Day in Engineering History Archive - June 25

June 25

Today is 1/2-Way to Christmas. 1903: Marie Curie went before the examination committee for her Ph.D. 1943: William Moggridge, designer of the first laptop computer, was born. 1951: The first commercial color telecast took place when CBS transmitted a 1-hour special from NY to four other cities. 1970: The U.S. FCC handed down a ruling, making it illegal for radio stations to put telephone calls on the air without the permission of the person being called. 1995: Nobel Prize winner Ernest Walton, co-inventor of the first nuclear particle accelerator, died. 1998: contact was lost with the Solar and Heliospheric Observatory (SOHO). 1981: Microsoft incorporated.

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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.