Hey thanks for posting this, I met Dr Barnhart and his slide-o-scope at Makerspace Urbana some 15 years ago now and was just trying to remember what his softwar

Hey thanks for posting this, I met Dr Barnhart and his slide-o-scope at Makerspace Urbana some 15 years ago now and was just trying to remember what his software did the other day. One of those synchronicities, glad to see it's still selling. Looks like there's a pared down hobbyist version for less than 200 bucks but can't tell if it's also a Wolfram plug-in or standalone modeling software; I'll have to send the old man an email https://www.opticasoft.com/product-page/optica-em-for-experimental-hobbyist https://www.opticasoft.com/product-page/optica-em-for-experi...