Across
- Published a nontechnical explanation of his work called "A Brief History of Time".
- Published his theory of relativity in 1905.
- Working in Cambridge, he discovered two basic forms of radioactivity and established the nuclear structure of the atom.
- His heliocentric (sun centred) theory of the solar system marked the beginning of the scientific revolution, and of a new view of a greatly enlarged universe.
- English chemist who experimented with gases by inhaling them. This experimental procedure nearly proved fatal on several occasions. He has a miner's lamp named after him.
- A writer of scientific works, he was a member of the presidential commission that investigated the Space Shuttle Challenger disaster.
- Formulated the three laws of planetary motion that bear his name by using the astronomical observations of by Tycho Brahe.
- His Principia (1687) explained the laws of motion, universal gravitation and falling apples.
- Best known for her work in the study of radioactivity, together with her husband, Pierre.
- Discovered the relationship between velocity and distance of distant galaxies. He has an orbiting telescope named after him.
- English astronomer who was first to calculate the orbit of the comet that is named after him.
Down
- He is best known for his uncertainty principle.
- Cambridge Physicist who predicted the existence of positrons before their discovery.
- His principle of induction was a landmark in applied science, for it made possible the dynamo, or generator, which produces electricity by mechanical means.
- He perfected the burner which bears his name and developed the process of emission spectroscopy with heated elements.
- Used a sensitive torsion balance to measure the value of the gravitational constant G. This allowed him to calculate the mass of the Earth.
- He constructed his world famous thermometer, with 0 for the freezing point of water and 100 for the boiling point.
- Showed that a few relatively simple mathematical equations could express the interrelated behaviour of electric and magnetic fields.
Famous Scientists Dr J E F Frost
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