Across
- 2. He completely changed the way we understand the behavior of things as basic as light, gravity, and time
- 3. Pioneer of electronic computers. Invented the first compiler and was the principal architect of COBOL, the most widely used computer language of the twentieth century.
- 5. this chemical explosive, invented in China in the 9th century, has been a major factor in military technology (and, by extension, in wars that changed the course of human history).
- 10. Ground breaking discoveries in chimpanzee behavior; established that chimpanzees have similar social behavior to humans and also that they make tools, and eat and hunt for meat.
- 14. it use has offered mankind a glimpse of everything from distant stars and galaxies to the minute workings of living cells.
- 18. The father of microbiology, he used remarkable self-made lenses to discover single-celled animals and plants, bacteria, and spermatozoa.
- 21. it uses one or more pickups to convert the vibration of its strings into electrical signals.
- 23. the 20th century’s most influential psychologist; pioneered the science of behaviorism; discovered the power of positive reinforcement in learning;
- 27. to establish communication from ocean to land, it also serves as a vital role in ocean observing as well.
- 28. The first person to correctly describe blood’s circulation in the body.He showed that arteries and veins form a complete circuit. The circuit starts at the heart and leads back to the heart.
- 29. it decreased the amount of time required to travel across continents and made the world a smaller place.
- 31. is to produce audio output that can be heard by the listener.
- 34. is a vehicle designed to provide a high tractive effort (pulling force) at slow speeds, in order to haul a trailer or machinery used in agriculture or construction.
- 35. Founder of modern microbiology
- 37. Profoundly changed our understanding of nature with his law of universal gravitation and his laws of motion;
- 38. Founded quantum theory with his proposal that hot objects radiate only certain allowed values of energy, all of which are multiples of a number now called the Planck constant
- 39. an Austrian mathematician and physicist best known for articulating a principle known as the 'Doppler effect.'
- 40. is the fundamental building block of the circuitry that governs the operation of computers, cellular phones, and all other modern electronics.
Down
- 1. Utilized the organizing principles of the periodic table to correctly predict the existence and properties of six new chemical elements.
- 4. a device for detecting electric charge and it was invented by Jean Nollet in 1748.
- 6. Authored one of the most famous books in history, On the Origin of Species, in which he described and provided evidence for the theory of evolution by natural selection.
- 7. a technology which uses sound wave to find and identify objects in water. Sound wave holds advantage of attenuating less in water than electromagnetic waves.
- 8. An instrument which measures vertical distance with respect to a reference level.
- 9. saved millions of lives by killing and preventing the growth of harmful bacteria.
- 11. Founder of modern geology
- 12. discovered the first moons ever known to orbit another planet and that the Milky Way is made of stars. He rationalized how objects are affected by gravity, stated the principle of inertia, and proposed the first theory of relativity.
- 13. Established that the cell is the basic unit of all living things
- 15. A Scottish-born scientist and inventor best known for inventing the first working telephone in 1876
- 16. is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history and represents a major advance in agriculture.
- 17. Musical instrument whose sound is made with strings struck by hammers that are moved from a keyboard.
- 19. The father of nuclear chemistry and nuclear physics; discovered and named the atomic nucleus, the proton, the alpha particle, and the beta particle;
- 20. invented about 100 BC in China, paper has been indispensible in allowing us to write down and share our ideas.
- 22. Father of the industrial revolution; radically improved the steam engine; invented high pressure steam engines; independently discovered latent heat; invented the world’s first copying machine.
- 24. captures our body temperature using infrared sensors that detect the amount of energy given off by the eardrum.
- 25. is a stove with an integrated electrical heating device to cook and bake.
- 26. is a unique form of transportation because they can travel large distances but are cheaper than airplanes and take less time than ships.
- 30. his famous equations unified the forces of electricity and magnetism, indicating that light is an electromagnetic wave.
- 32. Discovered the basic principles of heredity through experiments in his garden. His observations became the foundation of modern genetics and the study of heredity, and he is widely considered a pioneer in the field of genetics.
- 33. is a device that measures wind speed.
- 36. have been made somewhat obsolete by satellites and global positioning systems, but their impact on early navigation and exploration