Random Discussion

[Alice B]

I'm in the tired club trying to get the garden in.

 

[OldFishKeeper]

Those of you in the 76 club may be trying to remember who those in the 27 club actually were...

 

[jaylach]

Just a thought/warning. I hope it isn't considered too crude.

Do you put bleach in your toilet to clean? If so never use the toilet to urinate without flushing a few times first. Urine has a high level of ammonia. Mix ammonia and chlorine (bleach) and the result is Chlorine gas that can actually be fatal if in a high enough concentration as it affects the function of lungs.

 

[Alice B]

since I have a septic tank I try to avoid using chlorine bleach and if I do use it to clean the toilet, I dump in a hefty amount of a professional chlorine remover before flushing the toilet.

 

[Essjay]

That's why I put a piece of paper on the cistern lid saying "USE ANOTHER TOILET" when I use bleach and never bleach them all at the same time. I always flush twice before removing the sign.

 

[WhistlingBadger]

Just another point in favor of going back to outhouses. I'll alert Mrs. Badger.

 

[gwand]

Most human urine is acidic. Human urine contains mostly ammonium due to the acidic pH. Unlike ammonia, ammonium does not react with bleach. But there are some people on special diets that have alkaline urine containing ammonia. There in lies the danger. So make sure you take the pH of your house guest before they use the toilet

 

[WhistlingBadger]

Most human urine is acidic. Human urine contains mostly ammonium due to the acidic pH. Unlike ammonia, ammonium does not react with bleach. But there are some people on special diets that have alkaline urine containing ammonia. There in lies the danger. So make sure you take the pH of your house guest before they use the toilet

Thanks. I needed another way to make house parties more awkward.

 

[gwand]

The API pH kit really serves a duel role.

 

[jaylach]

Thanks. I needed another way to make house parties more awkward.

I don't know... might be fun.

 

[Essjay]

Any physicists out there who could help with this question?

This is my understanding, is it correct?

It takes x amount of electricity to boil 100 ml cold tap water. So it takes 2x amount of electricity to boil 200 ml water.
If 200 ml are boiled using 2x electricity, 100 ml removed and the remaining 100 ml left to cool for an hour, then reboiled using around 0.5x electricity (as the remaining water is warm not cold), this takes 2.5x amount of electricity in total.


My brother-in-law visited recently. He gets up puts enough water in the kettle for 3 cups of tea, boils the kettle and makes one cup of tea. An hour later he reboils the water and makes another cup of tea. He leaves the remaining cup of water in the kettle in case anyone else wants to reboil it for a cup of tea or coffee.
If my husband and I want a hot drink, we put one cup of water in the kettle and use it all. The next person comes along a while later, puts one cup of water in the kettle, boils it and uses it all to make their drink.


I think my brother-in-law is wasting electricity. Is he?








(Not to mention he takes a block of cheese out of the fridge, leaves it for 3 hours to warm up, cuts a piece off then puts the rest of the now room temperature block back in the fridge. He likes brie "runny and slimey".
Why not take the cheese out of the fridge, cut a portion, put the rest back in the fridge then let the cut portion stand at room temperature for 3 hours? I'm going to say that next time he visits)

 

[CaptainBarnicles]

Any physicists out there who could help with this question?

This is my understanding, is it correct?

It takes x amount of electricity to boil 100 ml cold tap water. So it takes 2x amount of electricity to boil 200 ml water.
If 200 ml are boiled using 2x electricity, 100 ml removed and the remaining 100 ml left to cool for an hour, then reboiled using around 0.5x electricity (as the remaining water is warm not cold), this takes 2.5x amount of electricity in total.


My brother-in-law visited recently. He gets up puts enough water in the kettle for 3 cups of tea, boils the kettle and makes one cup of tea. An hour later he reboils the water and makes another cup of tea. He leaves the remaining cup of water in the kettle in case anyone else wants to reboil it for a cup of tea or coffee.
If my husband and I want a hot drink, we put one cup of water in the kettle and use it all. The next person comes along a while later, puts one cup of water in the kettle, boils it and uses it all to make their drink.


I think my brother-in-law is wasting electricity. Is he?








(Not to mention he takes a block of cheese out of the fridge, leaves it for 3 hours to warm up, cuts a piece off then puts the rest of the now room temperature block back in the fridge. He likes brie "runny and slimey".
Why not take the cheese out of the fridge, cut a portion, put the rest back in the fridge then let the cut portion stand at room temperature for 3 hours? I'm going to say that next time he visits)

I'm no physicist but if he's boiling enough water for more than one cuppa he better be making me a drink too that's how it works in our house anyway!

The cheese thing though I like it straight out the fridge personally but if he's like me and doesn't know how much cheese he'll want until he's satisfied, he may not be able to cut off a portion for later? He could always take off more than he thinks he might want and put the rest back but I suppose that's what he's doing by taking the whole block out

 

[Essjay]

It wouldn't be too bad if it was cheddar cheese but brie is a different matter. After he'd gone home I found the awful smell in the fridge was where the brie was, and when he'd put it back in the runny state it had leaked out of the wrapper and made a layer on the fridge shelf above my eye level where I couldn't see it without standing on a stool. So now when my husband buys brie I make sure it's kept on a plate so it can be cleaned up more easily.


I don't drink anything but water between meals so when my husband makes a coffee or cup-a-soup for himself he doesn't make anything for me. At mealtimes I usually make a 2 or 3 cup pot of tea (I have 2 cups with my lunch). And boil 2 or 3 cups water not a full kettle.

 

[Oldspartan]

Do not know about the science but know plenty about in-laws. I will leave it at that.

 

[fishorama]

My aunt-in-law didn't believe microwaved boiling water was the same as a tea kettle of boiling water. Maybe a tiny bit short on temp but she just liked to complain about anything I did. I once asked if I could help with dinner prep. Yes, I could dice onion. "How big? Like this?" OK, but then she cut each diced piece into 1/4s but made sure everyone knew I "helped" several times. What a Beach! We were "not at home" when she threatened to visit us after we moved a few hundred miles away. Ugh, in-laws indeed!