Ioannis Gkialas

Greek scientist and university professor

Greek scientist and mathematician

American matrix biologist

Greek botanist

Greek scientist and university professor

Greek geologist, universtiy professor and politician

Greek mathematician, physicist, engineer, inventor, and astronomer

pre-Socratic Greek philosopher

Ancient Greek philosopher

Ancient Greek mathematician and engineer

Ancient Greek engineer

Greek computer scientist

American social scientist

Science communicator, Writer

Greek botanist and writer

Greek academic

Greek seismologist

Greek physicist