Interesting Things with JC #684: "Titan - A Revolutionary Submarine for Deep-Sea Exploration"

Titan, the innovative Cyclops-class submersible, combines cutting-edge technology and real-time hull health monitoring for deep-sea exploration, enabling research, data collection, and film production. Unveil the mysteries of the ocean with Titan, the practical subsea vessel that unlocks unexplored resources and showcases human ingenuity.

Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical glass. In past decades, it was a popular material used to create decorative vases and bowls as well as crystal glasses and decanters. Lead glass is also known as X-ray glass or radiation shielding glass as one of its major applications is in the absorbance of high energy radiation while maintaining optical transparency. Also, lead glass has a lower thermal conductivity than lead-free glass. Interestingly, even though stained glass windows are a type of leaded glass, industry experts often use them separately to create distinction between the two.

Did you know, flight attendants are only paid their full hourly rate once the aircraft door closes, even though they work hard during boarding, which is the most stressful part of the flight! Let's take a look at the history of this profession in aviation.