Australia's Science Forum

The sealed radioactive sources supplied to schools do not need any licencing or special storage, the activity is so small. Same for unsealed needle source for cloud chamber.They are sent internationally through the post in a plastic case or tube! They are manufactured by Spectrum Techniques in Ameri...

Wiltronics supply super quality, very flexible 4mm stackable banana leads in a variety of colours and lengths. Yes they are a bit expensive but worth every cent, never had one fail. Just send alligator clips out if required. The leads come back in a big bunch but are really easy to untangle without ...

Here is a precipitation table designed by one of my predecessors. Just laminated paper (good quality laminating film) they have lasted at least 6 years so far. The half black half white circle means just one test. Cheers