Double slit exoeriment

Tim Robbins

Hi,

My son is mad to do Double slit experiment. I mean really mad. From what I can see it's much easier to do with a laser and a double slit slide. I tried with a torch and cardboard box and couldn't get close to get it working

So wondering where could I buy a cheap laser and where could I get a slide with the double slit?

Note: I need to get it tomorrow, anywhere in Dublin I could get both?

Emblematic

A torch will never work as the light needs to be a single wavelength for it to work.

You might try getting a laser presenter. Currys the electrical shop in Dublin seems to do them:

https://www.currys.ie/products/logik-lpres23-wireless-laser-presenter-10235887.html

This site suggests using a lice comb for the double slits. You cover all but two of the slits.

https://www.exploratorium.edu/snacks/two-slit-experiment

You might get a lice comb in a pharmacy in Dublin.

Best of luck.

I just thought you were talking about the quantum double split experiment, I was wondering how you were going to generate single photons at home.

Tim Robbins

Thanks, but need it today as it is stem week this week.

https://www.boards.ie/discussion/comment/121370120#Comment_121370120

As far as I am aware, Dublin has pharmacies and several Currys.

Emblematic

Harvey Norman also appear to do laser pointers:

https://www.harveynorman.ie/computing/computer-accessories/techly-wireless-presenter-with-integrated-laser-pointer-black-en.html

JayBee66

Did you manage to take any of your eyes out with the laser pointer?