You’re probably familiar with the idea of sundials. A shadow falls on a scale, which then indicates the time of day. They may seem like a primitive technology, but there is a lot of science behind them, and each sundial is ...
Sundials
Living in Space
You can get an appreciation of how craters are formed by doing an easy experiment with flour and cocoa powder. You could use instant hot chocolate or any other combination of contrasting powders, but if you use flour and ...
Crater brownies
Exploring Space
In this article you'll learn how to prepare for a future career in rover driving. More specifically, you'll get a sense of the delayed round trip from sending commands to a rover on another planet. We'll use a video ...
Delayed video feed for your rover
Exploring Space
Few people will get the opportunity to drive a rover on another planet or moon, but lots of people have radio controlled toys. In this article we are going to look at how you can use one of these common toys to practice ...
Your Radio Controlled Rover
Exploring Space
In this article we'll look at adding together larger binary numbers, and learn how you can apply the process to add numbers of any size.
In a previous article we looked at using the logic gates in integrated circuits to ...
Foundation of Computers part 3: Full adder
Exploring Space
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