Jim Darby
@mathswithjim.bsky.social
I know of a school with some isotope samples they no longer want. Do you know someone who could do that? I'm thinking back to EMFcamp.
January 8, 2026 at 4:43 PM
I know of a school with some isotope samples they no longer want. Do you know someone who could do that? I'm thinking back to EMFcamp.
That's pretty much what I've done. Having a good IFA is a big win.
January 4, 2026 at 12:32 PM
That's pretty much what I've done. Having a good IFA is a big win.
What's interesting here is that it's a rich source of maths real-world examples.
January 4, 2026 at 12:22 PM
What's interesting here is that it's a rich source of maths real-world examples.
I totally get that. Stocks and shares are a long term investment and can be a bumpy ride. I've done well over a period of decades but there have been periods where cashing out would have cost me dear. I'm looking at _you_ the mid 90s!
January 4, 2026 at 12:20 PM
I totally get that. Stocks and shares are a long term investment and can be a bumpy ride. I've done well over a period of decades but there have been periods where cashing out would have cost me dear. I'm looking at _you_ the mid 90s!
I'm surprised that you don't like stocks and shares ISAs, mine have done very well; much better than the cash ISA I had.
January 4, 2026 at 12:12 PM
I'm surprised that you don't like stocks and shares ISAs, mine have done very well; much better than the cash ISA I had.
May I recommend reading Robin Ince's book Weirdly Normal and Normally Weird?
December 31, 2025 at 9:21 AM
May I recommend reading Robin Ince's book Weirdly Normal and Normally Weird?
It's an interesting optimisation problem. In the '90s crash I "lost" £15k. However, by biding my time it more than recovered. Critically the option of being able to bide your time is _essential_ .
November 29, 2025 at 1:17 PM
It's an interesting optimisation problem. In the '90s crash I "lost" £15k. However, by biding my time it more than recovered. Critically the option of being able to bide your time is _essential_ .
I've got some money in stocks and shares. With careful planning and risk management it can be a good option. It's certainly made me more money than a cash ISA.
November 29, 2025 at 1:09 PM
I've got some money in stocks and shares. With careful planning and risk management it can be a good option. It's certainly made me more money than a cash ISA.
Oddly, in the world of film, a foot is a unit of time. On 35mm film there are about 90 feet in a minute.
Now you can really confuse your students!
Now you can really confuse your students!
November 15, 2025 at 7:34 AM
Oddly, in the world of film, a foot is a unit of time. On 35mm film there are about 90 feet in a minute.
Now you can really confuse your students!
Now you can really confuse your students!
Have you looked at second hand?
October 5, 2025 at 4:47 PM
Have you looked at second hand?
Combined with the intelligence it's even worse. It's _planning_!
September 13, 2025 at 1:29 PM
Combined with the intelligence it's even worse. It's _planning_!
The sheep isn't really a sheep anymore. What it is now is... Concerning.
September 13, 2025 at 7:23 AM
The sheep isn't really a sheep anymore. What it is now is... Concerning.
Well that's rather nice of you! But in that case, where did the table come from? I'm thinking this would be *great* to use as an example in GCSE statistics lessons. Or, indeed, in general…
September 1, 2025 at 8:26 AM
Well that's rather nice of you! But in that case, where did the table come from? I'm thinking this would be *great* to use as an example in GCSE statistics lessons. Or, indeed, in general…
Looks like it needs 10 downloads, one for each maths grade. Then for each grade fill in a database column.
September 1, 2025 at 8:12 AM
Looks like it needs 10 downloads, one for each maths grade. Then for each grade fill in a database column.
Is there a way to get this data in a machine readable form? For example a spreadsheet...
September 1, 2025 at 6:50 AM
Is there a way to get this data in a machine readable form? For example a spreadsheet...
Anytime before midday should be good! 😀
August 29, 2025 at 2:29 PM
Anytime before midday should be good! 😀
The cruelty is the point, as with many similar things.
August 24, 2025 at 6:31 PM
The cruelty is the point, as with many similar things.
The use of various ad-blockers can help.
August 17, 2025 at 7:17 PM
The use of various ad-blockers can help.
If you're looking for light, fluffy entertainment then it's definitely not for you. It's very dystopian. However, I think it's very well written and looks really good.
This is probably just me, I'm not really a great comedy fan, but I do like high-concept scifi.
This is probably just me, I'm not really a great comedy fan, but I do like high-concept scifi.
August 15, 2025 at 4:43 PM
If you're looking for light, fluffy entertainment then it's definitely not for you. It's very dystopian. However, I think it's very well written and looks really good.
This is probably just me, I'm not really a great comedy fan, but I do like high-concept scifi.
This is probably just me, I'm not really a great comedy fan, but I do like high-concept scifi.
I've been watching it and, yes, there are strong horror components to it. However, Alien: Earth is so much more than that. There's a humongous subplot (or is it the main plot?) about achieving immortality and it's set against a background of five megacorporations owning… everything.
August 15, 2025 at 4:35 PM
I've been watching it and, yes, there are strong horror components to it. However, Alien: Earth is so much more than that. There's a humongous subplot (or is it the main plot?) about achieving immortality and it's set against a background of five megacorporations owning… everything.
Meanwhile in Brighton...
August 2, 2025 at 11:47 AM
Meanwhile in Brighton...
Ah! Now I have an explanation for why discovery learning worked for me but not for others (or in general). Many thanks for that!
July 20, 2025 at 10:38 AM
Ah! Now I have an explanation for why discovery learning worked for me but not for others (or in general). Many thanks for that!
Try and copy *that* bad boy year 10! 😛
July 12, 2025 at 9:51 AM
Try and copy *that* bad boy year 10! 😛
Results:
15> c(coffee).
{ok,coffee}
16> coffee:testing().
[{espresso,medium,false,2.5},
{espresso,medium,true,3.5},
{espresso,large,false,3.5},
{espresso,large,true,4.5},
{espresso,xl,false,4.0},
{espresso,xl,true,5.0},
{americano,medium,false,3.0},
{americano,medium,true,4.0},
….
15> c(coffee).
{ok,coffee}
16> coffee:testing().
[{espresso,medium,false,2.5},
{espresso,medium,true,3.5},
{espresso,large,false,3.5},
{espresso,large,true,4.5},
{espresso,xl,false,4.0},
{espresso,xl,true,5.0},
{americano,medium,false,3.0},
{americano,medium,true,4.0},
….
July 12, 2025 at 9:49 AM
Results:
15> c(coffee).
{ok,coffee}
16> coffee:testing().
[{espresso,medium,false,2.5},
{espresso,medium,true,3.5},
{espresso,large,false,3.5},
{espresso,large,true,4.5},
{espresso,xl,false,4.0},
{espresso,xl,true,5.0},
{americano,medium,false,3.0},
{americano,medium,true,4.0},
….
15> c(coffee).
{ok,coffee}
16> coffee:testing().
[{espresso,medium,false,2.5},
{espresso,medium,true,3.5},
{espresso,large,false,3.5},
{espresso,large,true,4.5},
{espresso,xl,false,4.0},
{espresso,xl,true,5.0},
{americano,medium,false,3.0},
{americano,medium,true,4.0},
….