/oss/taxonomy/term/6295/all en /oss/article/did-you-know-general-science/two-types-erasable-ink-and-why-one-much-cooler-other <p>Introduced in 1979, the Papermate <a href="https://www.papermate.com/about-us.html">Erasermate</a> offered something that, up until then, had been science fiction: an erasable pen. While correction fluids and tape were a well-established solution to inky mistakes, covering up errors was not the ideal way to correct them. Erasermate offered a simple alternative—just remove them.</p> Fri, 04 Nov 2022 10:00:00 +0000 Ada McVean M.Sc. 9284 at /oss /oss/article/general-science/how-do-erasers-work <p>These days we are accustomed to pressing the delete key and a word on the screen disappears, ready to be replaced by a few keystrokes. But that doesn't mean pencils and erasers have disappeared. On multiple-choice exams, little circles are still coloured in with pencils and if a mistake is made, an eraser is needed. Let's glimpse into their history...</p> Thu, 09 Jun 2022 20:52:06 +0000 Joe Schwarcz PhD 9132 at /oss