Ask the Experts
Flux Residue During Pin-in-Paste
Our application is for pin-in-paste reflow using tin/lead no-clean, solder paste. Is it standard practice to increase the bottom side temperature to ensure the flux ...
Responses by:
Gary Freedman
President, Colab Engineering
Larry Harman
SMT Engineer, ACDi
Tony Lentz
Field Applications, FCT Assembly
Gerard O'Brien
President, S T and S Testing and Analysis
Fritz Byle
Process Engineer, Astronautics
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The day was Apr 26. What year was it?
Polio Vaccine Trials Begin
What Year
The Salk polio vaccine field trials, involving 1.8 million children, begin at the Franklin Sherman Elementary School in McLean, Virginia
See the answer below.
What Year Was It Answer
Polio Vaccine Trials Begin
Answer: April 26, 1954
April 26, 2024
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Test Your Knowledge
Mount Elbert is the highest peak in which mountain range?
See answer below.
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Test Your Knowledge Answer
Mount Elbert is the highest peak in which mountain range?
Answer: The Rockies (USA), which stretch more than 3,000 miles (4,800 km) from the northernmost part of British Columbia, in western Canada, to New Mexico, in the Southwestern United States. Mount Elbert is in west-central Colorado.