Allen Versfeld's picture

Maker Camp 2014

Maker CampUrban Astronomer is an astronomy website.  We don't cover general science, or engineering news.  But this is cool, and valuable, and since they've sent a 3D printer to the ISS to allow for in situ manufacturing of spare parts, there's a convenient space angle.  So...

Do you like making things, or tinkering with them to see how they work?  Are your favourite TV characters inventors and scientists?  Do you wish you were one of those clever people who design and build the thousands of machines and gadgets we all rely on every day?  Then why not join the Maker Camp, a six week virtual event sponsored by Google Plus and Make Magazine and take part in some of the 30 brilliant DIY projects.

Read more about Maker Camp 2014

Allen Versfeld's picture

What lies within an asteroid

A schematic view of the strange peanut-shaped asteroid Itokawa. Credit:  ESO. Acknowledgement: JAXAWhen we think about asteroids, we imagine a large potato-shaped rock covered in craters. But a new analysis of data from Hayabusa, the plucky Japanese spacecraft that could, reveals a more interesting picture. It seems that asteroid Itokawa is not a simple space rock, but has a complex structure, with different internal regions having different densities. Read more about What lies within an asteroid

Allen Versfeld's picture

An evening with the Rhenosterspruit conservancy

This past Saturday, I presented a talk on light pollution to the Rhenosterspruit Nature Conservancy. The area is of special interest to me since my home lies within its borders, and despite its rural location suffers from quite bad sky glow. Even on a good night the limiting magnitude never gets better than about 4.5, so I was hoping to reach a few people and improve matters. Unfortunately the turnout was a lot lower than I'd hoped, apparently because there was some sort of sportball game happening, and a lot of people felt that it was important enough to spend several hours in front of a television to watch it.  Ah well, it's a free country and people can spend their time however they like. Read more about An evening with the Rhenosterspruit conservancy


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