I'm working on some game rules, and I have a math question I can't easily solve.
Let's say you have 7 cards numbered 1 through 7. You have two players. You split the cards between the two players. It is possible to split them in such a way that both players have the same total number when adding their cards together.
1 + 2 + 4 + 7 = 14 3 + 5 + 6 = 14
Is it possible to do this with the numbers 1 through 21? If so, how? If not, what is the closest to even that can be achieved?
I don't know enough about physics to know the optimal temperature for sublimation to occur in water. I just assumed it had an inverse relationship with temperature.
I don't know enough about physics to know the optimal temperature for sublimation to occur in water. I just assumed it had an inverse relationship with temperature.
Likely a direct relationship, I think. If you've got an ice cube at, say, 30° F, it won't melt:
But "an ice cube" isn't one object with one temperature, it's a ton of water molecules with a distribution of energies: The molecules with enough energy will fly away - that's sublimation.
If you make it colder, a smaller fraction of molecules will have enough energy to bust out:
Unless there's some spooky physics I'm forgetting, I would assume colder = slower sublimation.
If it's really a bell curve like that you would assume it would take a very long time for the cube to sublimate 100%. However, cubes in my freezer disappear completely over time, and the freezer is well below 0C.
How rapidly any substance sublimates not only depends on the temperature, but the ambient amount of it in the atmosphere. Is your freezer/apartment abnormally dry?
How rapidly any substance sublimates not only depends on the temperature, but the ambient amount of it in the atmosphere. Is your freezer/apartment abnormally dry?
Does anyone have a smart lock for their house or apartment? Any suggestions?
I'm thinking of getting one for my house. Do I need it? No but I think it's cool. I've read articles about how intruders can pick a smart lock. Anyone wanting to get into my house will eventually. I'm pretty sure it's just as easy to pick a regular lock or smash a window.
If it's really a bell curve like that you would assume it would take a very long time for the cube to sublimate 100%. However, cubes in my freezer disappear completely over time, and the freezer is well below 0C.
Your fridge probably has an automatic defrost cycle. It's stealing your ice cubes as a side effect of preventing it from frosting over: https://en.wikipedia.org/wiki/Auto-defrost
Does anyone have a smart lock for their house or apartment? Any suggestions?
I'm thinking of getting one for my house. Do I need it? No but I think it's cool. I've read articles about how intruders can pick a smart lock. Anyone wanting to get into my house will eventually. I'm pretty sure it's just as easy to pick a regular lock or smash a window.
Personally I wouldn't, but your house, man. I hear Kwikset and Schlage make the best offerings.
It loses x% of its mass and eventually comes back into thermal equilibrium with the freezer. Now the distribution is the same shape, just smaller.
Net effect is it has a half life, and decays until it turns into a speck.
If sublimation only occurs at the surface (which I'd assume but I don't know if this is true) and the walls of the ice cube tray are almost vertical, then you'd have the same exposed surface area as the ice cube disappeared, so you might have roughly linear decay for a while.
Comments
1) Does anyone have a MSDN and can part with one Windows 10 Pro 64 bit license?
2) If 1 is not answered what is the most reliable source of getting keys for Win 10 that is legitimate?
This is what I'm thinking of getting: http://www.timbuk2.com/commute-tsa-ipad-laptop-messenger-bag/208-4-2628.html
I went full custom this time, just like last time. Why get a lame-o mass produced one when you can get one that's unique to you!
Let's say you have 7 cards numbered 1 through 7. You have two players. You split the cards between the two players. It is possible to split them in such a way that both players have the same total number when adding their cards together.
1 + 2 + 4 + 7 = 14
3 + 5 + 6 = 14
Is it possible to do this with the numbers 1 through 21? If so, how? If not, what is the closest to even that can be achieved?
Also: is it possible with 4 players instead of 2?
1 + 2 + 6 + 7 + 9 + 10 + 12 + 13 + 17 + 18 + 21 = 116
1 + 3 + 4 + 5 + 8 + 11 + 14 + 15 + 16 + 19 + 20 = 116
1+3+4+7+8+11+12+15+16+19+20=116
1+2+5+6+9+10+13+14+17+18+21=116
Or if you want to minimize the large gaps between numbers (like 12->15) give one side the low value odds and the other side the high value odds.
1+2+4+6+8+10+13+15+17+19+21=116
1+3+5+7+9+11+12+14+16+18+20=116
But "an ice cube" isn't one object with one temperature, it's a ton of water molecules with a distribution of energies:
The molecules with enough energy will fly away - that's sublimation.
If you make it colder, a smaller fraction of molecules will have enough energy to bust out:
Unless there's some spooky physics I'm forgetting, I would assume colder = slower sublimation.
Net effect is it has a half life, and decays until it turns into a speck.
I'm thinking of getting one for my house. Do I need it? No but I think it's cool. I've read articles about how intruders can pick a smart lock. Anyone wanting to get into my house will eventually. I'm pretty sure it's just as easy to pick a regular lock or smash a window.
Your fridge probably has an automatic defrost cycle. It's stealing your ice cubes as a side effect of preventing it from frosting over: https://en.wikipedia.org/wiki/Auto-defrost
Maybe this is common but I have very limited interactions with Reddit since I hate basically everything about it.
EDIT: Warbits is the fourth post on that subreddit.
Once made up a subreddit for a sake of joke or argument, don't remember which. And about two seconds later the subreddit came to being.