn.edu/~wilf/website/recounting.pdf


Infinite Fractions:
https://www.youtube.com/watch?v=DpwUVExX27E
25
Mathematics / Visualizing Mathematics with 3D Printing
« Last post by Unbeliever on June 29, 2018, 12:46:36 PM »
26
General Science / The Euler Disk Which Spins Forever
« Last post by Unbeliever on June 27, 2018, 03:59:20 PM »


Quote
Matt and Hugh play with an Euler Disk which spins forever. Then they do some working out to check Matt’s previous calculations.

https://www.youtube.com/watch?v=55gJgCoDld4
29
Mathematics / 10,000 Dominoe Computer
« Last post by Unbeliever on June 25, 2018, 05:00:07 PM »


Quote
Matt Parker and a team of Domino Computer Builders balanced over 10,000 dominoes in a carefully designed circuit. The result was a Domino Computer capable of automatically adding numbers. It can take any two four-digit binary numbers and return the five-digit binary sum.

It's a computer, made of dominoes.

https://www.youtube.com/watch?v=OpLU__bhu2w
30
Technology / Transparent Aluminum - Star Trek Technology is now Real
« Last post by Unbeliever on June 24, 2018, 05:23:51 PM »

Quote
ALON - Transparent Aluminum - is a ceramic composed of Aluminium, Oxygen and Nitrogen. Transparent Aluminum, was once pure science fiction, a technical term used in a Star Trek Movie from the 80’s.

In the movie Star Trek 4 The Voyage Home, Captain Kirk and his team, go back in time to acquire 2 whales from the past and transport them back to the future. Scotty needed some materials to make a holding tank for whales on his ship, but had no money to pay for the materials,

So Scotty uses his knowledge of 23 third century technology and the manufacturers computer and programs in, how to make the Transparent Aluminum Molecule.

Transparent Aluminum or Aluminum Oxynitride, also known as ALON, is much stronger than Standard Glass and over time will become cheaper to make, but until then will most likely be used for NASA & the Military.


https://www.youtube.com/watch?v=DduO1fNzV4w
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