MIT Database Systems (6.830) TA Course Notes
Audio y transcripción de un speech de S. Wolfram cuando le dieron un award. Habla acerca de la busqueda del conocimiento computable.
# Definition and examples
# Sound files to show the size of a decibel
# Standard reference levels ("absolute" sound level)
# Logarithmic response, psychophysical measures, sones and phons
# Recording level and decibels (dBV and dBm)
# Intensity, radiation and dB
# dBi and anisotropic radiation
# Example problems using dB for amplifier gain, speaker power, hearing sensitivity etc.
# Occupational health and safety and the law
# Related pages
# What is a logarithm? A brief introduction.