## Search found 12 matches

Sat Jul 25, 2015 12:33 pm UTC
Forum: Science
Topic: Puzzling artifacts and reasonable reasoning
Replies: 79
Views: 14670

### Re: Puzzling artifacts and reasonable reasoning

ratios 1:4.5:9.4:1836:1838 I'd start with the two quarks - why should any ancient guy come up with exactly the ratio we currently measured for the quarks? Today we know quark masses to about +-30% precision and only ten years ago the quark masses were believed to be at least 50% higher than todays ...
Sat Jan 17, 2015 1:54 pm UTC
Forum: Science
Topic: "connecting" the earth and the moon
Replies: 24
Views: 6155

### Re: "connecting" the earth and the moon

Pfah! Moving the moon is too hard. Let's instead slow down the earth so that the moon's current orbit is now geosynchronous. Nobody will notice the difference, right? What's the estimated time scale for this to happen naturally? Maybe it's a perfect match with the time we need for designing and bui...
Sat Aug 02, 2014 1:30 pm UTC
Forum: Logic Puzzles
Topic: Two interesting puzzles (1 easy, 1 unsolved)[Solutions,etc.]
Replies: 5
Views: 4897

### Re: Two interesting puzzles (1 easy, 1 unsolved)[Solutions,e

... and with this it seems very likely the solution is
Spoiler:
'S' because those cities are located in Sweden, Spain, Switzerland, Saudi Arabia, South Africa, Slovakia, Sudan and Senegal
Mon Jun 28, 2010 12:14 am UTC
Forum: Science
Topic: Alpha decay and the line of stability
Replies: 9
Views: 2018

### Re: Alpha decay and the line of stability

That makes sense (both of you), but, just to be absolutely 100% sure, I'm referring to a graph with Neutron Number on the vertical axis and Proton Number on the horizontal. The line of stability curves above the N=Z line. So I think, asdfex, that your explanation matches up to 'below' on that graph...
Sat Jun 26, 2010 4:13 pm UTC
Forum: Science
Topic: Alpha decay and the line of stability
Replies: 9
Views: 2018

### Re: Alpha decay and the line of stability

"Above" is correct: The line of stability is mostly below the line of neutron number = proton number. In the alpha decay, two protons and two neutrons are expelled, thus the nucleus moves parallel to the line of neutron = proton number. If you are below the line of stability, this brings y...
Sun Jun 20, 2010 3:32 pm UTC
Forum: Coding
Topic: Manufactoria - Make Turing Machines with Conveyor Belts
Replies: 350
Views: 126761

### Re: Manufactoria - Make Turing Machines with Conveyor Belts

Thanks for the JS evaluation tool! I think there is a bug in the code that marks strings as incorrectly rejected. E.g. this code ?lvl=18&code=r10:2f3;q11:3f3;p10:3f2;r13:4f3;p12:4f3;b11:4f3;b10:4f1;c13:5f0;i12:5f6;c12:6f3;c12:7f3;c12:8f3;c12:9f3;c12:10f3;c12:11f3;c9:4f1;g8:5f1;q8:6f4;b9:5f3;p9:6...
Mon Mar 08, 2010 1:34 am UTC
Forum: Language/Linguistics
Topic: I wonder how many 1 syllable words...
Replies: 7
Views: 4179

### Re: I wonder how many 1 syllable words...

I would say that it would be easier to find the number for a language like Spanish or Italian, but monosyllables aren't nearly as important for them as they are for English. German? Maybe. German - definitely not easy. For example, "schrumpfst" (you shrink) or "schleichst" (you ...
Wed Dec 30, 2009 1:53 am UTC
Forum: Logic Puzzles
Topic: Lenny vs Penny
Replies: 9
Views: 2560

### Re: Lenny vs Penny

How do you figure? Optimal play is to play offensively when tied or behind, and defensively when ahead. With this strategy, Lenny can win if he wins the first game (45%) and then gets two ties playing defensively (81%), or another win playing offensively after losing a defensive gam...
Sat Sep 12, 2009 12:12 pm UTC
Forum: Logic Puzzles
Topic: Another inefficient code
Replies: 0
Views: 771

### Another inefficient code

Inspired by the topic title "Entirely inefficient code", which would also fit to this post, I would like to give you a code a friend and I came up with while we were in school: 8200713082071953097454130073519071953097130178621007290974541301796530759520017593071390971307146930100 Maybe som...
Fri Sep 11, 2009 11:21 pm UTC
Forum: Science
Topic: Life Expectancy
Replies: 21
Views: 2069

### Re: Life Expectancy

Normally, life expectancy is defined as the age in which a now born child will die. The numbers for someone born decades ago are different and are most likely increasing much slower.
Wed Jul 23, 2008 9:38 pm UTC
Forum: Science
Topic: How to ship energy from Alpha Centauri
Replies: 39
Views: 3713

### Re: How to ship energy from Alpha Centauri

Well, you don't have to accelerate the ship every time: If it does swing-by maneouvers both at the sun and at Alpha Centauri, you don't waste too much energy. The energy transfer from and to the ship can then be done using ordinary short-distance lasers. This setup is independent of the type of ener...
Sun Jul 06, 2008 12:28 am UTC
Forum: Logic Puzzles
Topic: Light board communication.
Replies: 16
Views: 2437

### Re: Light board communication.

I'm wondering, whether you can transport more information, when the receiver knows the initial state of the board as well... My feeling tells me that this is not the case since you only have 64 different options to switch a light, but who knows?