Silca just introduced a new tire sealant, and it’s not just the formulation that’s making waves. Their new Ultimate Sealant is said to be, well, the ultimate. They’re so confident in the sealing ...

Injection molding: a lot harder than you'd think! I picked up a benchtop injection molding machine to play with, and thought a "simple" double convex singlet lens would be a good first project ...