BIOL 2041 Lecture 3: Chapter 3
Document Summary
Chapter 3 the methods of microbiology: it can be absorbed if its intensity reduces because it transferred some/all to the object; when. Radio waves are long (up to 2000 m), and gamma rays are extremely short (<0. 01 nm). Light, to which our eyes are sensitive, is in the middle. Lights can also be described as photons (streams of particles) or as rays (narrow beams). Blue light is the shortest wavelength, and red is the longest; yellow and green are intermediate. White light is a mixture of all wavelengths, and absorption/refraction can reveal its component. Microscopy the construction and use of microscopes; began in the 17th century with antony van. Culture provide suitable conditions for microorganisms" growth and multiplication; microbiologists must do this to do experiments on microorganisms. Light is part of a continuous spectrum of em waves, with radio waves at one end and gamma rays (produced in the nucleus of radioactive atoms) at the other.
