7/5: Sunday Morning

Hosted by Jane Pauley. Featured: The military newspaper Star and Stripes, actor J.K. Simmons, “Little House on the Prairie” returns to screens, Founding Father Thomas Paine, a visit to George Washington’s Mount Vernon, and hifi listening bars.

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Optimal AAA calibres in WW2 and today

.Here’s a shipload of hindsight: The optimal anti-air artillery calibres of World War Two.7.62…7.92 mm machineguns were rather ineffective. There were some aircraft with thin armour plating during WW1 already. Such armour plating provided good protec…

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