Strip of LEDs in a slow shutter
More from Chalkdust
Top ten vote issue 13
Have your say
My life with mathematical tattoos
... and how Chalkdust played a role in one of them
Cardioids in coffee cups
Staring at your coffee, you wonder whether the light reflecting in cup really is a cardioid curve...
Forget a new £1 coin, we need a £1.23 coin
Not the new coin we want, but the new coin we need
Is MEDUSA the new BODMAS?
Why the infamous acronym needs revising.
Analogue computing: fun with differential equations
Solving differential equations instantaneously, using some electrical components and an oscilloscope