the "ask crazychemgirl a question" thread

[thør]

Imagine, if you will, a perfectly spherical world where a ring of nocutium must be installed around the equator. Nocutium can be welded, but not cut. The last piece of nocutium is exactly 20 feet too long to make the perfect circle. How high around the world must the centerline of the nocutium ring be lifted in order to make the final weld?

 

[crazychemgirl]

Imagine, if you will, a perfectly spherical world where a ring of nocutium must be installed around the equator. Nocutium can be welded, but not cut. The last piece of nocutium is exactly 20 feet too long to make the perfect circle. How high around the world must the centerline of the nocutium ring be lifted in order to make the final weld?

Ouch my brain.

 

[thør]

Ouch my brain.

Your brain will enjoy the dopamine when you figure it out. It's a very simple problem, and it doesn't matter what diameter the world is (that last part is a huge hint).

 

[stickygirl]

Imagine, if you will, a perfectly spherical world where a ring of nocutium must be installed around the equator. Nocutium can be welded, but not cut. The last piece of nocutium is exactly 20 feet too long to make the perfect circle. How high around the world must the centerline of the nocutium ring be lifted in order to make the final weld?

It doesn't need to be lifted, simply overlapped

 

[LittleSwitchy]

Your brain will enjoy the dopamine when you figure it out. It's a very simple problem, and it doesn't matter what diameter the world is (that last part is a huge hint).

It’s all about the size.

Smartass grins

 

[stickygirl]

Dear Chem person
please explain this witchcraft

 

[thør]

It doesn't need to be lifted, simply overlapped

There is no lap joint in a ring unless it's from a Cracker Jack box.

 

[stickygirl]

There is no lap joint in a ring unless it's from a Cracker Jack box.

Now you're just being picky. You're the one that avoided mentioning the diameter of this theoretical world or if the world was composed of similar geographical masses and tectonic plates orbiting a similar sized sun. I claim my prize or I'm writing to someone further up.

I suppose an alternative answer, avoiding your sniffiness over joints, is that it doesn't need to be lifted, just laid flat on any surface that isn't affected by the heat of the welding process: a perfectly spherical world made of polystyrene would not make a suitable surface. You haven't mentioned what it's made of.

 

[thør]

Now you're just being picky. You're the one that avoided mentioning the diameter of this theoretical world or if the world was composed of similar geographical masses and tectonic plates orbiting a similar sized sun. I claim my prize or I'm writing to someone further up.

I suppose an alternative answer, avoiding your sniffiness over joints, is that it doesn't need to be lifted, just laid flat on any surface that isn't affected by the heat of the welding process: a perfectly spherical world made of polystyrene would not make a suitable surface. You haven't mentioned what it's made of.

It's made of nocutium, a fictional material that cannot be cut. It does not matter if the world is 8000 miles in diameter or a mile, or a foot, the distance is the same. If you think too hard about it you will slap yourself when the answer comes. It's simple algebra.

 

[stickygirl]

It's made of nocutium, a fictional material that cannot be cut. It does not matter if the world is 8000 miles in diameter or a mile, or a foot, the distance is the same. If you think too hard about it you will slap yourself when the answer comes. It's simple algebra.

But if it cannot be cut how did it end up 20 feet too long?
I've a feeling this won't end well

 

[thør]

But if it cannot be cut how did it end up 20 feet too long?
I've a feeling this won't end well

"The last piece of nocutium is exactly 20 feet too long to make the perfect circle."

It was made that way. This is not the Kobayashi Maru. There is an answer.

 

[stickygirl]

"The last piece of nocutium is exactly 20 feet too long to make the perfect circle."

It was made that way. This is not the Kobayashi Maru. There is an answer.

Why do I fall for these things? Jaime has wisely ducked this but questions like this are a wet finger in my ear. I'm annoyed that I've had to look this up, but discovered stuff about Euclid we were never taught in school, because I wasn't alive in 300BC, Thor.
It's our old friend π innit or rather 2π.
So 2 x π x A = 20 feet
π x A =10 feet
A = 10/π, which is about the height of a workbench. How many workbenches, measuring 3 feet across would you need to support your wretched ring?
I stand by my previous answers, which are entirely correct, but I hope this means you can stop licking your finger or stick it somewhere more pleasant.

 

[thør]

Why do I fall for these things? Jaime has wisely ducked this but questions like this are a wet finger in my ear. I'm annoyed that I've had to look this up, but discovered stuff about Euclid we were never taught in school, because I wasn't alive in 300BC, Thor.
It's our old friend π innit or rather 2π.
So 2 x π x A = 20 feet
π x A =10 feet
A = 10/π, which is about the height of a workbench. How many workbenches, measuring 3 feet across would you need to support your wretched ring?
I stand by my previous answers, which are entirely correct, but I hope this means you can stop licking your finger or stick it somewhere more pleasant.

There ya go, 10/π. Easy peazy.

Workbench height depend on the task. I have one at counter height (36"), but it's actually fairly useless for heavy work because it's too high. Still, the old cabinets underneath it made for an economical base. My woodworking bench is at 32" so I can comfortably use a plane or otherwise on objects clamped to the bench. If it's too low, it's always easy to put in a block of wood to raise things up.

 

[stickygirl]

There ya go, 10/π. Easy peazy.

Workbench height depend on the task. I have one at counter height (36"), but it's actually fairly useless for heavy work because it's too high. Still, the old cabinets underneath it made for an economical base. My woodworking bench is at 32" so I can comfortably use a plane or otherwise on objects clamped to the bench. If it's too low, it's always easy to put in a block of wood to raise things up.

That's admirable - choosing the correct height for working is super important. However I asked about the number of benches 10/π feet high and 36" across required to support the ring while being welded on the theoretical world in question.

 

[crazychemgirl]

Dear Chem person
please explain this witchcraft

Oooh chemistry.

 

[crazychemgirl]

Sorry guys my mental capacity lately is at maximum load… I’m dealing with some issues. Thanks for being awesome

 

[stickygirl]

Sorry guys my mental capacity lately is at maximum load… I’m dealing with some issues. Thanks for being awesome

No need to apologise hone - we've all got real lives that mess with us. Thor's question was maths anyway Take care x

 

[thør]

That's admirable - choosing the correct height for working is super important. However I asked about the number of benches 10/π feet high and 36" across required to support the ring while being welded on the theoretical world in question.

A non-issue. Nothing was said about mass or gravity.

 

[cascadiabound]

I've done everything I can think of to get my dog, who usually eats with enthusiasm, to eat his kibble. Any suggestions?

 

[thør]

 

[PlanetaryNebula]

I've done everything I can think of to get my dog, who usually eats with enthusiasm, to eat his kibble. Any suggestions?

Not crazychemgirl here but how long has your dog been off his food? Do you just feed him straight kibble? What kind?

 

[cascadiabound]

Not crazychemgirl here but how long has your dog been off his food? Do you just feed him straight kibble? What kind?

thanks Nebs
I have a siberian husky. He is 14-15 years old.
Right now he is getting the kind of kibble he has eaten for pretty much his whole life, now mixed half and half with a raw kibble product. On top of that I have been putting some dehyrated kibble turned to dust between my fingers as "sprinkles" on top - we have done that for years too.
He has eaten only a little bit of last evening's kibble - he gets food twice a day and is usually a pretty eager, clean the bowl promptly kind of dog.
I put a couple of raw carrot pieces on top cause he loves that (weird, I know), and he did eat those. Sometimes if I can get him to eat anything it gets him to eat the rest.
He has been less reliable about eating promptly the last couple months. But I cannot remember him ever eating so little in a 24 hours period.

 

[PlanetaryNebula]

thanks Nebs
I have a siberian husky. He is 14-15 years old.
Right now he is getting the kind of kibble he has eaten for pretty much his whole life, now mixed half and half with a raw kibble product. On top of that I have been putting some dehyrated kibble turned to dust between my fingers as "sprinkles" on top - we have done that for years too.
He has eaten only a little bit of last evening's kibble - he gets food twice a day and is usually a pretty eager, clean the bowl promptly kind of dog.
I put a couple of raw carrot pieces on top cause he loves that (weird, I know), and he did eat those. Sometimes if I can get him to eat anything it gets him to eat the rest.
He has been less reliable about eating promptly the last couple months. But I cannot remember him ever eating so little in a 24 hours period.

Could be a few things going on. I would take him to a vet. At his age you have to be cautious when they lose interest in food. I initially thought maybe his teeth could be bothering him but if he’s eating raw carrots, it’s probably not that. Do you add a little water? Soften it up a bit?
My dog is a very picky eater. We give her a little kibble but have had the best luck with fresh pet products. It’s dog food that has to be refrigerated. When my last dogs were getting to be of a certain age, cooking for them was what made them eat. Chicken mostly but also venison. Or scrambled eggs. Just let it cool down first and mix it in with his kibble. Even cooked carrots if he likes that. But if you haven’t already, get him checked out when you can. Also boiled hamburger and white rice is great if a dog has an upset tummy or not eating!! I hope this helps you and your pup!
Keep me posted

 

[cascadiabound]

Could be a few things going on. I would take him to a vet. At his age you have to be cautious when they lose interest in food. I initially thought maybe his teeth could be bothering him but if he’s eating raw carrots, it’s probably not that. Do you add a little water? Soften it up a bit?
My dog is a very picky eater. We give her a little kibble but have had the best luck with fresh pet products. It’s dog food that has to be refrigerated. When my last dogs were getting to be of a certain age, cooking for them was what made them eat. Chicken mostly but also venison. Or scrambled eggs. Just let it cool down first and mix it in with his kibble. Even cooked carrots if he likes that. But if you haven’t already, get him checked out when you can. Also boiled hamburger and white rice is great if a dog has an upset tummy or not eating!! I hope this helps you and your pup!
Keep me posted

Thanks. Those are good suggestions. he seems a bit lethargic, but otw okay and not in pain. If he doesn't eat more, a vet appt is definitely in order on Monday.

 

[PlanetaryNebula]

Thanks. Those are good suggestions. he seems a bit lethargic, but otw okay and not in pain. If he doesn't eat more, a vet appt is definitely in order on Monday.

I wish you and your pup all the best