• Watch Out for Scammers!

    We've now added a color code for all accounts. Orange accounts are new members, Blue are full members, and Green are Supporters. If you get a message about a sale from an orange account, make sure you pay attention before sending any money!

koshkin

I work with Electro-Optical devices for a living. And play with them for fun. It is nice when you job and your hobbies are not far apart.

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The greatest obstacle to discovery is not ignorance---it is the illusion of knowledge