An educational model simulation of the sound produced by lightning in the sky has been employed to demonstrate realistic signatures of thunder and its connection to the particular structure of the lightning channel. Algorithms used in the past have been revisited and implemented, making use of current computer techniques. The basic properties of…

The Internet provides a resource accessible to students for solving problems and satisfying information needs. Describes how students can use e-mail and the NASA Spacelink, Geographic Name Server, and Weather Underground databases. Appendices provide internet addresses and selected state telecommunications networks. Sample student inquiries are…

Described is a simple electronic interface that can receive signals from up to four analog sensors and four event detectors and save the data on disk. Schematic diagrams, construction details, sample temperature plot and weather station logging programs, and a parts list are included. (KR)