## Search found 17 matches

Wed Oct 03, 2012 11:22 am UTC
Topic: 1116: "Traffic Lights"
Replies: 171
Views: 47992

### Re: 1116: "Traffic Lights"

Alt Text:"There's an intersection I drive through sometimes that has a forward green arrow, a red light, and a 'no turns' sign all on one pole. I honestly have no idea what it's telling me to do." In Germany, this would depend on the style of the green arrow. Is it a light signal or a sig...
Wed Aug 08, 2012 9:44 am UTC
Forum: What If?
Topic: What-if 0006: "Glass Half Empty"
Replies: 94
Views: 44203

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

In Star Trek IV: The Voyage Home, didn't they teleport whales from the ocean into a tank? Wouldn't that have caused an instantaneous vacuum within the ocean and what effects would that have caused? Also, aren't they causing vaccums in the air every time they teleport around? Are the shockwaves caus...
Fri Aug 03, 2012 8:36 am UTC
Topic: 1090: "Formal Languages"
Replies: 90
Views: 30044

### Re: 1090: "Formal Languages"

The wiki page looks more complicated...can we get a layman's explanation? Ok, I'll try. We all know the word "grammar" from English class. It is a set of rules that tell us how we build sentences. In Computer Science, we distinguish between several types of grammars which are more or less...
Mon Jul 23, 2012 7:12 am UTC
Forum: What If?
Topic: What-If 0003: "Yoda"
Replies: 122
Views: 80406

### Re: What-If 0003: Yoda

I guess you're thinking about kWh, which is of course the unit of energy we should be looking for in the end. However, if I say that Yoda has a power of 18kW per hour, then that's kW/h, isn't it? Strange unit though. the Watt represents one Joule per second, or J/s. so a power of 18 kW 'per hour' w...
Wed Jul 18, 2012 6:25 am UTC
Forum: What If?
Topic: What-If 0003: "Yoda"
Replies: 122
Views: 80406

### Re: What-If 0003: Yoda

Qaanol wrote:
carolineee wrote:kW/h

These are not the units of power you are looking for.

I guess you're thinking about kWh, which is of course the unit of energy we should be looking for in the end.
However, if I say that Yoda has a power of 18kW per hour, then that's kW/h, isn't it? Strange unit though.
Tue Jul 17, 2012 10:22 pm UTC
Forum: What If?
Topic: What-If 0003: "Yoda"
Replies: 122
Views: 80406

### Re: What-If 0003: Yoda

Honestly, what use is that 18kW if you don't know how many X-Wings Yoda can lift per hour/day/year/whatever. If you're talking about green Yoda energy supply, you have to talk in kW/h and if he could on average lift 10 X-Wings per hour with breaks and without getting too tired, then that's 180kW/h, ...
Mon Jul 02, 2012 1:01 pm UTC
Topic: 1076: "Groundhog Day"
Replies: 107
Views: 26015

### Re: 1076: "Groundhog Day"

I wonder why this comic wasn't posted on Feb 2nd or 3rd or October 23rd. Wouldn't that have been more apropriate?
Wed Jun 27, 2012 7:13 am UTC
Topic: 1074: "Moon Landing"
Replies: 164
Views: 35764

### Re: 1074: "Moon Landing"

Okay, something doesn't fit here, unless RM is making a joke based on acceptance of the faked Moon landing conspiracy theory. Which he most likely is given that he would know a basketball-sized earth would have a baseball-sized moon about 30 feet away, not half an inch. (Why yes, I have been called...
Wed Jun 20, 2012 7:33 am UTC
Topic: 1071: "Exoplanets"
Replies: 176
Views: 49821

### Re: 1071: "Exoplanets"

If you want to contribute to the next level of this chart or are just in a state of "bored hanging around on the internet" go to http://www.planethunters.org/ and start hunting for planets. It's really nice for killing time and more useful than playing minesweeper or the like
Mon Jun 18, 2012 6:51 am UTC
Topic: 1070: "Words for Small Sets"
Replies: 238
Views: 49386

### Re: 1070: "Words for Small Sets"

somdude04 wrote:A dozen: 11-15

Plasma Mongoose wrote:A Dozen = 11-13

A dozen is 12, unless you're a baker.
Fri May 04, 2012 1:43 pm UTC
Topic: 1050: "Forgot Algebra"
Replies: 360
Views: 85567

### Re: 1050: "Forgot Algebra"

Trusting math to work out how much to pave an irregular shape is probably a bad idea. Working it out by cutting it up into smaller chunks and approximation will be less error prone - don't get me wrong, I'd do it via math, but I'd also cut it up and sanity check my work that way. But this cutting i...
Wed May 02, 2012 7:36 pm UTC
Topic: 1050: "Forgot Algebra"
Replies: 360
Views: 85567

### Re: 1050: "Forgot Algebra"

I so hate it when people are proud of saying "oh, I was never good at math" or "oh, I hated math in school" or "math is so difficult". They do it all the time, too, and on TV. I sometimes think the problem wouldn't be half so big if the celebrities would just stop tryin...
Sat Dec 17, 2011 1:19 am UTC
Topic: 0990: “Plastic Bags”
Replies: 183
Views: 38978

### Re: 0990: “Plastic Bags”

I'm from Germany. As some people already said, there's nobody packing anything for you in grocery stores and the like. Only bookshops and clothes stores ask you whether you want a bag or even gift wrapping. As I don't have a car, I do my shopping by bike (or rarely on foot) and those flimsy plastic ...
Fri Dec 09, 2011 8:38 am UTC
Replies: 175
Views: 64621

Over here, Last Christmas by Wham! is by far the most annoying Christmas song on the radio. I remember a 2h drive on dec 25th and having to switch radio stations every five minutes, because Last Christmas was being announced again.
Thu Dec 08, 2011 7:48 pm UTC
Forum: XKCD Meetups
Topic: fosdem anyone? 3rd-5th of February 2012, Brussels
Replies: 0
Views: 2985

### fosdem anyone? 3rd-5th of February 2012, Brussels

Who will be at the fosdem on February 3rd-5th 2012?
I can't promise to be on time for the beer event, but I'll sure be at the conference Saturday 10am to Sunday 5pm. It's my first time at the fosdem so I don't know when/where a good place and time to meet would be. Suggestions?
Fri Nov 25, 2011 7:27 am UTC
Topic: 0982: "Set Theory"
Replies: 55
Views: 14898

### Re: 0982: "Set Theory"

Hadn't heard of this method before although there are numerous "proof by ..." jokes among math students. I found this site for a list of them: http://www.onlinemathlearning.com/math-jokes-mathematical-proofs.html But they're missing the most widely used one, which is proof by coffee break:...
Mon Nov 21, 2011 7:53 pm UTC