How does scientist discover new knowledge?

Can i plug a 220 volt 1500 watt 60 Hz cooker into a regular 220 volt outlet? What is the symbol for carbonite? The difference between saying You are stubborn and This is the second time we are unable to reach an agreement is the difference between what two types of communication? How do you reset your age on your Tanita scale? What is The ability to change color to avoid predators is a? Are all cells surrounded by a phosphilipid membrane? How do you pronounce Galileo Galilei? How is life in Polynesia? What is a broad stream of electron particles called bursting upward from the surface of the Sun? Is has special chemicals on the tip of its head to help it into things? How Does pressure change diffusion? How many yards are there in 2.7 miles? Explain how blood returns to the heart even though it must sometimes travel from the lower extremities against gravity? What past discoveries about genetics did scientists make that now allow them to add genes from one organism to another or engineered genes into an organism? Why does Pluto have more moons than the moon? What is the volume of water lost from stool per day? At which temperature would a reaction with H -220 kJmol and S -0.05 kJ(mol K) be spontaneous? How do you install a starter in a 1994 Saturn? What catalyst is effective in the destruction of atmospheric ozone O3? Can you divide one cubic unit into one thousand mini cubic units?