Trees (data structures) | Hashing | Error detection and correction | Cryptographic hash functions
A hash calendar is a data structure that is used to measure the passage of time by adding hash values to an append-only database with one hash value per elapsed second. It can be thought of special kind of Merkle or hash tree, with the property that at any given moment, the tree contains a leaf node for each second since 1970‑01‑01 00:00:00 UTC. The leaves are numbered left to right starting from zero and new leaves are always added to the right. By periodically publishing the root of the hash-tree is it possible to use a hash calendar as the basis of a hash-linking based digital timestamping scheme. (Wikipedia).
In this video, you’ll learn more about how hashtags are used on Twitter. Visit https://www.gcflearnfree.org/twitter/what-is-a-hashtag/1/ for our text-based lesson. This video includes information on: • Using hashtags • Browsing popular hashtags We hope you enjoy!
From playlist Twitter
Howto: Whole Year Calendar in Python #shorts
#shorts Python is awesome! This is how it can print a whole year calendar for you in just 3 lines of code.
From playlist Python
The Italian Calendar: Seasons, Months of the Year, and Days of the Week
We humans have built a lot of time-based social constructs for ourselves. Some are based on things we can observe, like the seasons, and one year being the cycle that repeates them. But things like months and days are completely arbitrary. Nevertheless, we have to learn them in order to co
From playlist Italian
From playlist Week 0 (Spring 2015)
Twitter Trending This Week: USA (March 8 - 15, 2020)
This animated plot shows the top 10 Twitter trending topics by hour for the USA for March 8 - 15, 2020. It also shows the topics with the most hours at #1 for the week. Times shown are in EST. This is part of an going series aimed at providing a useful recap and summary of top Twitter tre
From playlist Twitter Trending This Week: USA
Twitter Trending This Week: Worldwide (March 8 - 15, 2020)
This animated plot shows the top 10 Twitter trending topics by hour in the world for March 8 - 15, 2020. It also shows the topics with the most hours at #1 for the week. Times shown are in UTC. This is part of an going series aimed at providing a useful recap and summary of top Twitter tr
From playlist Twitter Trending This Week: World
[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
Live CEOing Ep 351: Language Design in Wolfram Language [Array Processing | Part 2]
In this episode of Live CEOing, Stephen Wolfram discusses the language design of Wolfram Language functions relating to array processing and more. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twit
From playlist Behind the Scenes in Real-Life Software Design
Lone Star Ruby Conference 2010 - Recurring Dates by John Crepezzi
Help us caption & translate this video! http://amara.org/v/He4F/
From playlist Lone Star Ruby Conference 2010
Live CEOing Ep 559: Language Design in Wolfram Language [FindEquationalProof & ProofGraph]
In this episode of Live CEOing, Stephen Wolfram discusses upcoming improvements and features to the Wolfram Language. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wolfram
From playlist Behind the Scenes in Real-Life Software Design
EmberConf 2017: Higher Order Components by Miguel Camba
Higher Order Components by Miguel Camba Since the component keyword and the hash helper were introduced to the framework, a whole new realm of APIs has become possible and yet the broader community has yet to fully embrace these powerful abstractions. With this talk I will help to spread
From playlist EmberConf 2017
Should You Switch to Google Keep? (Evernote Comparison)
Google Keep and Evernote are both excellent tools for capturing new ideas. Whether its notes, pictures, lists, or narration, these two applications can devour almost anything that you want. But the ability to quickly and easily capture your thoughts is key to working at your productive bes
From playlist Recent Google Keep "How To" Training
CSE 518 -- Lecture 8, Fall 2020
From playlist CSE 519 -- Fall 2020
The Happy New Year 2021 Multiplication Trick // Math Minute [#27] [NUMBER SENSE]
If you're anything like me, and I have no doubt that you are, you've already checked to see if there's anything interesting about the arbitrary string of digits to our new year. Fortunately for us, there is! 2021 is not only the new year, it's also the product of two consecutive primes, 43
From playlist Math Minutes
Live CEOing Ep 473: Language Design in Wolfram Language [DateSetter & TimeSetter]
In this episode of Live CEOing, Stephen Wolfram discusses upcoming improvements and functionality to the Wolfram Language. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wo
From playlist Behind the Scenes in Real-Life Software Design
[Rust] Advent of Code 2021 - Days 8 + 9
This is an archive copy of days 8 and 9 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
From playlist Advent of Code 2021
Excel Shortcuts - Formatting with !@#$%^ - Podcast 2131
Microsoft Excel Shortcut - Using the Ctrl+Shift+Number keys to apply formatting
From playlist Excel Keyboard Shortcuts
Week 9: Wednesday - CS50 2010 - Harvard University
CSS. Inheritance. JavaScript. Events, continued. Ajax.
From playlist CS50 Lectures 2010
[Rust] Advent of Code 2021 - Day 11
This is an archive copy of day 11 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