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Cryptography, or cryptology is the practice and study of techniques for secure communication. Cryptography relies on using more or less complex encryption algorithms to encode a readable message (plaintext) into a collection of characters (ciphertext) that is hard to decipher…
In this Python challenge, we are going to investigate how to manipulate dates in Python using the datetime library. The aim of this challenge is to write a piece of code to control the Time Machine (aka Flux Capacitor) found…
In mountaineering, running or cycling the cumulative elevation gain (aka total ascent) refers to the sum of every gain in elevation throughout an entire trip. Note that when calculating this elevation gain, elevation losses are not counted in this measure.…
In this challenge we are going to use an easy hack to quickly compare two fractions without having to calculate their decimal value. For instance, can you quickly tell which of the following two fractions is bigger? Fraction Hack: The…
The mesh network puzzle consists of creating a partial mesh network that consists of: Three workstations (client computers) Three servers: a file server, an e-mail server and a web server. Network Requirements Each client computer will need to be connected…
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In this blog post we will investigate how to implement a bouncing algorithm used either in a platform game when the main sprite collides with a platform or in a breakout game when the ball bounce against a brick. (x,y)…
Did you know that in the UK (and also in most European countries), the eggs you buy in a shop must be stamped with a code that can help you find out more about how and where your eggs were…
In this blog post, we will investigate the use of a Stack data structure to store the different flavours of the different scoops of an ice cream! A stack is a FILO data structure: First In Last Out and seems…
In this blog post, we are going to learn about the format of different addresses used on computer networks to uniquely identify hardware devices. We will investigate the use and format of: IPv4 Addresses, IPv6 Addresses, MAC Addresses. IPv4 Addresses… 
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