Oh,i finally found my typo there, should have been *multi-lense-systems, of course 😅

Yes to everything that has already been mentioned. Additionally, I use some geogebra constructions as well (especially for linear optics, nice interactive demos for images from lenses, and multi-sense-systems)

[student name]squared, and many more funny submissions as their chosen units. 🤣
I love observing them, see how they already solve certain problems creatively, and afterwards I have an excellent motivation to introduce the SI system, as well as talk about accuracy of measurements 🤗

Here is where we got this set from: astromedia.de/Das-Handspek...
(There is also an english version somewhere 🤔)

With all of that, i'm very thankful to my colleagues, because both these were team-teaching-efforts 💪.
And i'm glad our study programs support us properly workings teams, going beyond the faculty exchange and peer support.

for just nice drawings without simulation capability, i tend to go for
www.circuit-diagram.org

yep, i use this one, too, especially for visualizing circuits that ny students will have to build in their practicals.

i have since found this resource:
www.tubecollection.de/ura/roentgen...

so my guess by comparison is, the above setup is roughly 100 years old

😲 okay! even more reason to double check 😂

there is also a #SciTeachUK feed, but i read the #iTeachPhysics, mostly, so can't vouch for how active that one is

huh... that's a neat solution!

besides the point, i was sure the slit spacing (and other dimensions) would be labelled on the double slit? 🤔
gonna check ours next time i'm doing that unit

yup, we have similar racks to hang them, sorted by colour and length. the racks are mounted on the inside of our labs storage cupboard doors, so they take up no extra space, are tucked away, except when you actuall need them they're right there in your face 😊

i've either been drawing stuff by hand, created my own geogebra file, or copied-and-modified geogebra materials to suit my liking (and keep things interactive) 🤔
but none of that is truly the ideal solution for everything, unfortunately