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
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
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
Some experiments carried out on the ISS can only be done in its unique micro-gravity environment. However, there was one that was specifically designed so that you could try it out at home.
Ants in Space (technically know ...
Ants in Space
Living in Space
Space food has changed a lot in the past few decades, and can now be quite similar to the food that you eat on Earth. Whether you want to plan a space-themed picnic, or are just interested in the food technology, this ...
Space Food
Living in Space
Water is vital for every living organism that we know about, and if humans are ever to set up permanent residence away from the Earth we'll need to make sure that we have a good supply of it. Fortunately, we now know that ...
Electrolysis of Water
Living in Space
The term "Hydroponics" is fairly familiar nowadays, and is often explained simply as growing plants in water instead of soil. In traditional farming and home growing, the soil fills a number of functions. It provides ...
Basic Hydroponics
Living in Space