In a previous article we looked at building logic gates from transistors. The next step is to use those logic gates to perform a calculation. We'll only be adding 1 + 1, but this is just another stepping stone to performing ...
Foundation of Computers part 2 – Binary Addition
Exploring Space
Although at first glance blood looks like a single substance, you have probably learnt that it is composed of many different things. This article shows how you can separate out the two main parts using cardboard and string ...
Home Blood Fractionation
Living in Space
The Earth is continuously showered in cosmic rays. Their collisions in the upper atmosphere produces elementary particles that rain down upon us in huge numbers. There's no need to worry though, since these elementary ...
Building a Particle Detector
Exploring Space
Most of what we know about the Universe comes from looking out in to space, and analysing the light (and other electromagnetic radiation) that reaches us. Spectroscopy is one of the tools that we can use, and it allows us ...
Mini Spectroscopes
Exploring Space
Satellites transmit their signals back to Earth fairly indiscriminately, and anyone with the right equipment can receive the signals as they pass overhead. The complexity of the equipment needed depends on the satellite; but ...
Receiving Satellite Transmissions
Exploring Space
Lots of space games focus on flying around in a spaceship firing lasers; but what if you want to combine a love of space and the joy of coding? Described below are a few games that allow you to experience this perfect ...
Space Coding Games
Simulations
There are more human-made objects on the Moon than anywhere else in the Universe (with one obvious exception). You won't be able to see this stuff from Earth, but you can learn where we've left it.
Our Moon is ...
What’s on the Moon?
Exploring Space
This article will show you how to make an Android app that roughly simulates the depletion of Oxygen reserves over time, and gives a warning when it's low. It's only pretend, but we will go over some real information about ...
Pretend Oxygen Monitor
Living in Space, Simulations
The Flexible Image Transport System (FITS) was designed specifically for astronomy images. In this article we'll look at how you can write programs to read the data and recreate the picture stored within it.
A detailed ...
Image File Processing (FITS and Android)
Exploring Space
You might know that the word 'planet' has its origins in the ancient Greek word for 'wandering star'. So the bad news is that you're trying to spot things that look like stars, but that move around and appear in different ...
Planet Spotting
Exploring Space
Most people are not going to get the chance to launch a satellite into space, but everyone can launch a KiteSat. Of course you can't strictly speaking add the 'sat' part because it will never be in orbit, but we're mainly ...
KiteSat-1
Exploring Space
Some basic craft supplies are all you need to start playing around with the mechanical side of robotics. We're going to focus mainly on arms and hands, but you could apply the same techniques to other parts. We're also ...
Prototype Robot Parts
Exploring Space