I鈥檝e been making notes to revise for my exams, and as I write, the pages curl inwards first from the top corners of the paper, and then the bottom corners. Why is this? I鈥檓 using a black ballpoint pen on white A4 printer paper.
Gurleen Kaur, By email, no address supplied
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This article appeared in print under the headline 鈥淓verything but the curl鈥