104 = Paper Spread and Pencil Lead

104 = Paper Spread and Pencil Lead

📃 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 1889 World Fair and that luxury yellow pencil you can do that here: https://www.artsy.net/article/artsy-editorial-little-known-reason-pencils-yellow

Here is the link to David’s MIT Maze turned Sudoku, Go check it out, it’s very cool: https://sudokupad.app/arbp91du01

If you’re on Patreon and have a creative Wizard offer to give Bec and Matt, please comment on the ‘Sup ‘Zards’ pinned post!

If you want to (we’re not forcing anyone) please do leave us a review, show the podcast to a friend or give us a rating! Please do that. It really helps.


Finally, if you want even more from A Problem Squared you can connect with us and other listeners on BlueSky, Twitter, Instagram, and on Discord.

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Episoder(138)

135 = Pasta Water Solution and QR Code Substitution

135 = Pasta Water Solution and QR Code Substitution

🍝 Why do we put salt in pasta water?👾 Can you put bespoke characters in to a QR Code?🌼And Spring Has Sprung (in the UK) so there’s some Any Other BloomsnessHead to our socials to see some frankly-v...

25 Mai 51min

134 = Tooth and Rock Day 2026

134 = Tooth and Rock Day 2026

🤘To mark the May Birthday of Dwayne 'The' 'Tooth Fairy' 'Rock' Johnson, Episode 134 is a Tooth and Rock Special!🪨 Matt answers your rock-based queries and shares a Salt of the Perth update🦷 Bec and...

11 Mai 1h 21min

133 = Oeuf-Bran Geometry and Huffman Decoder Tree

133 = Oeuf-Bran Geometry and Huffman Decoder Tree

🥣 What percentage of a box of Weet-Bix is wheat again?🥚 What shape is an egg? 💬 What’s the most efficient way to write your name on a Pop-it Fidget Toy?👎 And would you like some AOB? We won’t take...

27 Apr 1h 1min

132 = Insistuvree and Bix of Weet

132 = Insistuvree and Bix of Weet

🔠 Are there any English words containing four letters in alphabetical order?🥣 What percentage of a box of weet-bix is wheat?🎪 And there is some any other bah-bah-bahbahbahbah-buh-buh-businessHead t...

13 Apr 52min

131 = Microwave Conventions and Pythagoral Dimensions

131 = Microwave Conventions and Pythagoral Dimensions

👋 When microwaving food, should you place it in the centre, or off to the side?📐 Does the longest diagonal in a 1m sided cube in 4D square equal root 4? 🐨 And there’s some Bonus Other Business.Head...

30 Mar 1h 2min

130 = Sly Skittles Claim and Why Sniffles Name?

130 = Sly Skittles Claim and Why Sniffles Name?

🌈 Is it true that "No Two Packs Of Skittles Are The Same?”🤧 Why a cold called cold?🤫 And there’s some ASMROBHead to our socials to see Matt’s Mission Patches, Matt’s Calculator, and the Skittles Co...

16 Mar 53min

129 = People off Ground and Pound for Pound

129 = People off Ground and Pound for Pound

🛫 How many people are flying in the air at any given moment?⚖️ What weighs a pound and costs a pound?🏈 And there’s some Any Other (Foot)BallnessHead to our socials to see Bec’s glasses 🤓Pat Patriot...

2 Mar 54min

128 = AMA 2^7 Special

128 = AMA 2^7 Special

❓ Have you sent in a question for our AMA episode?❔ Have Matt and Bec answered it in this AMA episode?⁉️ Here are your AMA questions, answered!We’ll be back solving your problems as normal in Episode ...

16 Feb 51min

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