-
John napier
John Napier invented a system called ''Napiers Bones''made from horn, bone or ivory the device allowed the capability of multiplying by adding numbers and dividing by subtracting. -
James Gregory
he invented a reflecting teloscope.made from horn, bone or ivory the device allowed the capability of multiplying by adding numbers and dividing by subtracting. -
telopgraph
Samuel Soemmering invented a crude telograph. It send messages to important people. -
refirdgeration
Jacob Jerkins made a fridge for people to store cool food. -
rope
in China rope was invtented by acient egypts.
