Practical, no doubt, but pretty unsporting, especially when it’s possible to cast custom lenses at home using silicone molds and epoxy resins. Possible, but not exactly easy, as [Zachary Tong ...

Today we're making lenses with epoxy, using a replication molding technique. It... mostly works 😇 ==== Details ==== We can ...

Two more Texas wins in court: sweeping small business regulation, parental rights cases At 65 With $830K in a 401(k) and Social Security: Is a Roth IRA Conversion Still Possible? Top 10 Things ...

Silicone sealant, the white waterproof lining found around showers or sinks, is notoriously difficult to keep clean due to its constant exposure to water. Black mould, which thrives in damp ...