In any language, both the sender and the receiver have to know the same code, which means that secret codes can be used to keep communication private. In this century, the ability to code information as electric currents in wires, electromagnetic waves in space, and light in glass fibers has made communication millions of times faster than is possible by mail or sound. Continuous signals must be transformed into digital codes before they can be processed by a computer. Science helps drive technology, as it addresses questions that demand more sophisticated instruments and provides principles for better instrumentation and technique. Technology is essential to science, because it provides instruments and techniques that enable observations of objects and phenomena that are otherwise unobservable due to factors such as quantity, distance, location, size, and speed.
Technology also provides tools for investigations, inquiry, and analysis.
In any particular environment, the growth and survival of organisms depend on the physical conditions. Or one organism may scavenge or decompose another. Relationships may be competitive or mutually beneficial. Some species have become so adapted to each other that neither could survive without the other. Keep records of their investigations and observations and not change the records later.