By Matt Parker, Bec Hill
Published March 02, 2025 7:00pm
📃 Is a sheet of A-45 paper big enough to wrap the earth?
✏️ Why do we still call pencil graphite lead?
👔 There’s business to attend to.
You can find Matt and Hannah’s protractor up the shard video here: https://www.youtube.com/watch?v=ckcdqlo3pYc&ab_channel=Stand-upMaths
Here’s Matt’s Truncatable Prime Pencil: https://mathsgear.co.uk/products/truncatable-prime-pencil?srsltid=AfmBOorhZ6qk_IAhKnCjtjoVM3wM-GXMTaFporL13aTjdOokjGG_hkxY
And the oldest known pencil in the world: https://www.penciltalk.org/2021/02/worlds-oldest-pencil
If you want to know more about that...