Land snails and slugs produce mucus, but so does every other kind of gastropod, from marine, freshwater and terrestrial habitats. The reproductive system of gastropods also produces mucus internally from special glands.
Dry ice was discovered rather than invented. It was first discovered by Charles Thilorier a French chemist in 1834. Check link below for more information on dry ice and dry i â¦ ce makers.
AP. DALLAS, Sept. 12â Samuel Bert, the man credited with inventing the snow cone ice machine, died Sunday at Baylor University Medical Center of complications from a fall that broke his hip two weeks ago. He was 88 years old. Mr. Bert worked at the State Fair of Texas for 65 years. His son, Nick, said his father invented a machine to mechanically scrape ice for snow cones in the late 1920's.