|crosscut image of a magnatron|
Dr. Spencer worked for the Raytheon Company and in 1947 they introduced the first microwave oven called the "Radarange." It was the size of a refrigerator and you could purchase one for about $5,000. 70 years later and we can by tiny ones for less than $100!
The 1940 US Census will be released in less than 20 days! Check out all the amazing information, webinars, and blog posts at the 1940 US Census Community Project. Even better, help us all and sign up to become an indexer!
Disclosure: as a member of the 1940 US Census Ambassador Program, this post has entered me into the weekly contest for a $50 Amazon gift card.
*Image: Magnetron cross-cut