The telephone was invented by:
Einstein, german physicist, won the Nobel prize in:
The artificial radioactivity was discovered by:
Who proposed an atomic model in which the atom was a sphere of positive matter, evenly distributed, in which were dispersed the electrons?
Gauss, german scientist (1777-1855) was known for his works on:
Besides formulating the laws of gravitation and movement, Newton (1642-1727) demonstrated:
The calculator was invented by: