This is my collection of ideas for using it: www.teachphysics.org/home/infrare...

#ITeachPhysics

@rhettallain.bsky.social has some good videos with IR cameras. As does @hookean.bsky.social

It is a HikMicro MiniX which connects via WiFi to android or apple device and is wireless. In low tech setup I have used visualiser pointing at phone to display on the board. Wireless is good as can move it around the lab. Has manual focus which is good for macro work.

Presumably with a negative value.

The safety guidance was updated awhile back and now you are recommended by @cleapss.bsky.social to view only through a passive welding filter. (See magnesium Hazcard - reason is UVA produced).

#IteachPhysics
#SciTeachUK

Good extension.

i was asked this question on my successful interview for a place at Cambridge University 30 years ago but with speed v and 2v.

Thanks - will look out for a cheap second hand one.

What do you use as the launcher?

Agreed Java lab is great. In fact for physics there is so many great simulations and interactives. When I teach biology or chemistry I find it depressing how few interactives there are in comparison to physics.

In the UK we have these soft iron C cores and pre wound coils which you can put two together to make a transformer. One on its own with a soft iron bar across it makes a very strong electromagnet. The launcher switch wasn’t working so I went back to the ripping aluminium foil to break the circuit.

#ITeachPhysics spelt correctly this time

Test run went this afternoon

I was told it was broken- the electromagnet was the problem so I improvised a stronger one and it worked well and I decided the electromagnet would support a bigger monkey which I have bought this year.

At my previous school we used a perspex tube with a rubber bung in the end with a foot pump to pressurise and the bung ripped some aluminium foil as it left to break the circuit. But my current school has this one lascells.com/product/monk...

I have treated myself to a better monkey ready for Thursday: