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@valo in April 2023

@valo

Plants rely on photosynthesis to produce the much-needed carbohydrates to keep themselves alive. Chlorophyll is the main chemical that reacts with light and binds CO2 and water into glucose. As the weather cools and sunlight level drops, chlorophyll is broken down.

@valo

I mentioned chlorophyll, but it is not the only molecule that dyes the leaves. Other molecules, such as xanthophyll, carotene and anthocyanins become responsible for the colouration. They exist throughout the year, but chlorophyll dominates over them. Xanthophyll is yellow. Carotene, as the name suggests, gives carrots their orange colour but also paints autumn leaves in beautiful shades. Anthocyanin is typically responsible for the blue colour of flowers and berries.…

@valo

I just couldn’t resist the contrast between this intense red leaf against the green moss. The small dew droplets were just an extra touch to make it even more beautiful.

@valo

From the castle towers I had a lovely trip to the picturesque city of Vidin, Bulgaria. The huge medieval castle is a paradise for any photographer. The second photo also has a framing effect, though, it is not as prominent. There are several similar-looking towers, of which two were accessible to tourists. Two others are locked. The castle sits at the shore of the Danube. I like the brick walls and rocks that were used centuries ago. It's amazing how this building managed to…