Day in Engineering History Archive - June 5

June 5


1760: Johan Gadolin, discoverer of the element yttrium (the Y in YIG), was born. 1765: German physicist Johann Gottlieb Friedrich von Bohnenberger, inventor of the gyroscope, was born. 1900: Hungarian Nobel physicist Dennis Gabor, inventor of holography, was born. 1933: The United States went off the gold standard. 1938: The Bell Labs "Voder" became the first machine to produce intelligible speech-like sounds. 1985: General Motors agreed to buy Hughes Aircraft for more than $5 billion. 1977: The first successful personal computer, the Apple II, went on sale.

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Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified. Many years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred. Images used in the logos are often from open source websites like Wikipedia, and are specifically credited with a hyperlink back to the source where possible. Fair Use laws permit small samples of copyrighted content.