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Birth — 1939 24 January 1939 White Plains, New York, USA
1940 - April - 1st electron microscope demonstrated (RCA), Philadelphia, Pennsylvania, USA
The microwave oven was invented accidentally in 1945 by Percy Spencer, a Raytheon engineer. While testing a magnetron, he noticed microwaves melted a candy bar in his pocket. Experimenting further, he discovered microwaves could cook food quickly. Raytheon patented the process, and by 1947, they built the first commercial microwave oven, called the 'Radarange.' Initially used in commercial settings, microwaves becomes affordable for home use by the 1960s and 1970s, revolutionizing cooking.
The cell phone was invented by Martin Cooper of Motorola. On April 3, 1973, he made the first handheld mobile phone call with the Motorola DynaTAC. This device weighed 2.5 pounds and was 10 inches long, offering 30 minutes of talk time and requiring 10 hours to charge. The first commercial cell phone was released in 1983, revolutionizing communication and leading to the modern smartphones we use today.
1981 - June 5 - First reported case of AIDS (Acquired Immune Deficiency Syndrome)
1989 - The World Wide Web is invented at CERN (Tim Berners-Lee, UK)
Death
Name: Sonja Ingeborg Krantz [Sonja Ryder] SSN: 095309677 Gender: Female Race: White Birth Date: 24 Jan 1939 Birth Place: White Plains, New York Death Date: 15 Nov 1996 [7 Nov 1996] Father: Karl O Krantz Mother: Amanda Lilijestrom Type of Claim: Original SSN. Notes: Apr 1955: Name listed as SONJA INGEBORG KRANTZ; Apr 1963: Name listed as SONJA RYDER; Sep 1970: Name listed as SONJA INGEBORG RYDER; 29 Jan 1997: Name listed as SONJA I RYDER
Birth — 1939
1940 - April - 1st electron microscope demonstrated (RCA), Philadelphia, Pennsylvania, USA
1981 - June 5 - First reported case of AIDS (Acquired Immune Deficiency Syndrome)
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