THE NOTICE BOARD JOE asks us: Why is the 4th dimension 'time' and is it possible that it is not time? Good question! To describe where you are in (3D) space, you need three dimensions e.g. x,y,and z. If you move around, these values change. Therefore Albert Einstein also said you need to define at what time you are at your stated position, and this became called a 4th dimension. In multi-dimensional space, this does not necessarily apply. You'll need to ask a 4th or 5th dimensional person what they think! LIA asks Blade Boccelli: What was the worst crime you ever committed? I once took a breadstick off Porky�s plate and ate it. If you ask Porky, that�s the WORST crime anyone can commit. Yours bravely, BladeTHEO tells the Pure Mathematicians: Here are two equations that use the numbers 1-9 in order... (12)x3 +4 -5 +6 -7 +8 = 9 and 1(2+3+4+5+6+7) + 8 = 9We LOVE the second one because you can adjust it for ANY string of numbers! Yours adjustingly, Winch, Kimpton and Janet. MATHSISLIFE asks Blade Boccelli: Why is your brother Porky so fat when you and One-Finger-Jimmy are so thin? Because Porky eats all our leftovers. In fact, if we're not looking, he even eats them before we've left them over. Yours slimmingly, BladeIEN asks us: Is there a real MM building and can I visit it?Bad news! Professor Fiendish was doing an experiment with some imaginary numbers and multiplied the building by the square root of minus one and now we can't find it. Sorry.OSCAR CHILDS told us something interesting: 1+2=3 is the only equation that uses three consecutive numbers in order... but then he found a better one! 12 + 3 = 4.TIMMY from NZ then came up with this: 1 x 2 x 3 x 4 = 5 x 6 - 7 - 8 + 9We've tried to think of another but we can't. We know things like 103+113+123 = 133+143 but those little threes mean it doesn't count. TITI asks us: How many types of triangle are there?Oooh ... there's acute triangles, obtuse triangles, right-angled triangles, isosceles triangles, equilateral triangles, fat triangles, pointy triangles, purple triangles, invisible triangles, grumpy triangles ... altogether it's 207 types we think. SIOBHAN asks The Pure Mathematicians: What's your typical day?Wake up. Sums. Breakfast. Sums. Lunch (if we don't forget). Sums. Tea. Sums. Watch Love Island. Sums. Bed. Dream of sums. Repeat. Yours summingly, Kinch, Wimpton and Janet 1r136t