The hot water bottle
The weather outside is getting colder and colder. Winter is coming – unfortunately this is true.
For going outside we need more often and more layers of warm jackets, warm shoes, cups, scarves and even gloves to put on. But today I would like to tell you about two useful things for the winter time.
Solution:
False! In 1903 Slavoljub Eduard Penkala (April 20, 1871 – February 5, 1922) a naturalised Croatian engineer first patented the "Termofor" a rubber hot water bottle.