On February 18, 2020, NASA successfully landed its rover “Perseverance” on planet Mars. To slow down its descent the rover deployed a parachute. The whole operation was filmed and relayed on the Internet. You can watch the official NASA video…
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Mars Perseverance Rover
On February 18, 2020, NASA’s rover called “Perseverance” successfully landed on Mars. The mission of this high-tech 6-wheel rover is to explore the surrounding areas, analyse the Martian soil on different locations, take high definition pictures as well as audio…
Wanted Poster (CSS Task)
For this challenge we will create a Wanted Poster using a range of HTML and CSS skills. CSS Selectors & CSS Properties In order to complete this challenge, you need a good understanding of how CSS selectors work. You can…
Binary Search Tree Implementation
Binary Search Trees are an effective solution to store data in a computer program and perform a binary search. The benefits of using a BST (Binary Search Tree) data structure is that data can be added to the tree as…
Lossless Compression: Huffman Coding Algorithm
The Huffman Coding algorithm is used to implement lossless compression. For the purpose of this blog post, we will investigate how this algorithm can be implemented to encode/compress textual information. The principle of this algorithm is to replace each character…
Average night’s sleep survey
For her PSHE homework on the importance of sleep, Clarisse has decided to collect data from pupils of different year groups from her school. She will do so using a short survey. The aim of the survey will be to…
Reverse Polish Notation Parser
Reverse Polish notation (RPN), also known as Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands. This notation is an alternative notation to the standard infix notation in which operators are located…
Truth Table Generator (Using Python)
The purpose of this blog post is to write a Python script that will interpret a Boolean expression and output its full Truth Table. Boolean Expressions & Truth Tables Before attempting this challenge, you should test your understanding of Boolean…
File Size Calculations
Digital data consists of binary information and is stored as a collection of 0’s and 1’s. On a computer system, numbers, text, pictures, sound files, video clips and computer programs are all stored using binary code. Storing text files in…
Binary Subtraction using Logic Gates
In our previous blog post “from transistors to processors” we found out that the CPU consists of logic gates, which are made using transistors. In this blog post we are looking at how these logic gates can be combined to…
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