Sciestists
Across
- 2. major contribution was his theory on atoms.
- 6. discovered the first complete specimen of a plesiosaur; deduced the diets of dinosaurs.
- 10. Invented experimental design; devised the statistical concept of variance; unified evolution by natural selection with Mendel’s rules of inheritance defining the new field of population genetics.
- 11. he explained photoelectric effect, in which he proposed the existence of discrete energy packets during the transmission of light.
- 12. Founded the sciences of mechanics and hydrostatics, calculated pi precisely, devised the law of exponents, created new geometrical proofs, invented numerous ingenious mechanical devices and more.
Down
- 1. A founding father of the USA, he shaped our understanding of electricity, coined the electrical terms positive and negative, and invented the lightning rod and bifocal spectacles.
- 3. Codiscovered the chemical elements radium and polonium; made numerous pioneering contributions to the study of radioactive elements; carried out the first research into the treatment of tumors with radiation.
- 4. an English physicist and a Nobel Laureate in Physics, is credited and honoured with the discovery of the electron, which was the first subatomic particles to be discovered.
- 5. A founder of 20th century environmentalism, her book Silent Spring led to a reappraisal of the effect of chemicals such as DDT on the environment, leading to bans and heavy restrictions.
- 7. A genius whose philosophical ideas are still taught, but whose contributions to science retarded progress for almost two millennia.
- 8. the first person in history to recognize that our planet is free in space and does not need to sit on something.
- 9. a British physicist, was awarded the Nobel Prize in 1935 for his discovery of the neutron.