Numeral systems | Non-standard positional numeral systems | Computer arithmetic
The Aiken code (also known as 2421 code) is a complementary binary-coded decimal (BCD) code. A group of four bits is assigned to the decimal digits from 0 to 9 according to the following table. The code was developed by Howard Hathaway Aiken and is still used today in digital clocks, pocket calculators and similar devices. The Aiken code differs from the standard 8421 BCD code in that the Aiken code does not weight the fourth digit as 8 as with the standard BCD code but with 2. The following weighting is obtained for the Aiken code: 2-4-2-1. One might think that double codes are possible for a number, for example 1011 and 0101 could represent 5. However, here one makes sure that the digits 0 to 4 are mirror image complementary to the numbers 5 to 9. (Wikipedia).
合気道 - 柔らかな護身術 Aikido self-defense techniques
合気道の柔らかな護身術 白川竜次 師範 - 合気会6段 Shirakawa Ryuji shihan - aikikai 6th dan 受け:丸山拓也 Maruyama Takuya , 片山靖和 Katayama Sena Facebook :https://www.facebook.com/aikido.shirakawa Instagram:https://www.instagram.com/ryujishirakawa/ 思わず憧れる!カッコ良くて美しい合気道 https://youtu.be/IwzyRB5hpVQ 白川竜次先生について https:
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RubyConf 2014 - Ruby Idioms You're Not Using Yet
By, Craig Buchek Idioms are some of the smallest patterns that we use in our programming languages. Learning the idioms of a language helps you more quickly understand commonly used patterns. Over time, some idioms fall out of favor, and new idioms are developed and adopted. In this talk
From playlist RubyConf 2014
APIs for Beginners - How to use an API (Full Course / Tutorial)
⚠️ Watch the UPDATED version of this course: https://youtu.be/WXsD0ZgxjRw What is an API? Learn all about APIs (Application Programming Interfaces) in this full tutorial for beginners. You will learn what APIs do, why APIs exist, and the many benefits of APIs. APIs are used all the time i
From playlist Computer Science Concepts
Computer Pioneers: Pioneer Computers Part 1
[Recorded: 1996] Part 1 of 2 The Dawn of Electronic Computing 1935 1945 Computer pioneer Gordon Bell hosts this two-part program on the evolution of electronic computing from its pre-World War II origins through the development of the first commercial computers. His narration traces the
From playlist Early Vacuum Tube Computers - 1940's and 1950's.
RUBYCONF 2009 - Hacking parse.y by: Tatsuhiro Ujihisa
Help us caption & translate this video! http://amara.org/v/GX5E/
From playlist RubyConf 2009
The Science of Compulsive Online Behavior | Mary Aiken | Big Think
The Science of Compulsive Online Behavior Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- The average person checks their
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Online Dating Has Created a Six-Fold Increase in Sexual Assaults | Mary Aiken | Big Think
Online Dating Has Created a Six-Fold Increase in Sexual Assaults Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- When dat
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Cyberchondria: Do Online Health Searches Prompt Symptoms (and Worse)? | Mary Aiken
Cyberchondria: Do Online Health Searches Prompt Symptoms (and Worse)? Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- 1% of
From playlist Best Videos | Big Think
[Rust] Advent of Code 2021 - Day 12
This is an archive copy of day 12 of Advent of Code 2021. Advent of Code (https://adventofcode.com/) is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. -- Watch live at https://www.twitc
From playlist Advent of Code 2021
Professor Harry Lewis takes CS50 on a tour of the Aiken Mark 1 computer in the Science center at Harvard University
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The World's First True Computer Still Hasn't Been Built
Head to https://shopify.com/scishow for a 14-day free trial. Find out more about Shopify Balance: https://shopify.com/balance The code cracking machines of the 1940’s are often referred to as the first computers, but they could not have been developed without the intricate machines that p
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The SECRET Porsche Room FULL TOUR
Today, we tour the Petersen Vault's newest room, the Legends of the Vault Gallery. We've partnered with the Luftgekühlt team to curate Prototype Giants, our newest exhibit in the Vault presented by @Hagerty. Mark Hotchkis takes us through the Porsche 956 and 962 in the new space. When mos
From playlist Ultimate Collection Tours | World's Rarest Cars
THE Heart of AIKIDO Part 2: Hikitsuchi Michio, 10. Dan Sensei
Hikitsuchi Sensei explains Aikido and its origin. Kumano Juku Dojo Shingu Kumano Kodo - Ueshiba Morihei O Sensei AIATJ
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CGSR | Deterrence, the NPT, and the European Nuclear Debate
Talk Abstract When the Nuclear Non-Proliferation Treaty (NPT) Review Conference convenes this August, after more than a year-long delay due to the COVID-19 pandemic, it will undoubtedly feature a well-worn yet imbalanced debate over disarmament. Imbalanced in that the relationship between
From playlist Center for Global Security Research
1944 Computer History: IBM ASCC "Harvard Mark 1" world's largest electro-mechanical calculator
Original 1944 film footage of IBM Automatic Sequence Controlled Calculator (ASCC) aka the "Harvard Mark 1" world’s largest electro-mechanical calculator. Uploaded with improved audio, video, narration and new music soundtrack! (4 mins) Hope you enjoy! Photos and film courtesy of IBM
From playlist Computer History: Early IBM computers 1944 to 1970's
Finding Treasures | Life Below Zero
Sue Aikens hunts along the tundra and stumbles upon an old oil barrel. Life Below Zero follows the lives of rugged individuals living subsistence lifestyles in remote areas of Alaska as they brave the frigid winter temperatures and the ensuing spring break up. Sue Aikens hunts along the tu
From playlist Newest Clips | National Geographic