If you were at Gallaudet taking up biology, chemistry, or psychic courses to meet the liberal-arts requirements, you probably forgot all the scientific signs you learned already. At that time, probably no agreements on what signs to use for different scientific signs, perhaps each professors created their own. What if you are a Deaf researcher, it's confusing enough, so one is making a serious attempt to uniform them, so it'll be the same in all labs across our nation and perhaps around the world. I myself have a problem with refilling my prescription, not remembering how to spell that damn word that is a mile long. Signing heart medicine is good enough, just hope that pharmacy not lost my file, or I had to wait around while they call my cardiologist. Anyway, these Deaf researchers will find a way to overcome the obstacles in the field and succeed in life with a successful career, and you never know, it may be the Deaf that discovers the cure to cancer and heart diseases.
It's only an hour flight, Cuban visa can be bought during check-in at the airline counter before departure, just don't forget your passport. I exchanged dollars into their convertible (CUC) pesos upon arrival. I stayed at an hostel next to the baseball stadium. I focused on videotaping their culture alone rather than being somewhat biased traveling group with their hectic schedule. One day took a Soviet era Lada taxi to outskirts of Havana to visit a Deaf school. They asked me what we Deaf Americans do with our obsolete TTY as we are using VP nowadays, hopefully some organizations will donate those equipment. I felt like was blasted into the past, surrounded by all those vintage automobiles.