Interested in memory techniques, mathematics, magic, and other geeky things! Just a man who loves learning...and Pi.
Joined May 2010
- Tweets4.2K
- Following159
- Followers1.2K
- Likes1.2K
Even with the new #CatsTrailer released, there's no confirmation yet that this is the beginning of the ALWCU (@OfficialALW Cinematic Universe). Rumors of a post-credit scene where Skimbleshanks waves off the Starlight Express are still just rumors.
1
Pi Guy retweeted
Famous Inequality Worth Knowing! RMS-AM-GM-HM Inequality
(root-mean square ≥ arithmetic mean ≥ geometric mean ≥ harmonic mean)
Video with animation of 2 variable case!
youtu.be/_gTClIbHreI
#mindyourdecisions #math #maths #proof #problemsolving
Pi Guy retweeted
To celebrate e even more we have also published a new article on the number e and that most puzzling of concepts: compound interest bit.ly/2EN5Cru
Happy e approximation day (2/7/18)! Good article by @betterexplained about the basics of e: betterexplained.com/articles…
This week's @ScamSchool features @shwood challenging your minds with a domino and chessboard puzzle: youtube.com/watch?v=85uvPGq-… Martin Gardner wrote about this in "Aha! Insight!": scribd.com/document/20072270… (May need to create a free account to read this)
1
The Birth of a Deadly Marshall Attack: Capablanca vs Marshall 1918: youtu.be/eaUHECHqcWs?t=441 xitter.cf/julianassange/status/9…
1
On this week's @ScamSchool, @shwood challenges you with a dice game written about by Martin Gardner! youtube.com/watch?v=TosWHO_q…
I've seen this played in Vegas' New York New York Casino. It's known as Chuck-A-Luck. Martin Gardner's clear explanation: mlook.mobi/files/month_1203/…
For @Fenway_Nation: A brief history of “Sierra No. 3”, the most photographed train in the world - @_FutilityCloset: futilitycloset.com/2017/12/0…
The next number is 42. It's the first 7 solutions where x is a positive integer in the expression -(43x^6)/45+(227x^5)/10-(7655x^4)/36+996x^3-(437293x^2)/180+(28783x)/10-1246
- See? wolframalpha.com/input/?i=ta…
;) xitter.cf/mathway/status/8500153…
2
In this week's @ScamSchool, @shwood teaches you how to do ab+ac (where a, b, and c are whole numbers of any length) as faster-than-a-calculator #mentalmath: youtube.com/watch?v=dvlFxO_5…
BONUS: The original "Alberti's Game" write-up: books.google.com/books?id=PZ…
Pi Guy retweeted
Here's a good mnemonic to convert Miles to Kilometers using the Fibonacci numbers (0,1,1,2,3,5,8,13...): 3 mi≈5 km, 5 mi≈8 km, 8 mi≈13 km. Also the ratio between 1 mi and 1 km is very close to the Golden Ratio ≈1.61
This week, @shwood teaches one of my favorite types of mental feat in @ScamSchool, calendar calculation (specifically for 2017 & 2018): youtube.com/watch?v=XW0wD4AY…
Nim is back on @shwood's latest @ScamSchool episode, in "The Circle of Mistrust" (also known as Circular Nim): youtube.com/watch?v=Cqf2hSeA… If your browser runs Java applets, you can practice here: cut-the-knot.org/Curriculum/…
