Freebase(0.00 / 0 votes)Rate this definition: Derived demand is a term in economics, where demand for a factor of production or intermediate good occurs as a result of the demand for another intermediate or final good.
10 best places to see this summerâs solar eclipse. On August 21st, a total solar eclipse will be visible to mainland America. Find out why it is drawing giddy excitement from the public, as well as astronomy gurus. On Aug. 21, a swath of the USA will plunge into darkness during a continent-wide total solar eclipse.
Viewing a Solar Eclipse. 1  1. Read about a solar eclipse. 2  2. Be aware of the methods that shouldn't be used for viewing a solar eclipse. 3  3. Make an eclipse viewer or a pinhole projector.  4. Use a solar filter on your viewing 1  equipment. 5. View an eclipse indirectly by making a projection.  6. Use welder's 1  glass. 7. Use mounted filters.