Invention of the Pyroelectric Ear Thermometer

Jacob Fraden, a physician in San Diego, CA, USA invented the pyroelectric ear thermometer in 1990. Continue reading

More Suburbanites than City and Rural Dwellers

In 1990, the United States achieved the distinction of being the first country Continue reading

Eppo Numan, Transatlantic flight

Eppo Numan piloted a transatlantic flight on an ultralight airplane. Continue reading