April 16th – For some weeks now, I’ve been perplexed by the appearance of what seemed like odd, helical antenna on the roofs of tall buildings around urban areas. I kept seeing them from the train. I grew quite interested in them, and decided to find out what they were. I tried to find one to photograph, and it took me over a week to do so. At one stage, they were so elusive I thought I must have dreamt their whole existence.
Today, I spotted two or three where I thought I’d seen them before – on top of office blocks in Birmingham City Centre. I eagerly took these pictures, posted them on social media, and asked what they were. It turns out they’re not antenna at all, but helical wind turbines.
They are micro generators. The reason I couldn’t find them is that when spinning, you can’t see them.
I’m fascinated – Cheers to The Aardvark, Paul Groves and Barry Carpenter, amongst others, who helped me out.
BrownhillsBob's #365daysofbiking 