Making a Passive Pre from Cabbages

edited October 2015 in DIY
A new project from Colin we discussed this morning.

As most LDRs are poisonous, as they contain cadmium, Col recommends selenium based LDRs.

Now comes the clever bit. Selenium is found in cabbages.

How many of these do I need, Col?



  • About 10,000,000,000,000 or all the world cabbages, cool I hate them, dig Dave dig.
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