There's no such thing as "unbecoming"

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I had to wait until I was transitioning to awaken what I thought was an "uncool" interest in science, and now I'm heading towards doing a Renewable Energy degree that's heavily about engineering - and really loving it!
I asked one of the women currently doing the course whether she'd had any issues being a woman there, and she said absolutely not, about a third of the people studying that course across the 3 years of Batchelor's students (and the Master's students too) are women.
Just be the woman you are, interested in what you are interested in - there's billions of different kinds of us

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