What's Happening? Top inventions that were made by women changed the world, let's praise them! 1. Medical syringe to be honest, I never knew that who did the syringe and always had no information about women doing any inventions I don't know why but this invention was done by Letitia Geer and was done in 1899, as they did the syringe that required two hands to do the injections correctly without resulting any harm, so basically, she invented the syringe that required only one hand that all medical practices use it now! "Her syringe design includes a cylinder, piston rod, a handle, and nozzle. The piston rod had a U-shaped handle for easier grip. The handle was designed in a way to be reached even in extreme positions. The hook at the free end of the syringe prevented hands from slipping." As her syringe had a lot of benefits because it was cheap and can easily be used and done by only using one hand, as it's easy to use by any person, she died at the age of ...
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