A Big Green Dew Machine
My thanks to Peter Gibbs for this gem of an email: I thought you might like this observation from today. I’ve been working in the…
Latest from Tristan
Which Way Are We Looking? Snowdonia
I spent much of last week exploring a part of the Snowdonia National Park in Wales that I hadn’t been to before. I took the photo…
What are Anticrepuscular Rays?
If there was no atmosphere the daytime sky would like the nighttime one, but with a fiercely bright star where the sun was. Air is…
Sounds Make a Map
A Guide to Exploring Soundscapes Sounds make a map. Here is an easy exercise to help you hone your understanding of sound maps. It is…
Why does the Gnomon on a Sundial Point South?
The pointy bit of a sundial is called a ‘gnomon’. It is the part that casts the shadow and in the northern hemisphere it points…
Nature’s Clues & Signs – Grey Mare’s Tail
Grey Mare’s Tail is a nature reserve near Moffat, Southern Scotland. The reserve is named after a very beautiful 60m waterfall. In August I hiked up…
Gradient Affects Sunrise and Sunset Times
Sunrise and sunset come earlier when you are looking uphill and later when you are looking downhill. In this photo it looks like the sun…
Plants Change Near the Coast
The closer to the coast we get, the tougher it is for plants. Once you can smell the sea only maritime species thrive in the…
Beautiful Gate Latch
I was walking through the Goodwood Estate yesterday when I came across something strange and beautiful.