Sunlight Sterilization of Water

[Turtle]

Thanks guys :hyper: That's a good looking Archimedes death ray you got there, T :bouquet:

 

Growth medium looks pretty cheap $(10-20):

 

Nutrient Agar, Dehydrated | WARD'S Natural Science

 

~modest

 

alas it was almost entirely cardboard and once it got damp it wrinkled up & i had to pitch it out with the recycling. i have a design for an all-metal collapsible model bumping around in my head, however i now think it's a poor way to make charcoal. :bouquet: nonetheless, the reflector for water sterilization sounds like a great school science project to me. :hihi:

[36HitMan]

Technical Data