Coffee

[Cyberus]

Right, you've just made yourself a cup of coffee when the phone rings. You're expecting the call, and know that it'll take 5 mins. In this time, you are worried that your coffee will get cold.
You take milk in your coffee, but you have to make the decision - do you put the milk in now, thus making the coffee cooler and thus meaning there is smaller temperature difference between coffee and the air, or do you think it'll be hotter if you wait until after the call and then put the milk in?



I couldn't resist posting this - its about coffee and its the first post in this forum, woohoo! ;-)

[that_punk_guy]

I'd become vegan like me, and drink it black. ;-)

And it'd be tea, actually. Too much coffee is bad for you.

:-D

[Cyberus]

As you probably know, I don't drink coffee often at all, and when I do its without milk... :-)

But as you say, tea's much better.

Everyone knows that coffee drinkers oppress the third world in any case ;-)

[that_punk_guy]

:lol:

Hmm, is milk heavier than coffee? If not, you could pour it in gently, and if it stayed at the top while you were busy, the milk would be warmed by contact with the coffee and the air above.

Or alternatively, while you're on the phone, microwave the milk.

:-)

[KennyR]

Cyberus wrote:
You take milk in your coffee, but you have to make the decision - do you put the milk in now, thus making the coffee cooler and thus meaning there is smaller temperature difference between coffee and the air, or do you think it'll be hotter if you wait until after the call and then put the milk in?

Actually it will still cool in the same time. The temperature gradient only defines the rate of cooling, and is a geometric function. As the temperature falls back towards room temperature its rate of cooling will decrease anyway. If you form functions from both the black and white coffee temperature loss over time, the 1st order differential will be equivalent.

And to answer the original question, I just wouldn't answer the phone.

[Cyberus]

Hmph, I put this in the science and technology forum, because it is science - even if I did this problem for GCSE physics when I was fifteen. Booo, I wanted to be the first person to post in the science forum and I thought that this was a nice topic to do it with.

Kenny, it was meant as a rhetorical question.

[T_Bone]

Cyberus wrote:
Right, you've just made yourself a cup of coffee when the phone rings. You're expecting the call, and know that it'll take 5 mins. In this time, you are worried that your coffee will get cold.
You take milk in your coffee, but you have to make the decision - do you put the milk in now, thus making the coffee cooler and thus meaning there is smaller temperature difference between coffee and the air, or do you think it'll be hotter if you wait until after the call and then put the milk in?



I couldn't resist posting this - its about coffee and its the first post in this forum, woohoo! ;-)

The coffee will remain hotter longer if you put in the milk right away.

Should I explain why?

[Speelgoedmannetje]

that_punk_guy wrote:
I'd become vegan like me, and drink it black. ;-)

Of course you drink coffee black. You ain't do milk and sugar in any other beer or soda do you?

And it'd be tea, actually. Too much coffee is bad for you.

:-D

I know I know, today I got a little coffee overdose.

Ah tea, I love it either.

[KennyR]

Kenny, it was meant as a rhetorical question.

I know.

[bloodline]

that_punk_guy wrote:
I'd become vegan like me, and drink it black. ;-)

And it'd be tea, actually. Too much coffee is bad for you.

:-D

But Tea casues throat cancer :-/ (The moral is that Both Tea and Coffee are equaly good for you)

I drink Ginger and Sorrel Tea, that's nice :-)

[KennyR]

[cecilia]

mmmmmm, [color=00FF00]Green[/color] tea.....

[Vincent]

I would do the following in this order:

1) answer the phone

2) (while talking on the cordless phone) pour the milk into the tea/coffee (whichever I feel like that day)

3) drink the tea/coffee without slurping while still on the phone.

There, easy as that :-P

I used to be a big tea drinker, then I was a big coffee drinker, now I'm turning back to tea again :-)

[sumner7]

Cyberus wrote:
Right, you've just made yourself a cup of coffee when the phone rings. You're expecting the call, and know that it'll take 5 mins. In this time, you are worried that your coffee will get cold.
You take milk in your coffee, but you have to make the decision - do you put the milk in now, thus making the coffee cooler and thus meaning there is smaller temperature difference between coffee and the air, or do you think it'll be hotter if you wait until after the call and then put the milk in?



I couldn't resist posting this - its about coffee and its the first post in this forum, woohoo! ;-)

If you're worried about your coffee getting cold, PUT IT IN THE MICROWAVE! :-D

[bloodline]

Why not use Uranium filings rather than sugar?