Science and Technology
- Echo satellite, one of the first communications satellites
- EChO, a proposed European Space Agency mission to study exoplanet atmospheres.
- Echo sounding, a way to measure water depth
- Light echo, a visual phenomenon
- Signal reflection, a concept in telecommunications
- ECHO Clearinghouse, NASA's registry of Earth Science data and services, an early SOA example
An Echo is a multiple reflection of sound which can happen in a covered area
Read more about this topic: Echo
Famous quotes containing the words science and, science and/or technology:
“Science and art are only too often a superior kind of dope, possessing this advantage over booze and morphia: that they can be indulged in with a good conscience and with the conviction that, in the process of indulging, one is leading the “higher life.””
—Aldous Huxley (1894–1963)
“Religions die when they are proved to be true. Science is the record of dead religions.”
—Oscar Wilde (1854–1900)
“One can prove or refute anything at all with words. Soon people will perfect language technology to such an extent that they’ll be proving with mathematical precision that twice two is seven.”
—Anton Pavlovich Chekhov (1860–1904)