Viewing profile — jarvist

The statement that electric pressure cookers measure pressure absolutely (i.e. not relative to local pressure) was news to me, and definitely a good hack to know if you're living a…

For my textbooks, I use little record cards. I write the book reference on the top line, then whatever notes or quotations etc. If it's a heavily referred to book, I sometimes use …

I've always had watch history off, but my searches now return a couple of pages of short form nonsense, before my actual results.

Absolutely. Key for me was to invite children's friends (and family) along, host it in our house and make it a recurring weekly thing. The books (presumably you also have these fro…

It's been really rewarding. I definitely recommend jumping in. I started with my reception-age child (+ school friends), and have just extended it to their younger sibling (+ frien…

Practically speaking (running a little maths circle in the UK for my children, and some of their friends from nursery and primary school), I have found the Nrich website to be the …

What do you not like about Feynman's "little arrows" / rotating clock hands in the QED book? I can't think of a more simple metaphor for the exponential of a complex phase, exp(i o…

That's great! Their motivation & updates seem very sensible. Calculus Made Easy is a very nice compact book for university students who have started to forgot their high school tra…

Water is incredibly efficient at transmitting sound.

The mug will attenuate almost all the signal. Maybe try with a disposable plastic cup?

This is super useful to know about! The sprite designer & waveform editor / tracker is a really good creative introduction to computers for small children. And you can jump straigh…

But it is theatre. A single £0.01 Zener diode can generate vastly more guaranteed (by quantum mechanics!) randomness, without all the possibility of failure, entropy leaking etc.

Yes, but what you are missing is that behaviour has changed! We have that level of net road deaths today, given that kids are being driven everywhere. So you can't state from your …

The speed of sound does not depend on pressure, only temperature. I suspect this is occurring because the (sonic) flow through the nozzle cools as it expands, therefore the speed o…

There's also a fantastic Youtube video in a neutron beam facility of a Moka pot, in which you can see the full process of brewing. The water and plastic handle appear 'black' as hy…

A key quality of life improvement for me was to realise that you can eject the grounds from the filter funnel by putting the tube to your lips and blowing gently, ejecting the coff…

I'm certain all the reactors will SCRAM (shut down the nuclear chain reaction), but then every large (i.e. all) power reactors need active cooling to remove the decay heat and prev…

Strangely this piece doesn't mention nuclear power plants: with 400 or so operational nuclear power plants worldwide, that's a lot of core meltdowns. Similarly I would imagine ther…

My experience is a first implementation / novice programmer will write Julia code of a similar speed to python. But then an intermediate Julia programmer can adapt that same code t…

Why would you want control? That means more bureaucracy you need to do yourself. In the UK (and I believe everywhere with a well functioning research culture), the 'Haldane princip…

https://github.com/whitead/paper-qa >This is a minimal package for doing question and answering from PDFs or text files (which can be raw HTML). It strives to give very good answer…

Interestingly, in the UK I get this: Me: As a part of Google, do you have my personal info? Bard: I do not have your personal information. I am not able to access or process any pe…

It's certainly not perfect (still a bit coarse, doesn't state what % of the work is done, doesn't state which parts of the paper the author worked on), but CRediT statements are ga…

I don't think this is true, at least in the UK. The BBC computer literacy project meant that there were BBC Model Bs in every UK school, with tie-in educational materials. In the e…

Well write it up and put it on the ArXiV / send it to the author for version 2!