Hints and tips:
...Konstantin Tsiolkovsky was best known for two things: his enormous ear trumpet (used to counter deafness caused by scarlet fever) and his visionary ideas about rocketry and space travel....
...Ad rates tend to fall in the range of $15 to $30 per 1,000 impressions, calculated on a projected number of downloads per episode — about five times the cost for traditional radio — but some shows command...
...Pandora has been waging a lobbying campaign for lower royalty rates to bring internet radio in line with broadcast radio, ahead of a judicial ruling next year that will set a new rate....
International Edition