## Search found 8012 matches

- Fri Sep 29, 2006 3:04 am UTC
- Forum: Logic Puzzles
- Topic: A very interesting Mathematical Paradox
- Replies:
**387** - Views:
**155544**

- Fri Sep 29, 2006 1:10 am UTC
- Forum: Logic Puzzles
- Topic: A very interesting Mathematical Paradox
- Replies:
**387** - Views:
**155544**

...999 isn't infinite - it is very finite, it is exactly -1. I don't think limits come into it at all. 0.999... was never defined to me as a limit that converges, it was just said that the numbers repeat forever. You can't use operations defined only on real numbers in a proof to prove something is...

- Thu Sep 28, 2006 9:17 am UTC
- Forum: Logic Puzzles
- Topic: A very interesting Mathematical Paradox
- Replies:
**387** - Views:
**155544**

The main problem is that the number ...999 does not exist in the set of real numbers. However, it may be possible to define a superset that works in the way you describe, and examine the consequences of performing algebra in that set. Let's, for the purposes of argument, define a superset of Z , suc...

- Wed Sep 27, 2006 1:01 pm UTC
- Forum: Logic Puzzles
- Topic: infinitely small triangle
- Replies:
**12** - Views:
**8710**

- Wed Sep 27, 2006 9:39 am UTC
- Forum: Logic Puzzles
- Topic: Sum and Product Man
- Replies:
**27** - Views:
**15953**

Sum knew that Product didn't know the answer before anything was said. That means that it can't be 2 and 6, because all Sum knows is that the sum is 8, which means that for all he knows it could be 3 and 5, which would imply Product knew the numbers (being the only factorisation of 15). But Sum knew...

- Wed Sep 27, 2006 9:24 am UTC
- Forum: Logic Puzzles
- Topic: Monty Hall Problem [solution discussion]
- Replies:
**68** - Views:
**25668**

Two tactics I often use when people are confused by this problem: Just knocking down the paradox, without giving a solution: Probability says that if the result you're looking for is one result in a sample space of size n where the samples are all equivalent, the probability is 1/ n - the chance of ...

- Wed Sep 27, 2006 9:02 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0162: "Angular Momentum"
- Replies:
**103** - Views:
**58642**

- Tue Sep 26, 2006 4:31 am UTC
- Forum: Logic Puzzles
- Topic: A very interesting Mathematical Paradox
- Replies:
**387** - Views:
**155544**

- Mon Sep 25, 2006 9:43 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0162: "Angular Momentum"
- Replies:
**103** - Views:
**58642**

Well, in answer to the caption, lessee... Assuming for now that there's no air resistance or anything like that... she just starts spinning at the start of the night, slowing the Earth, and then stops spinning at the end, speeding the Earth back up again. This is probably not even remotely like what...

- Mon Sep 25, 2006 6:25 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0162: "Angular Momentum"
- Replies:
**103** - Views:
**58642**

This is incorrect? Each turn wouldn't rob the planet of angular momentum. Starting turning would rob the planet, but then the only thing that would allow additional turns to rob the planet of more angular momentum would be drag with the air (and this effect would also plateau). As long as you're tu...

- Mon Sep 25, 2006 5:43 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0162: "Angular Momentum"
- Replies:
**103** - Views:
**58642**

- Mon Sep 25, 2006 2:58 am UTC
- Forum: Logic Puzzles
- Topic: A very interesting Mathematical Paradox
- Replies:
**387** - Views:
**155544**