Hi, I'm trying to plot a dodecahedron on an ancient 3D program (VU-3D on the ZX Spectrum, in fact). What I need is a set of co-ordinates for the vertices, either absolute or relative... it doesn't...
Occasionally, my digital tv and Digibox make loud popping and cracking noises, caused by poor reception. What is actually making the sound? It seems much louder than the volume setting of the tv, and...
A curve is given by x=t2, y=t3. Find the eqn of the tangent with parameter u and the eqn of the normal to the curve at a pt whose parameter is v Find the parameter of the point where the tangent at...
Its remarkable how we can look back billions of years soon after creation. If all those events happened billions of years ago how do we know what happened to those events since?
THE CIRCUMFERENCE OF A CIRCLE IS 22/7 x THE DIAMETER SO ---IF YOU INCREASE THE DIAMETER OF A CIRCLE FROM 2 INCHES TO 3 INCHES,THE INCREASE IN CIRCUMFERENCE IS 3.142 INCHES. IF THE CIRCLE DIAMETER IS 1...
I want to know the formula for calculating the small circle distance ie distance round the earth of a parallel of latitude, using the numerical degree of that latitude and the actual circumference of...
Proper maths q coming up The reader will know that plugging in the co ordinate (p,q) into the eqn of a circle when (p,q) does NOT lie on the circle will return the length of a tangent to the circle...
How do you calculate the litres of oil in a tank from the dimensions of width and length and height of oil level and hence the current volume of the tank. This was no problem to me in school days but...
the question is find a and b in termns of n if the expansions of (1+x)n and exp ( ax/(1+bx)) are the same up to x2 (1+x)n is easyy 1 +nx + n(n-1)/2! x2 etc but the exponent : 1 + ax/1+bx +...
This theory is totally bugging me. James Hansen claims that at a future point of rising CO2, when the temperature reaches around +2.5C there will be a runaway increase with associated chaos. As I only...
Well,For 116 years it graced the halls of the National Museum of Wales at Cardiff—the fossilised skeleton of a 200m[illion]-year-old predator that once cruised the Jurassic seas,” says...
Is anyone any good with logic and boolean algebra? I have (PandQ)or(Rand S) and I'm trying to get step-by-step to the point where this this implies (PorR)and(QorS) using Boolean algebra, but I keep...
I am doing an electronic project about wireless data transmission, but my teacher wants something more complicated like wireless data transmission in both ways, besides the idea of the project needs...
How do I stop other recipients of an email sent to a number of people adding themselves to my address book, its driving me nuts !! Many thanks in advance !
A lorry is carrying a large cage full of birds which are all standing on the floor of the cage. If the birds decide to fly about in the cage will the weight of the lorry and its load change? Answer...
While walking my dogs this morning beside the lake I fell into a reverie. I imagined a time in the far distant future when most ABers were in Heaven. The atheists, though bemused, were as happy as...
