Guest
or I guess "bars" od selenium would be ok. I want to reconstruct
Willoughby's discovery of photoconductivity for a science demo. Any
body in this group know where to purchase small amounts of selenium?
Yes I know it is a hazardous material and promise to be careful.
Thanks!
Ed V.
Willoughby's discovery of photoconductivity for a science demo. Any
body in this group know where to purchase small amounts of selenium?
Yes I know it is a hazardous material and promise to be careful.
Thanks!
Ed V.