What is SETI?
SETI stands for Search for Extra-Terrestrial Intelligence. The goal of SETI is to study the sky in order to see if there are any transmissions from possible life on other planets. “Project Ozma” was the first SETI project ever performed. It took place in 1960 by Franke Drake, an astonomer at Cornell University. Using a radio telescope with a 25-meter-diameter, he looked at the Epsilon Eridani and Tau Ceti stars. This project did not bring about on any worthwhile results. On August 15, 1977, the Ohio State University SETI became quite popular when Jerry R. Ehman noticed a very strong signal coming from the telescope. After noticing it, he marked it with a “wow” on the printout, and because of this, the signal is referred to as the Wow! Signal. This is one of the best indicators of alien life forms. Along with using radio telescopes, SETI also uses probes and lasers to try to detect other life forms.
What is Nanotechnology?
Nanotechnology is a type of science that attempts to govern matter on a molecular and atomic level; it also attempts to create equipment of that size. Important concepts of Nanotechnology were first introduced in 1959, in a speech called “There’s Plenty of Room at the Bottom.” The performer of this speech was Richard Feymen, a physicist. The word was made popular by K. Eric Drexler during the 1980’s. He spoke about it in the sense of creating equipment that was only a small amount of nanometers wide; they would be so small that a cell would be larger than them. There are two approaches to nanotechnology, bottom-up processing and top-down processing. Bottom-up processing focuses on building complex objects from small parts. Top-down processing focuses on making smaller objects through the direction of larger objects.
Links:
http://en.wikipedia.org/wiki/SETI
http://setiathome.berkeley.edu/



















