THE ARCHITECTURE OF AN ONION During my journey through this cosmos of microorganisms, I've learnt that nature doesn't just grow, it builds. After exploring the fancy fern rhizome, I now observed something mundane: an onion peel. It looked like a planned city, to be honest. The comparison is weird, I know, but that was my first thought. 50 x : THE BIG PICTURE
At the lowest magnification, the onion peel looks like a vast, continuous sheet. We can make out the brick-like structure, with rectangular shapes. It looks like a perfectly woven fabric designed for protection. 140 x : DEFINING BOUNDARIES
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As I switched to 140x, the individual building blocks snapped into focus. The cell walls are striking and rigid lines that define the shape of each cell. It’s fascinating to realise that this grid is what gives the onion its structure. We can start to see the individual "rooms" that make up the whole. 340 x : THE FINER DETAILS
I was able to spot the nucleus in several cells, that small, dark, granular control center that I’ve only ever seen in textbook diagrams. Seeing these structures in real-time, knowing they are the heart of cellular life, was a surreal experience. The difference between this and the fern sample was that this was the first time we made our own slides and the moment when the Professor said my slide was perfect just made me jump with joy. Until my next post, keep exploring!
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