Inverted Whirlpools and Drag
[S1 Science and up - Forces] Ever seen something like this before? Maybe you have, if you fancied tea and stirred them often before. The...
Zeno's Dichotomy Paradox
[ P6 Maths and up: Number Patterns ] Kept you waiting, huh? Here's a mind-boggling puzzle for you to think through: Is this the first...
Rainbow Flames
[ P5 Science and Up: Light ] You're probably used to two types of flames around the household, or the home ec room: The orange flame you...