## Search found 227 matches

Fri Mar 15, 2013 12:51 am UTC
Forum: Logic Puzzles
Topic: A formula to work out a logic puzzle
Replies: 20
Views: 8395

### Re: A formula to work out a logic puzzle

Each person can only have 20% of their pennys in the same jar as someone else Would be clearer if it read: "No two people can have more than 20% of their pennies in the same jar as each other." For 5-9 coins per person, it's the same as saying two people cannot share more than 1 jar. For ...
Thu Mar 14, 2013 11:44 pm UTC
Forum: Logic Puzzles
Topic: A formula to work out a logic puzzle
Replies: 20
Views: 8395

### Re: A formula to work out a logic puzzle

Further thoughts Data coding theory may be a good avenue to get an answer that can be easily generalised For each person, you write down a binary code, where a 1 in position X denotes that the person has a coin in that cup. Eg for 5 people you get the following codes CupNo 1234567890ABCDE Pers 1 11...
Wed Mar 13, 2013 3:44 am UTC
Forum: Logic Puzzles
Replies: 128
Views: 80792

The first result on my 4th search attempt seems likely: http://en.wikipedia.org/wiki/Two_Pianos_Four_Hands

I always like throwing quotes in, and I was just lucky it was around something that happened to be part of the title. A play that's toured the world shouldn't be hard to find though.
Thu Mar 07, 2013 2:20 am UTC
Forum: Science
Topic: Science quotes
Replies: 5
Views: 1860

### Re: Science quotes

I found that it's commonly used unattributed, as an example of the false cause fallacy: http://google.com/search?q=%22false+cause%22+beat+drums+eclipse I can't find anything crediting it to Sagan. Making an awful racket during an eclipse was common in many cultures, so chances are someone made fun o...
Wed Mar 06, 2013 10:15 pm UTC
Forum: General
Topic: Do you Dream?
Replies: 33
Views: 10729

### Re: Do you Dream?

I normally remember dreams vividly when I wake up. If they were interesting enough, I go over them in my head so that I'll remember them later, but usually that only happens about once a week. A few months ago my allergies were really bad, and I had interesting dreams every day for a whole week. I h...
Fri Feb 15, 2013 1:58 am UTC
Forum: Science
Topic: Perpetual movement
Replies: 55
Views: 9093

### Re: Perpetual movement

Extending my logic, atoms have a lifespan, therefore even without termodynamics, no perpetual movement is possible. So if the atom decays into something else, it's no longer perpetual, even though the energy/momentum is conserved? We're fairly sure that electrons don't decay, so electrons hurtling ...
Fri Feb 15, 2013 1:24 am UTC
Forum: Logic Puzzles
Topic: Find a power outlet in a dark room
Replies: 22
Views: 8249

### Re: Find a power outlet in a dark room

First, put down the desk lamp. It's a waste of energy carrying it around while searching. I guess I'd resort to brute force starting with what's easiest to reach, instead of thinking about it too much. I like elasto's idea of writhing around naked on the floor, but how literally should we take ...
Tue Feb 12, 2013 4:14 am UTC
Forum: Science
Topic: What bug is this?
Replies: 15
Views: 3147

### Re: What bug is this?

I had a look on What's That Bug and found 2 possibilities that look similar:

http://www.whatsthatbug.com/2004/08/12/ ... ach-nymph/
http://www.whatsthatbug.com/2011/03/13/ ... australia/
Thu Feb 07, 2013 12:03 am UTC
Forum: General
Topic: If you had a time machine...
Replies: 11
Views: 5345

### Re: If you had a time machine...

I think I'd use it once for a short jump to get rich, and 'live a full life'. I'd save the other uses for when I'm old and looking to cause mischief. I'd go back and play Merzbow albums to Pythagoras. Maybe finish my days observing dinosaurs, if not riding them.
Wed Feb 06, 2013 11:27 pm UTC
Forum: General
Topic: Do you use the XPS format for anything?
Replies: 8
Views: 3799

### Re: Do you use the XPS format for anything?

Very occasionally an XPS file shows up at my work. I have the free program XPS Viewer installed on WinXP (I hadn't figured out I can open them in IE). Once or twice I've created XPS files for my own use, but only either because I had nothing installed to create PDFs at the time or they didn't work q...
Wed Feb 06, 2013 10:46 pm UTC
Forum: General
Topic: Midnight is the begining of the day
Replies: 18
Views: 4389

### Re: Midnight is the begining of the day

What about "Friday night at midnight"? Is that technically correct? Alternatively you could say "Saturday morning at midnight", I guess. :P I use Friday night to include basically any time from 5pm friday to ~4am saturday. Maybe that's not normal, I dunno. That's the way I think...
Thu Jan 17, 2013 10:59 am UTC
Forum: Music
Topic: How much of the music you listen to is really original?
Replies: 17
Views: 12362

### Re: How much of the music you listen to is really original?

I'd define a genre as a useful grouping of artists or tracks that share common elements. Preferably elements of the music itself rather than country of origin, era, etc. I agree that beyond that it's subjective. I want to discuss what defines ORIGINAL music. Like, truly original. Like, something som...
Wed Jan 09, 2013 3:47 am UTC
Topic: 1155: "Kolmogorov Directions"
Replies: 144
Views: 24247

### Re: 1155: "Kolmogorov Directions"

Epistemonas wrote:San José, California and Costa Rica are more populous than St Petersburg, Florida.

I think you've got it. At least, I can't find any above that pair. It was an interesting question.
Wed Jan 09, 2013 3:00 am UTC
Forum: General
Topic: You are the last person left on earth. What do you do?
Replies: 256
Views: 44977

### Re: You are the last person left on earth. What do you do?

I'd find something like a snow plough or grader and try to clear some roads (assuming there are crashed vehicles of the people who happened to be driving when they dropped dead). I'd try to find some houses that run on solar + wind power, and hope that I could keep enough freezers running to store f...
Tue Dec 11, 2012 10:09 pm UTC
Forum: General
Topic: I can't answer questions like "Would you X?" Is this normal?
Replies: 38
Views: 4995

### Re: I can't answer questions like "Would you X?" Is this nor

EdgarJPublius wrote:If there is a question to which 'it depends' is not a valid answer, I haven't found it yet.

Questions about physical objects perhaps. "Is that a Nancy Drew book?"
Thu Dec 06, 2012 10:43 pm UTC
Forum: General
Topic: Life the universe and everything
Replies: 26
Views: 4263

### Re: Life the universe and everything

Although Arthur interprets the ultimate question to mean there's something fundamentally wrong with the universe, I prefer to think that the question is incorrect due to the calculation being interrupted. So a correct question exists, but any attempt to discover it will be thwarted, which fits well ...
Wed Dec 05, 2012 11:28 pm UTC
Forum: General
Topic: What will finish off humanity?
Replies: 19
Views: 2257

### Re: What will finish off humanity?

Death of the universe. I think we are creative enough to deal with the other challenges, but I wouldn't bet on us outliving the universe.

Maybe we could be finished off multiple times - reduced to just frozen sperm and eggs, and then brought back to life by robots or another species.
Wed Dec 05, 2012 9:04 pm UTC
Forum: General
Topic: Life the universe and everything
Replies: 26
Views: 4263

### Re: Life the universe and everything

eSOANEM wrote:The universe makes a lot more sense if you just accept that ultimate answer is wrong.

This whole topic is about the scenario where the answer is 42. You're just being a party pooper!
Wed Dec 05, 2012 3:48 am UTC
Forum: General
Topic: Life the universe and everything
Replies: 26
Views: 4263

### Re: Life the universe and everything

Two possibilities I'd start with: - Arthur Dent's brain had the right formula, but the wrong values. The equation would look like A x B = 42. Now figure out which is more useful out of 21 x 2, 14 x 3 and 7 x 6. - Arthur Dent's brain had the wrong formula, but (maybe) the right values. You could keep...
Tue Dec 04, 2012 11:57 pm UTC
Forum: What If?
Topic: What-If 0023: "Short Answer Section II"
Replies: 80
Views: 21021

### Re: What If 23: Short Answer Section II

Aerodynamics aside, I’m curious what tactical advantage you’re expecting to gain by having the high explosive fly back at you if it misses the target. A C4 boomerang would be great! :P To be more precise, a boomerang-shaped C4 package with a hard shell (made of something light that shrapnels well),...
Wed Oct 31, 2012 7:20 am UTC
Forum: What If?
Topic: What-If 0018: "B.B. Gun"
Replies: 59
Views: 17264

### Re: What-If 0017: BB Gun

A 115 car coal train has six power units at 200 tons each, with cars loaded to 120 tons, for a total weight of 15000 tons. Assume it is moving 60 miles per hour, 26.8 meters per second. Total momentum, 400000 ton-meters/second. A 4000m/s, 200 ton ball bearing contains 800000 ton-meters per second o...
Mon Sep 24, 2012 12:44 am UTC
Topic: 1110:"Click and Drag"
Replies: 595
Views: 666011

### Re: 1110:"Click and Drag"

I'm working on a deepzoom version (it's taking an age to render) Will randall be ok with me hosting it? Don't really want to get sued :-) /Edit: Here is the url for the deepzoom version: http://clickanddrag.azurewebsites.net Very nice! The shape of the thing lends itself a lot better to exploring b...
Wed Aug 22, 2012 4:46 am UTC
Forum: What If?
Topic: What-if 0008: "Everybody Jump"
Replies: 155
Views: 48290

### Re: What-if 0008: Everybody Jump

I'm guessing a baby or two would be born in mid-air. And if this was a planned event (On X day in the future, everyone will be magically transported to this area to make a leap for one very special episode of Mythbusters), how much lead time and money would be needed to plan out and setup some logis...
Wed Aug 15, 2012 10:47 am UTC
Forum: What If?
Topic: What-if 0007: "Everybody Out"
Replies: 350
Views: 61685

### Re: What-if 0007: Everybody Out

"No matter how we do it, whether we use rockets or a cannon or a space elevator, moving a 65-kilogram person—or 65 kilograms of anything—out of the Earth’s gravity well requires at least this much energy. Gravitational potential energy=1/2*65kg*(Earth escape velocity)^2" Not quite. First ...
Wed Aug 08, 2012 7:42 am UTC
Forum: What If?
Topic: What-if 0006: "Glass Half Empty"
Replies: 94
Views: 43387

### Re: What-if 0006: Glass Half Empty

optimists will see the glass half full because they believe the glass will eventually be filled, to be whole, to reach a state greater than the one it's currently in. It WAS empty which was an optimist would say is an awful state to be in, but it has already achieved so much by becoming half full, ...
Mon Jun 20, 2011 6:07 am UTC
Topic: 0914: "Ice"
Replies: 92
Views: 52675

### Re: 0914: "Ice"

Sonic# wrote:The AAA is also the American Association of Anatomists.

Hmmm, but do they also offer roadside assistance? I wonder if the kidneys are from car crash fatalities.
Wed May 04, 2011 11:21 am UTC