Nice people thread part 8 - worth the wait

Nikkster

LydiaJ wrote: »

It's no trouble. It's the kind of thing they set exam questions about - dead easy versions of the calculations for GCSE and more complicated ones at AS/A2. Can I use you as an example in my class this autumn??

I think its 75Se (used in SeHCAT)

lostinrates

LydiaJ wrote: »

It's no trouble. It's the kind of thing they set exam questions about - dead easy versions of the calculations for GCSE and more complicated ones at AS/A2. Can I use you as an example in my class this autumn??

Yes.

Nikkster understood it too. I just don't remember what she said. I think she said so etching about half life.

I am especially forgetful ATM

lostinrates

Nikkster wrote: »

I think its 75Se (used in SeHCAT)

Oh, there she is, you see.

Nikkster

lostinrates wrote: »

Yes.

Nikkster understood it too. I just don't remember what she said. I think she said so etching about half life.

I am especially forgetful ATM

I think I said along the lines of:
I think the 'dose' of radiation is pretty small compared to the background we all experience over the course of a year. I think that most of the dose that will be excreted, will have gone down the loo in the first 24 hours.
That was my interpretation of wikipedia/ the instruction of sit-down-toilet-trips only for the first 24 hours

lostinrates

Really don't understand why mac punter hates the word something and prefers so etching.

lostinrates

Nikkster wrote: »

I think I said along the lines of:
I think the 'dose' of radiation is pretty small compared to the background we all experience over the course of a year. I think that most of the dose that will be excreted, will have gone down the loo in the first 24 hours.
That was my interpretation of wikipedia/ the instruction of sit-down-toilet-trips only for the first 24 hours

Oh yes, that's it.

I also cannot remember which way round it is. Either , if the bod works then at the end of week one I still have some radio activity, if it doesn't I don't because my body has got rid of it all too quickly. Or the other way round. I dunno. I'll remember when I need to. It's not a need to until its relevant.

GDB2222

neverdespairgirl wrote: »

I don't think that's quite right. OH owns a whole plane, not 1/8th one, and the cost to him of flying is about £450 a year, taken on average over the past 3 years, and he flies a lot. There is also an opportunity cost from the money tied up in the plane, which cost £25,000 in 2005.

OH owns it, and uses it whenever he likes. It's rented by a flying school, who use it to teach people to fly, and pay per hour. The flying school also organises all the maintenance and airworthyness certificates.

OTOH, the plane presumably becomes more or less valueless over its lifetime. So, at some point he has to write off the £25k. That has to be added to the £450 a year cost you mentioned. Even so, it sounds an *extremely* cheap way to fly.

Nikkster

lostinrates wrote: »

Oh yes, that's it.

I also cannot remember which way round it is. Either , if the bod works then at the end of week one I still have some radio activity, if it doesn't I don't because my body has got rid of it all too quickly. Or the other way round. I dunno. I'll remember when I need to. It's not a need to until its relevant.

Wikipedia says that over 15% remaining in the body after 7 days is normal, less suggests excessive bile acid loss.

LydiaJ

Nikkster wrote: »

I think I said along the lines of:
I think the 'dose' of radiation is pretty small compared to the background we all experience over the course of a year. I think that most of the dose that will be excreted, will have gone down the loo in the first 24 hours.
That was my interpretation of wikipedia/ the instruction of sit-down-toilet-trips only for the first 24 hours

lostinrates wrote: »

Oh yes, that's it.

I also cannot remember which way round it is. Either , if the bod works then at the end of week one I still have some radio activity, if it doesn't I don't because my body has got rid of it all too quickly. Or the other way round. I dunno. I'll remember when I need to. It's not a need to until its relevant.

Yes, that's my interpretation of the available interweb data too. It's a long half-life isotope (119days) because they want to see how quickly your body eliminates it, so it needs to stay radioactive for long enough for them to scan you when they give it to you and again a week later. You're supposed to retain it unless there's something wrong with you making you lose more bile than you should. So yes, the poo that you produce during that time will remain radioactive for months.

But, as Nikkster says, the dose is very very low, and by the time it's been diluted by the water recycling, it'll be negligible compared with natural background radiation anyway. Swimming in the cake will probably still expose you to less radiation than going to a granite area like Cornwall, or eating lots of bananas or something. The decay chain is very short - just one gamma ray before it gets to something stable - and gamma rays are the least damaging type of radiation (although they can travel a long way and get through things). I wouldn't have thought it would be worth the trouble of getting a portaloo.

[X-posted with Nikkster]

PasturesNew

Just been sorting out my hard drive for the last hour.... got a "low on disk space" error, which meant I had to ensure the recycle bin was emptied, search for big files I didn't think I needed, run disk cleanup, run CCleaner, reboot a couple of times..... still not enough spare for a defrag though. Currently C: is 23GB, with 1.88GB spare. Defrag would like 15%, tried running it anyway, which it did, but didn't make much difference.

When I search for "all big files" there's stuff in there I wish I could just delete.... but it's probably system files