History of math: Sumerian multiplication table (2700 BC) Cuneiform multiplication table Once people in West Asia figured out how to write down numbers, about 3500 BC, they quickly began to want to use cuneiform to [...]
You can make a guitar out of a shoebox and rubber bands Begin by making some loud noises, like hitting a drum and clapping your hands. Can you feel the [...]
Math was a very exciting subject to be working on during the Middle Ages in Europe. Little by little, math experts in Europe were learning from Islamic math experts about what we call Arabic numbers (0,1,2,3,4,5,6,7,8,9) (though the [...]
Tangents: This line is tangent to a circle. What is a tangent? A tangent, like a sine or a cosine, is a mathematical way of thinking about a kind of movement that happens [...]
Sine wave In order to save energy, many, many things in nature move in a kind of repeated pattern we call a sine wave: water waves, sound waves, light waves, [...]
History of Math: Counting tokens from Mehrgarh in Late Stone Age India Indian counting tokens and base 10 The first Indian numbers appeared in the late Stone Age, about 4000 BC. Around this time, [...]
Antikythera mechanism: a clockwork machine to calculate how the earth and the sun move around When did Hipparchus live? Hipparchus was a Greek astronomer and mathematician in the 100s BC, in the time [...]
Central Asian science: A clay pot with a drawing of a wheeled cart from what is now Poland, about 3500 BC What was invented in Central Asia? Many of the [...]
